D-Link DSN-640 User Manual Download Page 4

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4.4.1

Physical disk

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4.4.2

RAID group

.............................................................................................................. 57

4.4.3

Virtual disk

............................................................................................................... 60

4.4.4

Snapshot

.................................................................................................................. 65

4.4.5

Logical unit

.............................................................................................................. 68

4.4.6

Example

................................................................................................................... 69

4.5

Enclosure management

.............................................................. 74

4.5.1

Hardware monitor

................................................................................................... 75

4.5.2

UPS

.......................................................................................................................... 76

4.5.3

SES

.......................................................................................................................... 78

4.5.4

Hard drive S.M.A.R.T.

.............................................................................................. 78

4.6

System maintenance

................................................................... 79

4.6.1

System information

................................................................................................. 79

4.6.2

Event log

.................................................................................................................. 80

4.6.3

Upgrade

................................................................................................................... 82

4.6.4

Firmware synchronization

....................................................................................... 82

4.6.5

Reset to factory default

........................................................................................... 83

4.6.6

Import and export

................................................................................................... 83

4.6.7

Reboot and shutdown

............................................................................................. 84

4.7

Home/Logout/Mute

..................................................................... 84

4.7.1

Home

....................................................................................................................... 84

4.7.2

Logout

..................................................................................................................... 84

4.7.3

Mute

......................................................................................................................... 85

Chapter 5

Advanced operations

........................................... 86

5.1

Volume rebuild

............................................................................ 86

5.2

RG migration

............................................................................... 88

5.3

VD extension

............................................................................... 89

5.4

Snapshot

..................................................................................... 89

5.4.1

Create snapshot volume

.......................................................................................... 90

5.4.2

Auto snapshot

.......................................................................................................... 91

5.4.3

Rollback

................................................................................................................... 92

5.4.4

Snapshot constraint

................................................................................................. 93

5.5

Disk roaming

............................................................................... 95

5.6

VD clone

..................................................................................... 95

5.7

SAS JBOD expansion

................................................................. 103

5.7.1

Connecting JBOD

................................................................................................... 103

5.7.2

Upgrade firmware of JBOD

................................................................................... 105

5.8

MPIO and MC/S

........................................................................ 106

5.9

Trunking and LACP

................................................................... 108

5.10

Dual controllers (only for DSN-6410 with DSN-640)

.................. 109

5.10.1

Perform I/O

........................................................................................................... 109

5.10.2

Ownership

............................................................................................................. 110

5.10.3

Controller status

.................................................................................................... 111

5.11

Replication

................................................................................ 112

5.12

VLAN

......................................................................................... 122

Chapter 6

Troubleshooting

.................................................. 125

6.1

System buzzer

.......................................................................... 125

Summary of Contents for DSN-640

Page 1: ...1 D Link iSCSI IP SAN storage 10GbE iSCSI to SATA II SAS RAID IP SAN storage DSN 6410 DSN 6410 with DSN 640 User Manual Version 1 0 ...

Page 2: ...ubject to change without notice For any update information please visit www dlink com Model comparison DSN 6400 series adopted the 2U12 form factor for all models DSN 64x0 IP SAN storages stand for the following models DSN 6410 with DSN 640 Dual controllers This manual will use DSN 6410w DSN 640 for this configuration DSN 6410 Single controller can be upgradable to dual mode The dual controller sp...

Page 3: ...3 4 Rear view 22 2 4 Install battery backup module 25 2 5 Deployment 26 Chapter 3 Quick setup 29 3 1 Management interfaces 29 3 1 1 Serial console 29 3 1 2 Remote control 29 3 1 3 Web UI 30 3 2 How to use the system quickly 32 3 2 1 Quick installation 32 3 2 2 Volume creation wizard 35 Chapter 4 Configuration 38 4 1 Web UI management interface hierarchy 38 4 2 System configuration 39 4 2 1 System ...

Page 4: ...ogout Mute 84 4 7 1 Home 84 4 7 2 Logout 84 4 7 3 Mute 85 Chapter 5 Advanced operations 86 5 1 Volume rebuild 86 5 2 RG migration 88 5 3 VD extension 89 5 4 Snapshot 89 5 4 1 Create snapshot volume 90 5 4 2 Auto snapshot 91 5 4 3 Rollback 92 5 4 4 Snapshot constraint 93 5 5 Disk roaming 95 5 6 VD clone 95 5 7 SAS JBOD expansion 103 5 7 1 Connecting JBOD 103 5 7 2 Upgrade firmware of JBOD 105 5 8 M...

Page 5: ...5 6 2 Event notifications 125 Appendix 133 A Certification list 133 B Microsoft iSCSI initiator 136 C From Single controller to Dual Controller 142 ...

Page 6: ...cation It provides consistent and instant copies of data volumes without any system downtime Snapshot on the box can keep up to 32 snapshots for one logical volume Rollback feature is provided for restoring the previous snapshot data easily while continuously using the volume for further data access The data access which includes read write is working as usual without any impact to end users The o...

Page 7: ...pansion port Green Auto disk spin down Advanced cooling RAID Level RAID 0 1 0 1 3 5 6 10 30 50 60 and JBOD N way mirror Compatibility Support multiple OSes applications 10GbE NIC 10GbE iSCSI HBA and etc Virtualization VMWare Hyper V Citrix Data Protection Snapshot Read only and Writeable Storage base Replication Connection Availability Load balancing and failover support on the 4 x 10GbE iSCSI por...

Page 8: ...D level attribute VD Virtual Disk Each RD could be divided into several VDs The VDs from one RG have the same RAID level but may have different volume capacity LUN Logical Unit Number A logical unit number LUN is a unique identifier which enables it to differentiate among separate devices each one is a logical unit GUI Graphic User Interface RAID cell When creating a RAID group with a compound RAI...

Page 9: ...ted spare disks for any rebuilding purpose GS Global Spare disks GS is shared for rebuilding purpose If some RGs need to use the global spare disks for rebuilding they could get the spare disks out from the common spare disks pool for such requirement DG DeGraded mode Not all of the array s member disks are functioning but the array is able to respond to application read and write requests to its ...

Page 10: ...dent hardware vendors IHVs and system vendors Part 4 10GbE SFP Small Form factor Pluggable is a compact hot pluggable transceiver used for both Fibre Channel and 10GbE CX4 10GBASE CX4 a copper based 10 Gigabit Ethernet PHY 1 2 2 RAID levels There are different RAID levels with different degree of data protection data availability and performance to host environment The description of RAID levels a...

Page 11: ...at least eight hard drives JBOD The abbreviation of Just a Bunch Of Disks JBOD needs at least one hard drive 1 2 3 Volume relationship The below graphic is the volume structure which D LINK has designed It describes the relationship of RAID components One RG RAID group consists of a set of VDs Virtual Disk and owns one RAID level attribute Each RG can be divided into several VDs The VDs in one RG ...

Page 12: ... for security data replication multi path and high availability Storage protocol such as iSCSI has two ends in the connection These ends are initiator and target In iSCSI we call them iSCSI initiator and iSCSI target The iSCSI initiator requests or initiates any iSCSI communication It requests all SCSI operations like read or write An initiator is usually located on the host side either an iSCSI H...

Page 13: ...or please visit Open iSCSI project for most update information Linux iSCSI sfnet and Open iSCSI projects merged in April 11 2005 Open iSCSI website http www open iscsi org Open iSCSI README http www open iscsi org docs README Features http www open iscsi org cgi bin wiki pl Roadmap Support Kernels http www open iscsi org cgi bin wiki pl Supported_Kernels Google groups http groups google com group ...

Page 14: ...DDRII 533 DIMM 3 Hardware iSCSI off load engine 4 2 x UARTs serial console management and UPS 5 Fast Ethernet port for web based management use 6 Backend 12 x SAS or SATA II drive connections 7 Front end 2 x 10GbE iSCSI ports per controller 8 Hot pluggable BBM 9 SAS JBOD expansion port for expansion 10 Multiplexer board support for SATA drives optional on Dual controller mode 11 Two power supplies...

Page 15: ...ent via dedicated serial port 3 Fan speed monitors 4 Redundant power supply monitors 5 Voltage monitors 6 Thermal sensors for both RAID controller and enclosure 7 Status monitors for D LINK SAS JBODs Management interface 1 Management UI via serial console SSH telnet HTTP Web UI secured Web HTTPS 2 Notification via Email SNMP trap Browser pop up windows Syslog Windows Messenger 3 iSNS support 4 DHC...

Page 16: ...nment AC input 100 240V 7A 4A 500W with PFC Auto Switching DC output 3 3V 21A 5V 39A 12V 30A Operating Temperature 0 to 40 Relative Humidity 5 to 95 non condensing Dimensions 2U 12 bay 19 inch rackmount chassis 442 8mm x 500 6mm x 88 0mm W x D x H 1 4 2 FCC and CE statements FCC statement This device has been shown to be in compliance with and was tested in accordance with the measurement procedur...

Page 17: ...5022 EN55024 UL statement Rack Mount Instructions The following or similar rack mount instructions are included with the installation instructions A Elevated Operating Ambient If installed in a closed or multi unit rack assembly the operating ambient temperature of the rack environment may be greater than room ambient Therefore consideration should be given to installing the equipment in an enviro...

Page 18: ...ews should be tightened with a tool after both initial installation and subsequent access to the panel Warning Remove all power supply cords before service This equipment intended for installation in restricted access location Access can only be gained by SERVICE PERSONS or by USERS who have been instructed about the reasons for the restrictions applied to the location and about any precautions th...

Page 19: ...rnet NIC or iSCSI HBA 2 CAT 5e or CAT 6 network cables for management port and iSCSI data ports 3 Prepare storage system configuration plan 4 Prepare management port and iSCSI data ports network information When using static IP please prepare static IP addresses subnet mask and default gateway 5 10GbE switches recommended Or 10GbE switches with LCAP Trunking optional 6 CHAP security information in...

Page 20: ...t logs are saved to drives in these slots If no drives are fitted the event logs will be lost in the event of a system reboot 2 3 2 Front LED lights There are three LED lights on the left frame bar Figure 2 3 2 1 LED lights description Power LED Green Power on Off Power off Status LED Red System is failure Off System is good Access LED Blue Host is accessing Off Host is no access ...

Page 21: ...u purchased a solution populated with drives To install SAS or SATA drives with no Bridge Board use the front mounting holes To install SATA drives with Bridge Board DSN 654 fit the Bridge Board first Then install the drive using the rear mounting holes ...

Page 22: ...D power LED Green HDD is inserted and good Off No HDD HDD access LED Blue blinking HDD is accessing Off No HDD HDD tray handhold Latch for tray kit removal 2 3 4 Rear view Figure 2 3 4 1 DSN 6410 with DSN 640 SFP PSU and Fan module description ...

Page 23: ...23 Controller 2 only on DSN 6410 with DSN 640 Controller 1 Power supply unit PSU1 Fan module FAN1 FAN2 Power supply unit PSU2 Fan module FAN3 FAN4 ...

Page 24: ...e link is established and packets are being transmitted along with any receive activity LED from right to left Controller Health LED Green Controller status normal or in the booting Red Other than above status Master Slave LED only for DSN 6410 with DSN 640 Green Master controller Off Slave controller Dirty Cache LED Orange Data on the cache waiting for flush to disks Off No data on the cache BBM ...

Page 25: ...ache anymore Management port Console port RS 232 port for UPS SAS JBOD expansion port 2 4 Install battery backup module To install the IP SAN storage with a battery backup module please follow the procedure Figure 2 4 1 1 BBM Battery Backup Module supports hot pluggable Regardless of the IP SAN storage is turned on or off 2 Remove the cover of BBM 3 Insert the BBM 4 Tighten the BBM and use screws ...

Page 26: ...owing topology and have all the connections ready Figure 2 5 1 DSN 6410 with DSN 640 Figure 2 5 2 DSN 6410 1 Setup the hardware connection before power on servers Connect console cable management port cable and iSCSI data port cables in advance ...

Page 27: ...get twice both controller 1 and controller 2 and then MPIO should be setup automatically only for DSN 6410 with DSN 640 Tips iSNS server is recommended for dual controller system For better data service availability all the connections among host servers 10GbE switches and the dual controllers are recommended as redundant as below Figure 2 5 3 only for DSN 6410 with DSN 640 The following topology ...

Page 28: ...t PC directly 2 Using RS 232 cable for UPS gray color phone jack to DB9 male to connect from controller to APC Smart UPS serial cable DB9 female side and then connect the serial cable to APC Smart UPS Caution It may not work when connecting the RS 232 cable for UPS gray color phone jack to DB9 male to APC Smart UPS directly ...

Page 29: ...ate 115200 8 data bit no parity 1 stop bit and no flow control Terminal type vt100 Login name admin Default password 123456 3 1 2 Remote control SSH secure shell software is required for remote login The SSH client software is available at the following web site SSH Tectia Client http www ssh com PuTTY http www chiark greenend org uk Host name 192 168 0 32 Please check the DHCP address first on LC...

Page 30: ...P open the browser and enter http 192 168 0 32 And then it will pop up a dialog for authentication Figure 3 1 4 1 User name admin Default password 123456 After login choose the functions which lists on the left side of window to make any configuration Figure 3 1 4 2 There are seven indicators and three icons at the top right corner Figure 3 1 4 3 ...

Page 31: ...normal Red voltage is abnormal UPS light Green UPS works well Red UPS fails Fan light Green Fan works well Red Fan fails Power light Green Power works well Red Power fails Dual controller light Green Both controller 1 and controller 2 are present and well Orange The system is degraded and there is only 1 controller alive and well Return to home page Logout the management web UI ...

Page 32: ...ations will disable it 3 2 How to use the system quickly The following methods will describe the quick guide to use this IP SAN storage 3 2 1 Quick installation Please make sure that there are some free drives installed in this system SAS drivers are recommended Please check the hard drive details in Volume configuration Physical disk Figure 3 2 1 1 Step1 Click the Quick installation menu item fol...

Page 33: ...33 Figure 3 2 1 2 Step2 Confirm the management port IP address and DNS and then click Next Figure 3 2 1 3 Step 3 Set up the data port IP and click Next ...

Page 34: ...34 Figure 3 2 1 4 Step 4 Set up the RAID level and volume size and click Next Figure 3 2 1 5 Step 5 Check all items and click Finish ...

Page 35: ...find that some HDDs are available free status The result is using smarter policy designed by D LINK It gives user 1 Biggest capacity of RAID level for user to choose and 2 The fewest disk number for RAID level volume size E g user chooses RAID 5 and the controller has 12 200G 4 80G HDDs inserted If we use all 16 HDDs for a RAID 5 and then the maximum size of volume is 1200G 80G 15 By the wizard we...

Page 36: ...36 Figure 3 2 2 1 Step 2 Please select the combination of the RG capacity or Use default algorithm for maximum RG capacity After RG size is chosen click Next Figure 3 2 2 2 ...

Page 37: ...default number Then click Next Figure 3 2 2 3 Step 4 Confirmation page Click Finish if all setups are correct Then a VD will be created Step 5 Done The system is available now Figure 3 2 2 4 Figure 3 2 2 4 A virtual disk of RAID 0 is created and is named by system itself ...

Page 38: ...elete CHAP account Create Modify user information Delete Volume configuration Physical disk Set Free disk Set Global spare Set Dedicated spare Upgrade Disk Scrub Turn on off the indication LED More information RAID group Create Migrate Move Activate Deactivate Parity check Delete Set preferred owner Set disk property More information Virtual disk Create Extend Parity check Delete Set property Atta...

Page 39: ...ort Import Export Import file Reboot and shutdown Reboot Shutdown Quick installation Step 1 Step 2 Step 3 Step 4 Confirm Volume creation wizard Step 1 Step 2 Step 3 Confirm 4 2 System configuration System configuration is designed for setting up the System setting Network setting Login setting Mail setting and Notification setting Figure 4 2 1 4 2 1 System setting System setting can setup system n...

Page 40: ...turn on the system indication LED Click again to turn off 4 2 2 Network setting Network setting is for changing IP address for remote administration usage There are 3 options DHCP Get IP address from DHCP server BOOTP Get IP address from BOOTP server and static IP The default setting is DHCP User can change the HTTP HTTPS and SSH port number when the default port number is not allowed on host serv...

Page 41: ...nt multiple users access the same system in the same time 1 Auto logout The options are 1 Disabled 2 5 minutes 3 30 minutes 4 1 hour The system will log out automatically when user is inactive for a period of time 2 Login lock Disabled or Enabled When the login lock is enabled the system allows only one user to login or modify system settings ...

Page 42: ...ation Some mail servers would check Mail from address and need authentication for anti spam Please fill the necessary fields and click Send test mail to test whether email functions are available User can also select which levels of event logs are needed to be sent via Mail Default setting only enables ERROR and WARNING event logs Please also make sure the DNS server IP is well setup so the event ...

Page 43: ...1 4 2 5 Notification setting Notification setting can set up SNMP trap for alerting via SNMP pop up message via Windows messenger not MSN alert via syslog protocol and event log filter for web UI and LCM notifications ...

Page 44: ...must enable the service Messenger in Windows Start Control Panel Administrative Tools Services Messenger and then event logs can be received It allows up to 3 messenger addresses User can choose the event log levels and default setting enables the WARNING and ERROR event logs Using System log server user can choose the facility and the event log level The default port of syslog is 514 The default ...

Page 45: ...10 6410w 640 has two 10GbE ports on each controller to transmit data Each of them must be assigned to an IP address and be set up in multi homed mode or the link aggregation trunking mode has been set up When there are multiple data ports setting up in link aggregation or trunking mode all the data ports share single address Figure 4 3 1 1 IP settings User can change IP address by checking the gra...

Page 46: ...P The following is the description of multi homed trunking LACP functions 1 Multi homed Default mode Each of iSCSI data port is connected by itself and is not link aggregation and trunking This function is also for Multipath functions Select this mode can also remove the setting of Trunking LACP in same time 2 Trunking defines the use of multiple iSCSI data ports in parallel to increase the link s...

Page 47: ... 3 1 3 Figure 4 3 1 3 There are 2 iSCSI data ports on each controller select at least two NICs for link aggregation Figure 4 3 1 4 For example LAN1 and LAN2 are set as Trunking mode To remove Trunking LACP setting check the gray button of LAN port click Delete link aggregation Then it will pop up a message to confirm Ping host User can ping the corresponding host data port from the target click Pi...

Page 48: ...col allows automated discovery management and configuration of iSCSI devices on a TCP IP network Using iSNS it needs to install an iSNS server in SAN Add an iSNS server IP address into iSNS server lists in order that iSCSI initiator service can send queries The entity name can be changed Figure 4 3 2 1 4 3 3 Node Node can view the target name for iSCSI initiator DSN 6410 6410w 640 supports up to 3...

Page 49: ... in which the authentication server sends the client a key to be used for encrypting the username and password CHAP enables the username and password to transmit in an encrypted form for protection To use CHAP authentication please follow the procedures 1 Select one of 32 default nodes from one controller 2 Check the gray button of OP column click Authenticate 3 Select CHAP Figure 4 3 3 2 4 Click ...

Page 50: ...used It s a multi option it can be one or more If choosing none CHAP can not work Figure 4 3 3 4 8 Click OK 9 In Authenticate of OP page select None to disable CHAP Change portal Users can change the portals belonging to the device node of each controller 1 Check the gray button of OP column next to one device node 2 Select Change portal 3 Choose the portals for the controller 4 Click OK to confir...

Page 51: ...Tips After setting CHAP the initiator in host should be set with the same CHAP account Otherwise user cannot login 4 3 4 Session Session can display current iSCSI session and connection information including the following items 1 TSIH target session identifying handle 2 Host Initiator Name 3 Controller Target Name 4 InitialR2T Initial Ready to Transfer 5 Immed data Immediate data 6 MaxDataOutR2T M...

Page 52: ...t can list all connection s of the session Figure 4 3 4 2 Figure 4 3 4 2 iSCSI Connection 4 3 5 CHAP account CHAP account can manage a CHAP account for authentication DSN 6410 with DSN 640 6410 can create multiple CHAP accounts To setup CHAP account please follow the procedures 1 Click Create 2 Enter User Secret and Confirm secret again Node can be selected here or later If selecting none it can b...

Page 53: ... 2 4 Click Delete to delete CHAP account 4 4 Volume configuration Volume configuration is designed for setting up the volume configuration which includes Physical disk RAID group Virtual disk Snapshot Logical unit and Replication Figure 4 4 1 ...

Page 54: ...ion can be selected and inactive functions show up in gray color and cannot be selected For example set PD slot number 4 to dedicated spare disk Step 1 Check to the gray button of PD 4 select Set Dedicated spare it will link to next page Figure 4 4 1 1 Step 2 If there is any RG which is in protected RAID level and can be set with dedicate spare disk select one RG and then click Submit Figure 4 4 1...

Page 55: ...n Slot The position of a hard drive The button next to the number of slot shows the functions which can be executed Size GB MB Capacity of hard drive The unit can be displayed in GB or MB RG Name RAID group name Status The status of hard drive Online the hard drive is online Rebuilding the hard drive is being rebuilt Transition the hard drive is being migrated or is replaced by another disk when r...

Page 56: ...r Serial Hard drive serial number Type Hard drive type SATA SATA disk SATA2 SATA II disk SAS SAS disk Write cache Hard drive write cache is enabled or disabled Default is Enabled Standby HDD auto spin down to save power Default is Disabled Readahead This feature makes data be loaded to disk s buffer in advance for further use Default is Enabled Command queuing Newer SATA and most SCSI disks can qu...

Page 57: ...example to create a RG Step 1 Click Create enter Name choose RAID level click Select PD to select PD assign the RG s Preferred owner Then click OK The Write Cache option is to enable or disable the write cache option of hard drives The Standby option is to enable or disable the auto spin down function of hard drives when this option is enabled and hard drives have no I O access after certain perio...

Page 58: ...executed Name RAID group name Total GB MB Total capacity of this RAID group The unit can be displayed in GB or MB Free GB MB Free capacity of this RAID group The unit can be displayed in GB or MB PD The number of physical disks in a RAID group VD The number of virtual disks in a RAID group Status The status of RAID group Online the RAID group is online Offline the RAID group is offline Rebuild the...

Page 59: ... the RAID level of a RAID group Please refer to next chapter for details Move Move the member disks of RAID group to totally different physical disks Activate Activate the RAID group after disk roaming it can be executed when RG status is offline This is for online disk roaming purpose Deactivate Deactivate the RAID group before disk roaming it can be executed when RG status is online This is for ...

Page 60: ...D group detail information 4 4 3 Virtual disk Virtual disk can view the status of each Virtual disk create and modify virtual disks The following is an example to create a VD Step 1 Click Create enter Name select RAID group from RG name enter required Capacity GB MB change Stripe height KB change Block size B change Read Write mode set virtual disk Priority select Bg rate Background task priority ...

Page 61: ...system when creating VD the erase process will stop Step 2 Confirm page Click OK if all setups are correct Figure 4 4 3 2 Figure 4 4 3 2 Create a VD named VD 01 from RG R0 The second VD is named VD 02 it s initializing Step 3 Done View Virtual disk page ...

Page 62: ...rity 4 3 2 1 0 Default value is 4 The higher number the background priority of a VD is the more background I O will be scheduled to execute Status The status of virtual disk Online The virtual disk is online Offline The virtual disk is offline Initiating The virtual disk is being initialized Rebuild The virtual disk is being rebuilt Migrate The virtual disk is being migrated Rollback The virtual d...

Page 63: ...will become Optimal R Ratio of initializing or rebuilding RAID RAID level LUN Number of LUN s that virtual disk is attached to Snapshot GB MB The virtual disk size that is used for snapshot The number means Used snapshot space Total snapshot space The unit can be displayed in GB or MB Snapshot Number of snapshot s that have been taken RG name The RG name of the virtual disk VD operation descriptio...

Page 64: ...e more background I O will be scheduled to execute Read ahead Enabled Enable disk read ahead Default Disabled Disable disk read ahead AV media mode Enabled Enable AV media mode for optimizing video editing Disabled Disable AV media mode Default Type RAID the virtual disk is normal Default Backup the virtual disk is for clone usage Attach LUN Attach to a LUN Detach LUN Detach to a LUN List LUN List...

Page 65: ...the virtual disk List snapshot List all snapshots of the virtual disk More information Show virtual disk detail information 4 4 4 Snapshot Snapshot can view the status of snapshot create and modify snapshots Please refer to next chapter for more detail about snapshot concept The following is an example to take a snapshot Step 1 Create snapshot space In Volume configuration Virtual disk Check to th...

Page 66: ... 4 Expose the snapshot VD Check to the gray button next to the Snapshot VD number click Expose Enter a capacity for snapshot VD If size is zero the exposed snapshot VD will be read only Otherwise the exposed snapshot VD can be read written and the size will be the maximum capacity for writing Figure 4 4 4 4 Figure 4 4 4 5 Figure 4 4 4 5 This is the snapshot list of VD 01 There are two snapshots Sn...

Page 67: ...t N A The snapshot is normal Replicated The snapshot is for clone or replication usage Abort The snapshot is over space and abort Health The health of snapshot Good The snapshot is good Failed The snapshot fails Exposure Snapshot VD is exposed or not Right The right of snapshot Read write The snapshot VD can be read write Read only The snapshot VD is read only LUN Number of LUN s that snapshot VD ...

Page 68: ...ttached logical unit number s of each VD User can attach LUN by clicking the Attach Host must enter with an iSCSI node name for access control or fill in wildcard which means every host can access the volume Choose LUN number and permission and then click OK Figure 4 4 5 1 Figure 4 4 5 2 Figure 4 4 5 2 r0 is attached to LUN 0 and every host can access r1 is attached to LUN 1 ...

Page 69: ...in this field can replace any word can replace only one character For example iqn host iqn host1 and iqn host2 are accepted iqn host iqn host1 and iqn host12345 are accepted This field can not accept comma so iqn host1 iqn host2 stands a long string not 2 iqns 4 4 6 Example The following is an example to create volumes This example is to create two VDs and set a global spare disk Example This exam...

Page 70: ...list click Select PD to choose the RAID physical disks then click OK 4 Check the setting Click OK if all setups are correct 5 Done A RG has been created Figure 4 4 6 2 Figure 4 4 6 2 Creating a RAID 5 with 3 physical disks named RG R5 Step 2 Create VD Virtual Disk To create a data user volume please follow the procedures ...

Page 71: ...low the above steps to create another VD Figure 4 4 6 4 Figure 4 4 6 4 Creating VDs named VD R5 1 and VD R5 2 from RAID group RG R5 the size of VD R5 1 is 50GB and the size of VD R5 2 is 64GB There is no LUN attached Step 3 Attach a LUN to a VD There are 2 methods to attach a LUN to a VD 1 In Volume configuration Virtual disk check the gray button next to the VD number click Attach LUN 2 In Volume...

Page 72: ...lick OK 3 Done Figure 4 4 6 6 Tips The matching rules of access control are from the LUNs created time the earlier created LUN is prior to the matching rules Step 4 Set a global spare disk To set a global spare disk please follow the procedures 1 Select Volume configuration Physical disk 2 Check the gray button next to the PD slot click Set global space 3 Global spare status is shown in Usage colu...

Page 73: ...ick Detach There will pop up a confirmation page 2 Choose OK 3 Done Step 7 Delete a VD Virtual Disk To delete the virtual disk please follow the procedures 1 Select Volume configuration Virtual disk 2 Check the gray button next to the VD number click Delete There will pop up a confirmation page click OK 3 Done Then the VD is deleted Tips When deleting VD directly the attached LUN s of to this VD w...

Page 74: ...lick Set Free disk Step 10 Done all volumes have been deleted 4 5 Enclosure management Enclosure management allows managing enclosure information including Hardware monitor UPS SES and S M A R T For the enclosure management there are many sensors for different purposes such as temperature sensors voltage sensors hard disk status fan sensors power sensors and LED status Due to the different hardwar...

Page 75: ...75 4 5 1 Hardware monitor Hardware monitor can view the information of current voltages and temperatures Figure 4 5 1 1 ...

Page 76: ...ous 3 minutes auto shutdown will be triggered immediately 2 The core processor temperature limit is 80 The iSCSI NIC temperature limit is 65 The SAS expandor and SAS controller temperature limit is 65 3 If the high temperature situation doesn t last for 3 minutes system will not trigger auto shutdown 4 5 2 UPS UPS can set up UPS Uninterruptible Power Supply Figure 4 5 2 1 Figure 4 5 2 1 Without UP...

Page 77: ...er failure occurs and system power can not recover the system will shutdown Setting delay to 0 will disable the function Shutdown UPS Select ON when power is gone UPS will shutdown by itself after the system shutdown successfully After power comes back UPS will start working and notify system to boot up OFF will not Status The status of UPS Detecting Running Unable to detect UPS Communication lost...

Page 78: ... take actions before possible drive failure S M A R T measures many attributes of the hard drive all the time and inspects the properties of hard drives which are close to be out of tolerance The advanced notice of possible hard drive failure can allow users to back up hard drive or replace the hard drive This is much better than hard drive crash when it is writing data or rebuilding a failed hard...

Page 79: ... to synchronized firmware versions on both controllers Reset to factory default to reset all controller configuration values to factory settings Import and export to import and export all controller configuration to a file and Reboot and shutdown to reboot or shutdown the system Figure 4 6 1 4 6 1 System information System information can display system information including CPU type installed sys...

Page 80: ...rs is different Single Single controller mode 4 6 2 Event log Event log can view the event messages Check the checkbox of INFO WARNING and ERROR to choose the level of event log display Click Download button to save the whole event log as a text file with file name log ModelName SerialNumber Date Time txt Click Clear button to clear all event logs Click Mute button to stop alarm if system alerts F...

Page 81: ...t event log is on the first top page The event logs are actually saved in the first four hard drives each hard drive has one copy of event log For one system there are four copies of event logs to make sure users can check event log any time when there are failed disks ...

Page 82: ...D firmware the steps are the same as controller firmware but choosing number of JBOD first Controller mode can be modified to dual or single here If the IP SAN storage has one controller only switch this mode to Single This mode indicates singel upgradable Enter the MAC address displayed in System configuration Network setting such as 001378xxxxxx case insensitive and then click Confirm At last it...

Page 83: ... default 192 168 0 32 4 6 6 Import and export Import and export allows user to save system configuration values export and apply all configuration import For the volume configuration setting the values are available in export and not available in import which can avoid confliction date deleting between two IP SAN storages which mean if one system already has valuable volumes in the disks and user ...

Page 84: ...ns will be replaced 4 6 7 Reboot and shutdown Reboot and shutdown can Reboot and Shutdown the system Before power off it s better to execute Shutdown to flush the data from cache to physical disks The step is necessary for data protection Figure 4 6 7 1 4 7 Home Logout Mute In the right upper corner of web UI there are 3 individual icons Home Logout and Mute Figure 4 7 1 4 7 1 Home Click Home to r...

Page 85: ...85 For security reason please use Logout to exit the web UI To re login the system please enter username and password again 4 7 3 Mute Click Mute to stop the alarm when error occurs ...

Page 86: ... user only removes the failed disk and plugs the same failed disk in the same slot again the auto rebuild will start running But rebuilding in the same failed disk may impact customer data if the status of disk is unstable D LINK suggests all customers not to rebuild in the failed disk for better data protection 2 When there is enough global spare disk s or dedicated spare disk s for the degraded ...

Page 87: ...s two hard drives failure or unplugging If it needs to rebuild two hard drives at the same time it will rebuild the first one then the other in sequence RAID 0 1 Mirroring of RAID 0 volumes RAID 0 1 allows two hard drive failures or unplugging but at the same array RAID 10 Striping over the member of RAID 1 volumes RAID 10 allows two hard drive failure or unplugging but in different arrays RAID 30...

Page 88: ... not and appear a warning message of Sure to migrate to a lower protection array Figure 5 2 2 4 Double check the setting of RAID level and RAID PD slot If there is no problem click OK 5 Finally a confirmation page shows the detail of RAID information If there is no problem click OK to start migration System also pops up a message of Warning power lost during migration may cause damage of data to g...

Page 89: ... VD extension must be larger than original Caution VD Extension cannot be executed during rebuilding or migration 5 4 Snapshot Snapshot on the box captures the instant state of data in the target volume in a logical sense The underlying logic is Copy on Write moving out the data which would be written to certain location where a write action occurs since the time of data capture The certain locati...

Page 90: ...ize for snapshot The minimum size is suggested to be 20 of VD size and then click OK It will go back to the VD page and the size will show in snapshot column It may not be the same as the number entered because some size is reserved for snapshot internal usage There will be 2 numbers in Snapshot column These numbers mean Used snapshot space and Total snapshot space 4 There are two methods to take ...

Page 91: ...is exposed as read write 1 There are two methods to clean all snapshots In Volume configuration Virtual disk check the gray button next to the VD number click Cleanup snapshot Or in Volume configuration Snapshot click Cleanup 2 Cleanup snapshot will delete all snapshots of the VD and release snapshot space 5 4 2 Auto snapshot The snapshot copies can be taken manually or by schedule such as hourly ...

Page 92: ...llback The data in snapshot VD can rollback to original VD Please follow the procedures 1 Select Volume configuration Snapshot 2 Check the gray button next to the Snap VD number which user wants to rollback the data click Rollback 3 Done the data in snapshot VD is rollback to original VD Caution Before executing rollback it is better to dismount file system for flushing data from cache to disks in...

Page 93: ...f snapshot Please refer to the following diagram When user modifies the data from host the data will pass through file system and memory of the host write caching Then the host will flush the data from memory to physical disks no matter the disk is local disk IDE or SATA DAS SCSI or SAS or SAN fibre or iSCSI From the viewpoint of storage device it can not control the behavior of host side This cas...

Page 94: ...ace of user defined There are two different situations 1 If there are two or more snapshots existed the system will try to remove the oldest snapshots to release more space for the latest snapshot until enough space is released 2 If there is only one snapshot existed the snapshot will fail Because the snapshot space is run out For example there are two or more snapshots existed on a VD and the lat...

Page 95: ...k the firmware version of two systems first It is better that either both systems have the same firmware version or system 2 firmware version is newer 2 All physical disks of the RG should be moved from system 1 to system 2 together The configuration of both RG and VD will be kept but LUN configuration will be cleared in order to avoid conflict with system 2 s original setting 5 6 VD clone The use...

Page 96: ... type of backup target needs to be set as BACKUP Figure 5 6 2 3 Here are the objects a Source VD and a Target VD Before starting clone process it needs to deploy the VD Clone rule first Click Configuration Figure 5 6 3 4 There are three clone configurations describe on the following ...

Page 97: ... snapshot space When the used snapshot space achieves its threshold system will automatically take a clone snapshot and start VD clone process The purpose of threshold could prevent the incremental copy fail immediately when running out of snapshot space For example the default threshold is 50 The system will check the snapshot space every hour When the snapshot space is used over 50 the system wi...

Page 98: ...estart the task after an hour This task will start a full copy Caution The default snapshot space allocated by the IP SAN storage is two times the size of source virtual disk That is the best value of D LINK s suggestion If user sets snapshot space by manually and lower than the default value user should take the risk if the snapshot space is not enough and VD clone job will fail 5 After deploying...

Page 99: ...n set Figure 5 6 10 8 Click Start clone the clone process will start Figure 5 6 11 9 The default setting will create a snapshot space automatically which the capacity is double size of the VD space Before starting clone system will initiate the snapshot space ...

Page 100: ...11 Click Schedule clone to set up the clone by schedule Figure 5 6 14 12 There are Set Clone schedule and Clear Clone schedule in this page Please remember that Threshold and Restart the task an hour later if failed options in VD configuration will take effect after clone schedule has been set ...

Page 101: ... it will get a warning message This is not enough of snapshot space for the operation At this time the user needs to clean up the snapshot space in order to operate the clone process Each time the clone snapshot failed it means that the system loses the reference value of incremental data So it will start a full copy at next clone process When running out of snapshot space the flow diagram of VD c...

Page 102: ... with fully copy Done Check threshold every hour Run out of snapshot space Run out of snapshot space Manually start clone by user Auto delete old clone snapshot Manually release snapshot space Restart clone by user Auto restart an hour later Figure 5 6 16 ...

Page 103: ...ected it will be displayed in Show PD for of Volume configuration Physical disk For example Local JBOD 1 D LINK DSN 6020 JBOD 2 D LINK DSN 6020 etc Local means disks in local controller and so on The hard drives in JBOD can be used as local disks Figure 5 7 1 1 Figure 5 7 1 1 Display all PDs in JBOD 1 Enclosure management Hardware monitor can display the hardware status of SAS JBODs ...

Page 104: ...5 7 1 3 Enclosure management S M A R T can display S M A R T information of all PDs including Local and all SAS JBODs Figure 5 7 1 4 Figure 5 7 1 4 Disk S M A R T information of JBOD 1 although S M A R T supports SATA disk only ...

Page 105: ... is the maximum JBOD numbers and maximum HDD numbers with different chassises can be cascaded RAID Storage System Dual controllers Dual JBOD DSN 6120 DSN 6020 no 4 Max HDD no 60 5 7 2 Upgrade firmware of JBOD To upgrade the firmware of JBOD please follow the procedures 1 Please login IP SAN storage as username admin first and then go System maintenance Upgrade Figure 5 7 2 1 2 Choose a JBOD which ...

Page 106: ...sion to the target can be established using different NICs network infrastructure and target ports If one session fails then another session can continue processing I O without interruption to the application Figure 5 8 1 2 MC S MC S Multiple Connections per Session is a feature of iSCSI protocol which allows combining several connections inside a single session for performance and failover purpos...

Page 107: ...SI session to manage load balance and failover Notice that iSCSI connections and sessions are different than TCP IP connections and sessions The above figures describe the difference between MPIO and MC S There are some considerations when user chooses MC S or MPIO for multipathing 1 If user uses hardware iSCSI off load HBA then MPIO is the only one choice 2 If user needs to specify different load...

Page 108: ...ally LACP port can be defined as active or passive D LINK IP SAN Storage implements it as active mode which means that LACP port sends LACP protocol packets automatically Please notice that using the same configurations between D LINK controller and gigabit switch The usage occasion of LACP A It s necessary to use LACP in a network environment of multiple switches When adding new devices LACP will...

Page 109: ...connect the link with storage device 5 10 Dual controllers only for DSN 6410 with DSN 640 5 10 1 Perform I O Please refer to the following topology and have all the connections ready To perform I O on dual controllers server host should setup MPIO MPIO policy will keep I O running and prevent fail connection with single controller failure ...

Page 110: ... owner the default owner is controller 1 To change the RG ownership please follow the procedures 1 Select Volume configuration RAID group 2 Check the gray button next to the RG name click Set preferred owner 3 The ownership of the RG will be switched to the other controller Figure 5 10 2 1 ...

Page 111: ...troller mode The firmware of two controllers is different or the size of memory of two controllers is different In this stage only master controller can work and I O will force to write through for protecting data 4 Single Single controller mode In the stage the controller must stay in slot A multiplexer boards for SATA drives are not necessary The differences between single and degraded are descr...

Page 112: ...one is very important Setup the Replication port on the source IP SAN storage The Replication uses the last iSCSI port on the controller to replicate the data When the iSCSI is configured as Replication port it is no longer available for the host to connected as iSCSI port until it is configured as the normal iSCSI port again 1 In the operation menu of the last iSCSI port on the controller select ...

Page 113: ...P SAN storage 1 Before creating the replication job on the source IP SAN storage user has to create a virtual disk on the target IP SAN storage and set the type of the virtual disk as BACKUP Figure 5 11 3 2 The backup virtual disk needs to be attached to a LUN ID before creating replication job And the virtual disk of BACKUP type can only be attached with Read only permission to prevent it from be...

Page 114: ... a new replication job Figure 5 11 5 2 Select the source virtual disk which will be replicated to the target IP SAN storage and click Next Figure 5 11 6 Tips If the message displays that there is not enough space for creation please refer to the section of Configure the snapshot space below for solution 3 Enter the IP address of iSCSI port on controller 1 of the target IP SAN storage Click Next to...

Page 115: ... data replication User has to log on the iSCSI node to create the iSCSI connection for the data transmission Enter the CHAP information if necessary and select the target node to log no Click Next to continue Figure 5 11 8 5 Choose the backup virtual disk and click Next ...

Page 116: ...listed on the Replication page Figure 5 11 10 Run the replication job 1 Click the OP button on the replication job to open operation menu Click Start to run the replication job Figure 5 11 11 2 Click Start again to confirm the execution of the replication job ...

Page 117: ...information and the progress is expressed by percentage Figure 5 11 13 Create multi path on the replication job 1 Click the Create multi path in the operation menu of the replication job Figure 5 11 14 2 Enter the IP of iSCSI port on controller 2 of the target IP SAN storage ...

Page 118: ...118 Figure 5 11 15 3 Select the iSCSI node to log on and click Next Figure 5 11 16 4 Choose the same target virtual disk and click Next ...

Page 119: ...17 5 A new target will be added in this replication job as a redundancy path Figure 5 11 18 Configure the replication job to run by schedule 1 Click Schedule in the operation menu of the replication job Figure 5 11 19 ...

Page 120: ...SAN storage will allocate snapshot space for the source virtual disk automatically when the replication job is created The default snapshot space allocated by the IP SAN storage is two times the size of source virtual disk If the free space of the RAID group which the source virtual disk resides in is less than double size of the source virtual disk the replication job will fail and pops up the er...

Page 121: ... running out of snapshot space For example the default threshold is 50 and the system will check the snapshot space every hour When the snapshot space is used over 50 the IP SAN storage will automatically replicate data from the source virtual disk to the target virtual disk Next time when the rest snapshot space has been used over 50 in other words the total snapshot space has been used over 75 t...

Page 122: ...VLAN ID matches that of switch port VLAN ID is a 12 bit number PCP Priority Code Point is a 3 bit number and reserved for QoS VLAN IDs range from 2 to 4094 with 0 1 and 4095 reserved for special purposes they are different from switches to switches Our PCP definition comply with IEEE 802 1p protocol ranging from 0 to 7 with 0 as the default value In normal cases you don t need to set PCP value Usi...

Page 123: ...or LAN2 is set properly Figure 5 12 3 Assign VLAN ID to LAG Trunking or LACP 1 After creating LAG press OP button next to the LAG and select Set VLAN ID Figure 5 12 4 2 Put in the VLAN ID and click ok VLAN ID of LAG 0 is properly set ...

Page 124: ...ove VLAN ID You need to repeat step 1 and step 2 to set VLAN ID for the aggregation group Assign VLAN ID to replication port Please consult figure 5 11 3 of 5 11 Replication section for details Always make sure correct VLAN IDs are assigned to the correct network ports iSCSI switch and host NIC to ensure valid connections ...

Page 125: ...sk slot read block error ERROR HDD write error Disk slot write block error ERROR HDD error Disk slot is disabled ERROR HDD IO timeout Disk slot gets no response INFO PD upgrade started PD string starts upgrading firmware process INFO PD upgrade finished PD string finished upgrading firmware process WARNING PD upgrade failed PD string upgrade firmware failed HW events Level Type Description WARNING...

Page 126: ...tring is not present ERROR Fan over speed Fan string is over speed WARNING Thermal level 1 System temperature string is higher ERROR Thermal level 2 System Overheated string ERROR Thermal level 2 shutdown System Overheated string The system will auto shutdown immediately ERROR Thermal level 2 CTR shutdown The controller will auto shutdown immediately reason Overheated string WARNING Thermal ignore...

Page 127: ...ame has been LUN attached INFO VD attach LUN fail Failed to attach LUN to VD name INFO VD detach LUN OK VD name has been detached INFO VD detach LUN fail Failed to attach LUN from bus number SCSI ID number lun number INFO VD init started VD name starts initialization INFO VD init finished VD name completes initialization WARNING VD init failed Failed to complete initialization of VD name INFO VD r...

Page 128: ...t error create global Failed to create the global cache INFO PD dedicated spare Assign PD slot to be the dedicated spare disk of RG name INFO PD global spare Assign PD slot to Global Spare Disks WARNING PD read error Read error occurred at LBA address address of PD slot WARNING PD write error Write error occurred at LBA address address of PD slot WARNING Scrub wrong parity The parity data inconsis...

Page 129: ...a assigned to snapshot name is reached INFO Snap clear space The snapshot space of VD name is cleared iSCSI events Level Type Description INFO iSCSI login accepted iSCSI login from IP succeeds INFO iSCSI login rejected iSCSI login from IP was rejected reason string INFO iSCSI logout recvd iSCSI logout from IP was received reason string Battery backup events Level Type Description INFO BBM start sy...

Page 130: ...write error occurred at LBA address address of JBOD name PD slot WARNING PD read error Read error occurred at LBA address address of JBOD name PD slot WARNING PD write error Write error occurred at LBA address address of JBOD name PD slot INFO PD scrub started JBOD name PD slot starts disk scrubbing process INFO PD scrub completed JBOD name PD slot completed disk scrubbing process WARNING PS fail ...

Page 131: ...pe Description INFO RG owner changed The preferred owner of RG name has been changed to controller number INFO Force CTR write through Controller number forced to adopt write through mode on failover INFO Restore CTR cache mode Controller number restored to previous caching mode on failback INFO Failover complete All volumes in controller number completed failover process INFO Failback complete Al...

Page 132: ... name finished replication process WARNING VD replicate failed The replication in VD name failed INFO VD replicate aborted The replication in VD name was aborted INFO VD set as replica VD name has been configured as a replica INFO VD set as RAID VD name has been configured as a RAID volume INFO VD replica set The replica of VD name has been designated INFO VD replica reset The replica of VD name i...

Page 133: ...inux 5 Kernel 2 6 use the build in iSCSI initiator iscsi initiator utils 6 2 0 742 0 5 el5 in kernel 2 6 18 Mac ATTO Xtend SAN iSCSI initiator v3 10 System Requirements 1 Mac OS X v10 5 or later For ATTO Xtend SAN iSCSI initiator it is not free Please contact your local distributor 10GbE iSCSI HBA card Vendor Model Chelsio S310E CR C 10GbE Storage Accelerator PCI Express 8x 10GbE 1 port SFP 10GbE ...

Page 134: ...M Seagate Cheetah 15K 5 ST373455SS 73 4GB 15000RPM SAS 3 0Gb s 16M Seagate Cheetah 15K 5 ST3146855SS 146 8GB 15000RPM SAS 3 0Gb s 16M Seagate Cheetah 15K 6 ST3450856SS 450GB 15000RPM SAS 3 0Gb s 16M F W 003 Seagate Cheetah NS ST3400755SS 400GB 10000RPM SAS 3 0Gb s 16M Seagate Barracuda ES 2 ST31000640SS 1TB 7200RPM SAS 3 0Gb s 16M F W 0002 Seagate Cheetah NS 2 ST3600002SS 600GB 10000RPM SAS 2 0 6 ...

Page 135: ...ST3500641NS 500GB 7200RPM SATA 3 0Gb s 16M Seagate Barracuda ES ST3500630NS 500GB 7200RPM SATA 3 0Gb s 16M Seagate Barracuda ES ST3750640NS 750GB 7200RPM SATA 3 0Gb s 16M Seagate Barracuda ES 2 ST31000340NS 1TB 7200RPM SATA 3 0Gb s 32M F W SN06 Seagate SV35 5 ST3500410SV 500GB 7200 RPM SATA 3 0Gb s 16M NCQ F W CV11 Seagate Constellation ES ST31000524NS 1TB 7200RPM SATA 3 0Gb s 32M NCQ F W SN11 Wes...

Page 136: ...tor Here is the step by step to setup Microsoft iSCSI Initiator Please visit Microsoft website for latest iSCSI initiator This example is based on Microsoft Windows Server 2008 R2 Connect 1 Run Microsoft iSCSI Initiator 2 Input IP address or DNS name of the target And then click Quick Connect Figure B 1 3 Click Done ...

Page 137: ...re B 2 Figure B 3 4 It can connect to an iSCSI disk now MPIO 5 If running MPIO please continue 6 Click Discovery tab to connect the second path 7 Click Discover Portal Input IP address or DNS name of the target ...

Page 138: ...138 Figure B 4 Figure B 5 8 Click OK Figure B 6 Figure B 7 ...

Page 139: ...nable Enable multi path checkbox Then click OK 11 Done it can connect to an iSCSI disk with MPIO MC S 12 If running MC S please continue 13 Select one target name click Properties 14 Click MCS to add additional connections Figure B 8 Figure B 9 15 Click Add 16 Click Advanced ...

Page 140: ...140 Figure B 10 Figure B 11 17 Select Initiator IP and Target portal IP and then click OK 18 Click Connect 19 Click OK Figure B 12 Figure B 13 20 Done ...

Page 141: ...141 Disconnect 21 Select the target name click Disconnect and then click Yes Figure B 14 22 Done the iSCSI device disconnect successfully ...

Page 142: ...ther multiplexer board or bridge board to install your HDDs in order to utilize the dual controller mode features Otherwise the IP SAN system will not be able to recognize the HDDs Before you can insert the second controller to the IP SAN storage the IP SAN storage system should be up and running and looks like the following screenshot in Maintenance System Note that the status is single and you h...

Page 143: ...below to upgrade to dual controller mode Step 1 Go to Maintenance System Copy the IP SAN storage serial number Step 2 Go to Maintenance Upgrade and paste the serial number into Controller Mode section Select Dual as operation mode ...

Page 144: ...144 Step 3 Click confirm The system will ask you to shutdown Please shutdown IP SAN storage Click Ok ...

Page 145: ...145 Go to Maintenance Reboot and shutdown Click Shutdown to shutdown the system Click Ok ...

Page 146: ...ler to the IP SAN storage And then power on the system The IP SAN storage should now become in dual controller mode as the DSN 6410 with DSN 640 You may go to Maintenance System information to check out The IP SAN storage is running in dual controller mode now ...

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