XtendLan xl-raid-2804issa Installation And Configuration Manual Download Page 11

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1.4 RAID Concepts

RAID Fundamentals

The basic idea of RAID (Redundant Array of Independent Disks) is to combine multiple inexpensive

disk drives into an array of disk drives to obtain performance, capacity and reliability that exceeds

that of a single large drive. The array of drives appears to the host computer as a single logical

drive.

Five types of array architectures, RAID 1 through RAID 5, were originally defined; each provides

disk fault-tolerance with different compromises in features and performance. In addition to these

five redundant array architectures, it has become popular to refer to a non-redundant array of disk

drives as a RAID 0 arrays.

Disk Striping

Fundamental to RAID technology is striping. This is a method of combining multiple drives into one

logical storage unit. Striping partitions the storage space of each drive into stripes, which can be as

small as one sector (512 bytes) or as large as several megabytes. These stripes are then

interleaved in a rotating sequence, so that the combined space is composed alternately of stripes

from each drive. The specific type of operating environment determines whether large or small

stripes should be used.

Most operating systems today support concurrent disk I/O operations across multiple drives.

However, in order to maximize throughput for the disk subsystem, the I/O load must be balanced

across all the drives so that each drive can be kept busy as much as possible. In a multiple drive

system without striping, the disk I/O load is never perfectly balanced. Some drives will contain

data files that are frequently accessed and some drives will rarely be accessed.

By striping the drives in the array with stripes large enough so that each record falls entirely within

one stripe, most records can be evenly distributed across all drives. This keeps all drives in the

array busy during heavy load situations. This situation allows all drives to work concurrently on

different I/O operations, and thus maximize the number of simultaneous I/O operations that can

be performed by the array.

Summary of Contents for xl-raid-2804issa

Page 1: ...XL RAID 2804ISSA iSCSI SATA II SUBSYSTEM Installation and Configuration Manual Revision 1 0 ...

Page 2: ... Smart Function Panel 20 2 4 Connecting iSCSI Subsystem to Your Network 20 2 5 Powering On 21 2 6 Installing Hard Drives 21 2 6 1 HDD Status Indicator 22 2 7 iSCSI Introduction 23 2 8 Management Methods 24 2 8 1 Web GUI 24 2 8 2 Console Serial Port 25 2 8 3 Remote Control Secure Shell 25 2 9 Enclosure 26 2 9 1 LCD Control Module LCM 26 2 9 2 System Buzzer 27 Chapter 3 Web GUI Guideline 28 3 1 XL R...

Page 3: ...up 45 3 6 4 User Data Volume 47 3 6 5 Cache Volume 48 3 6 6 Logical Unit Number 49 3 6 7 Examples 50 3 7 Enclosure Management 60 3 7 1 SES Configuration 60 3 7 2 Hardware Monitor 61 3 7 3 Hard Drive S M A R T Function Support 62 3 7 4 UPS 63 3 8 System Maintenance 64 3 8 1 Upgrade 64 3 8 2 Info 65 3 8 3 Reset to Default 65 3 8 4 Config Import Export 65 3 8 5 Shutdown 67 3 9 Logout 67 Chapter 3 Adv...

Page 4: ...PIO and MC S 76 Appendix 77 A Certification List 77 B Event Notifications 79 C Known Issues 83 D Microsoft iSCSI Initiator 83 E Trunking LACP Setup Instructions 87 F MPIO and MC S Setup Instructions 96 G QLogic QLA4010C Setup Instructions 111 H Installation Steps for Large Volume TB 116 ...

Page 5: ...D 2804ISSA Snapshot on the box can keep up to 32 snapshots for all data volumes Rollback feature is provided for restoring the previously snapshot data easily while continuously using the volume for further data access The data access is regular as usual including read write without any impact to end users The on the box terminology implies that it does not require any proprietary agents installed...

Page 6: ... and dedicated hot spare disks Write through or write back cache policy for different application usage Dedicated or shared cache allocation for volume usage Supports greater than 2TB per volume set 64 bit LBA support Supports manual or scheduling volume snapshot up to 32 snapshot Snapshot rollback mechanism Online volume migration with no system down time Online volume expansion Instant RAID volu...

Page 7: ...ion 802 3ad port trunking LACP support Jumbo frame support Maximum logical volume up to 256 Maximum host connection up to 32 Maximum host clustering up to 8 for one logical volume Manual scheduling volume snapshot up to 32 Snapshot rollback mechanism support Supports Microsoft Multipath I O MPIO Global dedicated cache configurable by volume Global and dedicated hot spare disks Online Volume migrat...

Page 8: ...on Hot swap power supplies Two 2 350W power supplies w PFC Cooling fans 2 Battery backup Option Power requirements AC 90V 264V full range 8A 4A 47Hz 63Hz Environmental Relative Humidity 10 85 Non condensing Operating Temp 10o C 40o C 50o F 104o F Physical Dimensions 88 H x 482 W x 650 D mm Weight 12 5 kgs without drives ...

Page 9: ...UN Logical Unit Number A logical unit number LUN is an unique identifier used on a iSCSI connection which enables it to differentiate among separate devices each of which is a logical unit GUI Graphic User Interface RAID width RAID copy RAID row RAID cell in one row RAID width copy and row are used to describe one VG E g 1 One 4 disk RAID 0 volume RAID width 4 RAID copy 1 RAID row 1 2 One 3 way mi...

Page 10: ...the array s member disks are functioning but the array is able to respond to application read and write requests to its virtual disks S M A R T Self Monitoring Analysis and Reporting Technology WWN World Wide Name HBA Host Bus Adapter MPIO Multi Path Input Output MC S Multiple Connections per Session S E S SCSI Enclosure Services NIC Network Interface Card iSCSI Internet Small Computer Systems Int...

Page 11: ...l megabytes These stripes are then interleaved in a rotating sequence so that the combined space is composed alternately of stripes from each drive The specific type of operating environment determines whether large or small stripes should be used Most operating systems today support concurrent disk I O operations across multiple drives However in order to maximize throughput for the disk subsyste...

Page 12: ...le RAID 1 arrays can be striped together to create a single large array consisting of pairs of mirrored drives All writes must go to both drives of a mirrored pair so that the information on the drives is kept identical However each individual drive can perform simultaneous independent read operations Mirroring thus doubles the read performance of a single non mirrored drive and while the write pe...

Page 13: ...an yield similar performance to RAID 3 arrays Under RAID 5 parity information is distributed across all the drives Since there is no dedicated parity drive all drives contain data and read operations can be overlapped on every drive in the array Write operations will typically access one data drive and one parity drive However because different records store their parity on different drives write ...

Page 14: ...AID 3 does not allow overlapping of multiple I O operations and requires synchronized spindle drives to avoid performance degradation with short records RAID 5 with a small stripe size offers similar performance RAID 5 combines efficient fault tolerant data storage with good performance characteristics However write performance and performance during drive failure is slower than with RAID 1 Rebuil...

Page 15: ...s N 2 drives to implement because of two dimensional parity scheme 4 0 1 Mirroring of the two RAID 0 disk arrays This level provides striping and redundancy through mirroring 4 10 Striping over the two RAID 1 disk arrays This level provides mirroring and redundancy through striping 4 30 Combination of RAID levels 0 and 3 This level is best implemented on two RAID 3 disk arrays with data striped ac...

Page 16: ... shipping carton may indicate that the contents of the carton are damaged If any damage is found do not remove the components contact the dealer where you purchased the subsystem for further instructions 2 2 Unpacking the Subsystem The package contains the following items iSCSI RAID subsystem unit Two power cords Three Ethernet LAN cables One external null modem cable Installation Reference Guide ...

Page 17: ...17 2 3 Identifying Parts of the XL RAID 2804ISSA Subsystem The illustrations below identify the various parts of the subsystem 2 3 1 Front View 2 3 2 Rear View ...

Page 18: ...ing 4 Monitor Port The subsystem is equipped with a serial monitor port allowing you to connect a PC or terminal 5 Fan Fail indicator If a fan fails this LED will turn red 6 Cooling Fan module Two blower fans are located at the rear of the subsystem They provide sufficient airflow and heat dispersion inside the chassis In case a fan fails to function the Fan fail LED will turn red and an alarm wil...

Page 19: ...n Fail LED When a fan fails this LED will turn red and an alarm will sound Over Temperature LED If temperature irregularities in the system occurs HDD slot temperature over 45 C this LED will turn RED and alarm will sound Voltage Warning LED An alarm will sound warning of a voltage abnormality and this LED will turn red Access LED This LED will blink blue when the RAID controller is busy active ...

Page 20: ...elected Exit button EXIT Press this button to return to the previous menu 2 4 Connecting iSCSI Subsystem to Your Network To connect the iSCSI unit to the network insert the cable that came with the unit into the network connection LAN1 on the back of iSCSI unit Insert the other end into a Gigabit BASE T Ethernet connection on your network hub or switch You may connect the other network port LAN2 i...

Page 21: ... of the hard drives supported by the subsystem and give instructions on installing a hard drive The subsystem supports hot swapping allowing you to install or replace a hard drive while the subsystem is running a Pull out an empty disk tray Pull the handle outwards to remove the carrier from the enclosure b Take off the bracket before installing hard drive c Place the hard drive in the disk tray d...

Page 22: ...e is in good condition If the hard drive is not being accessed the HDD access LED will not illuminate The LED blinks only when being accessed 2 6 1 HDD Status Indicator Parts Function HDD Status LEDs Green LED indicates power is on and hard drive status is good for this slot If hard drive defected in this slot or the hard drive is failure the LED is orange HDD Access LEDs These LED will blink blue...

Page 23: ...itiator 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 server side either an iSCSI HBA or iSCSI SW initiator The iSCSI target is the storage device itself or an appliance which controls and serves volumes or virtual volumes The target is the device which performs SCSI ...

Page 24: ...om group open iscsi topics Open iSCSI Wiki http www open iscsi org cgi bin wiki pl 3 ATTO iSCSI initiator is available for Mac Website http www attotech com xtend html 2 8 Management Methods There are three management methods to manage XL RAID 2804ISSA describe in the following 2 8 1 Web GUI XL RAID 2804ISSA support graphical user interface to manage the system Be sure to connect LAN cable to your...

Page 25: ...15200 8 bits 1 stop bit and no parity Terminal type vt100 Login name admin Default password 00000000 2 8 3 Remote Control Secure Shell SSH secure shell is required for XL RAID 2804ISSA to remote login The SSH client software is available at the following web site SSHWinClient WWW http www ssh com Putty WWW http www chiark greenend org uk Host name 192 168 10 50 Please check your DHCP address for t...

Page 26: ...etail from front panel too The following table is function description System Info View System information of Firmware Version RAM Size Alarm Mute Mute alarm when error occurs Reset Shutdown Reset or shutdown controller Quick Install Quick three steps to create a volume Please refer to section 3 3 for operation in web UI View IP Setting Display current IP address subnet mask and gateway Change IP ...

Page 27: ...nfig Static IP Apply IP Setting cYes Nod proIPS cd Reset to Default cYes Nod CAUTION Before power off it is better to execute Shutdown to flush the data from cache to physical disks 2 9 2 System Buzzer The system buzzer features are describing in the following 1 The system buzzer alarms 1 second when system boots up successfully 2 The system buzzer alarms continuously when there is error level eve...

Page 28: ...AC address Node Node name CHAP Authentication Session iSCSI sessions and connections CHAP account Create Delete CHAP account Physical disk Free disc Global spares Dedicated spares More information Auto Spindown Volume group Create Delete More information Rename Migrate Expand User data Volume Create Delete Attach LUN Snapshot More information Rename Extend Set read write mode Set priority Resize S...

Page 29: ...ocks on the left side of window to do configuration There are six indicators at the top right corner for backplane solutions and cabling solutions have three indicators at the top right corner 1 RAID light Green means RAID works well Red represents RAID failure happening 2 Temperature light Green is normal Red represents abnormal temperature 3 Voltage light Green is normal Red represents abnormal ...

Page 30: ...ed with different sizes of HDD e g 4 200G HDD and 4 80G XL RAID 2804ISSA also lists all possibilities and combinations of different RAID Level and different sizes After user chooses RAID level user may finds there are still some HDD are not used Free Status The result is from XL RAID 2804ISSA s smarter policy on Quick Install which gives user 1 Biggest capacity of RAID level which user chooses and...

Page 31: ...e In this page the Volume size can be changed The maximum volume size is shown To re enter the size be sure it has to be less or equal to maximum volume size Then click Step 3 Confirm page Click if all setups are correct Then a page with the User data volume just been created will be shown Done You can start to use the system now ...

Page 32: ...config selection is for the setup of System name IP address Login config Password Date Mail SNMP and view Event log 3 4 1 System Name Select System name to change system name Default system name composed by model name ex XL RAID 2804ISSA ...

Page 33: ...ic IP The default setting is DHCP enabled User can change the HTTP HTTPS and SSH port number when the default port number is not allowed on host server 3 4 3 Language Select Language is for changing GUI language There are 3 selections Auto Detect English and Simplified Chinese The default language is the same with your browser IE or Firefox default language ...

Page 34: ...en user is no response for a period of time the system will logout automatically to allow another user to login 2 Login lock Disable Enable When the login lock is enabled the system allows only one user to login modify the system settings 3 4 5 Password Select Password is for changing administrator password The maximum length of admin password is 12 characters 3 4 6 Date Select Date to set up the ...

Page 35: ... Send test mail to check whether the email works fine User can also select which levels of event logs are needed to be sent out by Mail Default setting is only ERROR and WARNING event logs enabled 3 4 8 SNMP Select SNMP to set up SNMP trap for alert via SNMP It allows up to 3 SNMP trap addresses Default community setting is public User can choose the event log type and the default value of SNMP is...

Page 36: ...10 System Log Server Select System log server to set up the system log server for RAID subsystem event log trapping which is able to support remote logging Remote logging means that event log can be forwarded from the RAID subsystem to another running syslogd which it can actually log to a disk file 1 Server IP hostname enter the IP address or hostname of system log server 2 Port enter the UDP por...

Page 37: ...ar log raid log when syslogd receive the messages from RAID subsystem For more detail features please check the syslogd and syslog conf manpage e g man syslogd Server side Windows 2003 Windows doesn t provide system log server user needs to find or purchase a client from third party below URL provide evaluation version you may use it for test first http www winsyslog com en 1 Install winsyslog exe...

Page 38: ...in the first four hard drives each hard drive has one copy of event log For one controller there are four copies of event logs to guarantee users can check event log most of the time when there is are failed disk s 3 5 iSCSI Config iSCSI config selection is for the setup of Entity Property NIC Node Session and CHAP account 3 5 1 Entity Property Select Entity property to view the the entity name of...

Page 39: ... or trunking mode the second line will not show in the screen User can change IP address by clicking the blue square button in the DHCP column There are 2 selections DHCP Get IP address from DHCP server or static IP Default gateway can be changed by clicking the blue square button in the Gateway column There is only one default gateway The row of No 1 would be the default gateway Link aggregation ...

Page 40: ...e refer to Appendix E Trunking LACP setup instructions CAUTION Each of gigabit LAN ports must have IP address in different subnet for backplane solutions 3 5 3 Node Select Node to view the target name for iscsi initiator Press Auth to enable CHAP authentication CHAP is the abbreviation of Challenge Handshake Authorization Protocol CHAP is a strong authentication method used with point to point for...

Page 41: ...ion function it will display iSCSI session and connection information including the following items 1 Host Initiator Name 2 Security Protocol 3 TCP Port Number 4 Error Recovery Level 5 Error Recovery Count 6 Detail of Authentication status and Source IP port number 3 5 5 CHAP Account NOTE Only one CHAP account can be created Enter CHAP account function to create a CHAP account for authentication ...

Page 42: ...nts One VG Volume Group consists of a set of UDVs User Data Volume and owns one RAID level attribute Each VG can be divided into several UDVs The UDVs from one VG share the same RAID level but may have different volume capacity Each UDV will be associated with one specific CV Cache Volume to execute the data transaction Each CV could have different cache memory size from user s modification settin...

Page 43: ...oxes in front of the slot number Or select the checkbox at the top left corner will select all Check again will select none 2 The list box will disappear if there is no VG or only VG of RAID 0 JBOD Because these RAID levels cannot be set as dedicated spare disk 3 These three functions Free disc Global spares Dedicated spares can do multiple selects too 4 The operations of the other web pages e g v...

Page 44: ...DEFECT the hard drive has the bad blocks FAIL the hard drive cannot work in the respective volume Status 1 RD RAID Disk This hard drive has been set to RAID FR FRee disk This hard drive is free for use DS Dedicated Spare This hard drive has been set to the dedicated spare of the VG GS Global Spare This hard drive has been set to a global spare of all VGs RS ReServe The hard drive contains the VG i...

Page 45: ...the speed can achieve Serial ATA Gen 1 signaling speed 1 5Gbps Unknown The disk doesn t support above command so the speed is defined as unknown PD operations description FREE DISC Make the selected hard drive to be free for use GLOBAL SPARES Set the selected hard drive s to global spare of all VGs DEDICATED SPARES Set hard drive s to dedicated spare of selected VGs XL RAID 2804ISSA also provides ...

Page 46: ...volume group Status The status of volume group Online volume group is online Fail volume group is fail Status 1 DG DeGraded mode This volume group is not completed The reason could be lack of one disk or failure of disk Status 2 R Rebuild This volume group is doing rebuilding Status 3 M Migration This volume group is doing migration RAID The RAID level of the volume group The blue square button ne...

Page 47: ...otal capacity of this user data volume The blue square button in below to the size is Extend function Status The status of this user data volume Online user data volume is online Fail user data volume is failed Status 1 WT Write Through WB Write Back The blue square button in below to the status1 is Set read write mode function Status 2 HI HIgh priority MD MiD priority LO LOw priority The blue squ...

Page 48: ... snapshot space If the snapshot UDV has been created this column will be the creation time VG name The VG name of the user data volume CV MB The cache volume of the user data volume UDV operations description ATTACH LUN Attach to a LUN SNAPSHTOT Choose a UDV to execute snapshot CREATE Create a user data volume function DELETE Delete a user data volume function 3 6 5 Cache Volume Enter Cache volume...

Page 49: ...E Delete a cache volume function 3 6 6 Logical Unit Number Enter Logical unit function to view the status of attached logical unit number of each UDV User can attach LUN by clicking the Host must input an initiator node name for access control or fill in wildcard which means every host can access the volume Choose LUN and permission and then click User can assign up to 256 LUNs per system controll...

Page 50: ...e other host iqn host2 can login because it matches the rule 1 The access will be denied when there is no matching rule 3 6 7 Examples The followings are examples for creating volumes Example 1 is to create two UDVs sharing the same CV global cache volume and set a global spare disk Example 2 is to create two UDVs One shares global cache volume the other uses dedicated cache volume Set a dedicated...

Page 51: ...p To create the volume group please follow the procedures 1 Select Volume config Volume group 2 Click 3 Input a VG Name choose a RAID level from the picklist press to choose the RAID PD slot s then press 4 Check the outcome Press if all setups are correct 5 Done A VG has been created Step 2 Create UDV User Data Volume To create a user data volume please follow the procedures ...

Page 52: ...e the stripe high block size read write mode and set priority finally click 4 Done A UDV has been created 5 Do one more time to create another UDV Step 3 Attach LUN to UDV There are 2 methods to attach LUN to UDV 1 In Volume config User data volume press 2 In Volume config Logical unit press The procedures are as follows ...

Page 53: ...mission then click 3 Done NOTE The matching rules of access control are from top to bottom by sequence Step 4 Set global spare disk To set global spare disks please follow the procedures 1 Select Volume config Physical disk 2 Select the free disk s by clicking the checkbox of the row then click to set as global spares 3 There is a GS icon shown up at status 1 column ...

Page 54: ...w the steps Step 6 Detach LUN from UDV In Volume config Logical unit 1 Select LUNs by clicking the checkbox of the row then click There will pop up a confirm page 2 Choose OK 3 Done Step 7 Delete UDV User Data Volume To delete the user data volume please follow the procedures ...

Page 55: ...PORTANT The action of deleting one VG will succeed only when all of the related UDV s are deleted in this VG Otherwise it will have an error when deleting this VG Step 9 Free global spare disk To free global spare disks please follow the procedures 1 Select Volume config Physical disk 2 Select the global spare disk by clicking the checkbox of the row then click to free disk Step 10 Done all volume...

Page 56: ... If there is no free space for creating a new dedicated cache volume cut down the global cache size first by clicking the blue square button in the size column After resized click to return to cache volume page 3 Click to enter the setup page 4 Fill in the size and click 5 Done A new dedicated cache volume has been set NOTE The minimum size of global cache volume is 40MB The minimum size of dedica...

Page 57: ... 3 Input a UDV name choose a VG Name select Dedicated cache which is created at Step 1 and input the size for the UDV decide the stripe height block size read write mode and set priority finally click 4 Done A UDV using dedicated cache has been created ...

Page 58: ... Set dedicated spare disk To set dedicated spare disks please follow the procedures 1 Select Volume config Physical disk 2 Select a VG from the list box and then select the free disk s click to set as dedicated spare for the selected VG 3 There is a DS icon shown up at status 1 column ...

Page 59: ...spare disk To free dedicated spare disks please follow the procedures 1 Select Volume config Physical disk 2 Select the dedicated spare disk by clicking the checkbox of the row then click to free disk Step 11 Delete dedicated cache volume To delete the cache volume please follow the procedures 1 Select Volume config Cache volume 2 Select a CV by clicking the checkbox of the row 3 Click There will ...

Page 60: ...t polling intervals Below is the detail polling time intervals 1 Temperature sensors 1 minute 2 Voltage sensors 1 minute 3 Hard disk sensors 10 minutes 4 Fan sensors 10 seconds when there are continuous 3 times of error controller sends ERROR event log 5 Power sensors 10 seconds when there are continuous 3 times of error controller sends ERROR event log 6 LED status 10 seconds 3 7 1 SES Configurat...

Page 61: ...ll shutdown automatically when voltage or temperature is out of the normal range For better data protection please check Auto Shutdown For better protection and to avoid single short period of high temperature triggering Auto shutdown XL RAID 2804ISSA use multiple condition judgments for Auto shutdown below is the detail of when the Auto shutdown will be triggered ...

Page 62: ...f Monitoring Analysis and Reporting Technology is a diagnostic tool for hard drives to give advanced warning of drive failures S M A R T provides users chances to take actions before possible drive failure S M A R T measures many attributes of the hard drive all the time and decide the hard drives which are close to out of tolerance The advanced notice of possible hard drive failure can allow user...

Page 63: ...PS Shutdown Battery Level When below the setting level the system will shutdown Setting level to 0 will disable UPS function Shutdown Delay s If power failure occurred and the system can not return back to the setting value period 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 suc...

Page 64: ...N setting and Shutdown to either reboot or shutdown the system 3 8 1 Upgrade Enter Upgrade function to upgrade firmware Please prepare new firmware file named xxxx bin in local hard drive then press to select the file Click it will pop up a message Upgrade system now If you want to downgrade to the previous FW later please export your system config first click Cancel to export system config first ...

Page 65: ...lues export function and to apply all configuration import function For the volume config setting the values are available in export function and not available in import function which can avoid confliction date deleting between two subsystems That says if one controller already has valuable data on the disks and user may forget it and use import function If the volume setting was also imported th...

Page 66: ...ing vol_temp Auto shutdown setting UPS UPS setting with 1 UPS type 2 Shutdown Battery Level 3 Shutdown Delay 4 Shutdown UPS Physical disk Not available in import function Current controller hard disk status with 1 size 2 block size 3 VG 4 hard status Physical disk spindown Not available in import function Hard disk auto spindown setting Volume group Not available in import function VG setting with...

Page 67: ... power off it s better to press Shutdown to flush the data from cache to physical disks The step is better for the data protection 3 9 Logout For security reason Logout function will allow logout while no user is operating the system Re login the system please enter username and password again ...

Page 68: ... not start auto rebuild b If this disk is not belonging to any existing VG it would be FR Free disk and the system will start Auto Rebuild function c if user only removes the failed disk and plugs the same failed disk in the same slot again the auto rebuild will start by this case But rebuilding in the same failed disk may impact customer data later from the unstable disk status XL RAID 2804ISSA s...

Page 69: ...al parity protection over the member disks RAID 6 allows two hard drives fails or unplugging If it needs to rebuild two hard drives at the same time it will rebuild the first one then the other by sequence RAID 0 1 Mirroring of the member RAID 0 volumes RAID 0 1 allows two hard drives fails or unplugging but at the same array RAID 10 Striping over the member RAID 1 volumes RAID 10 allows two hard ...

Page 70: ... the original RAID level is RAID 6 and user wants to migrate to RAID 0 the controller will evaluate this operation is safe or not and display Sure to migrate to a lower protection array to give user warning 4 Double check the setting of RAID level and RAID PD slot If no problem click 5 Finally a confirmation page shows detail RAID info If no problem click to start migration Controller also pops up...

Page 71: ...rce VG is invalid Degrade VG not allowed Source VG is degraded Initializing rebuilding operation s going Source VG is initializing or rebuilding Migration operation s going Source VG is already in migration Invalid VG raidcell parameter Invalid configuration E g New VG s capacity Old VG s capacity New VG s stripe size Old VG s stripe size Or New VG s configuration Old VG s configuration Invalid PD...

Page 72: ...olumn next the number Change the size The size must be larger than the original in the Size then click to start extension 4 Extension starts If UDV needs initialization it will display an I in Status 3 and complete percentage of initialization in R NOTE The size of UDV extension must be larger than original WARNING UDV Extension cannot be executed during rebuild or migration ...

Page 73: ...located within the same VG in which the snapshot is taken we suggest to reserve 20 of VG size or more for snapshot space NOTE Snapshot rollback features need 512MB RAM at least Please also refer to RAM certification list in Appendix A 4 4 1 Create Snapshot Volume To take a snapshot of the data please follow the procedures 1 Select Volume config User data volume 2 Choose a UDV to do snapshot by cli...

Page 74: ...e following 1 Minimum RAM size of enabling snapshot function is 512MB 2 For performance concern and future rollback the system saves snapshot with names in sequences For example three snapshots has been taken and named snap1 first snap2 and snap3 last When deleting snap2 both of snap1 and snap2 will be deleted because snap1 are related to snap2 3 For resource concern the max number of snapshots is...

Page 75: ...V can rollback to original UDV Please follow the procedures 1 Select Volume config User data volume 2 Take one or more snapshots Please refer to section 4 4 1 for more detail 3 Click in Snapshot GB column to rollback the data which user can recover data to the time that snapshot is taken Rollback function has some constraints as described in the following 1 Minimum RAM size of enabling rollback fu...

Page 76: ...ll be kept but LUN configuration will be cleared to avoid conflict with system 2 4 6 Support Microsoft MPIO and MC S MPIO Multi Path Input Output and MC S Multiple Connections per Session both use multiple physical paths to create logical paths between the server and the storage device In the case which one or more of these components fails causing the path to fail multi path logic uses an alterna...

Page 77: ...JF 1GB DDR400 Non ECC with Elpida ATP AG28L72T8SHC4S 1GB DDR400 ECC with Samsung ATP AG28L64T8SHC4S 1GB DDR400 Non ECC with Samsung ATP AG64L72T8SQC4S 512MB DDR400 ECC with Samsung ATP AJ56K72G8BJE6S 2GB DDR2 667 Unbuffered ECC with Samsung Transcend TS256MLQ64V6U 2GB DDR2 667 Unbuffered with Samsung Unigen UG25T7200M8DU 5AM 2GB DDR2 533 UnBuffered ECC with Micron iSCSI Initiator Software OS Softw...

Page 78: ...SATA 8M Hitachi Deskstar 7K80 HDS728080PLA380 80GB 7200RPM SATA II 8M Hitachi Deskstar 7K500 HDS725050KLA360 500G 7200RPM SATA II 16M Hitachi Deskstar 7K80 HDS728040PLA320 40G 7200RPM SATA II 2M Maxtor DiamondMax Plus 9 6Y080M0 80G 7200RPM SATA 8M Maxtor DiamondMax 11 6H500F0 500G 7200RPM SATA 3 0Gb s 16M Samsung SpinPoint P80 HDSASP0812C 80GB 7200RPM SATA 8M Seagate Barracuda 7200 7 ST380013AS 80...

Page 79: ...is detected Info ECC DIMM Installed Info ECC Memory is installed Info Non ECC installed Info Non ECC Memory is installed Error Host chip failure Error Host channel chip failed Error Drive chip failure Error Drive channel chip failed Warning Ethernet port failure Warning GUI Ethernet port failed HDD IO Events Level Type Description Warning Disk error Error Disk slot read block error Warning Disk er...

Page 80: ...he system will do the auto shutdown immediately Warning Voltage warning Warning System voltage is a little bit higher lower Info PSU restore Info Power number is restored to work Error PSU Fail Error Power number is out of work Info Fan restore Info Fan number is restore to work Error Fan Fail Error Fan number is out of work Error Fan non exist Error System cooling fan is not installed Error AC Lo...

Page 81: ...l Warning Fail to create VG name Info VG Deleted Info VG name has been deleted Info UDV Created OK Info UDV name has been created Warning UDV Created Fail Warning Fail to create UDV name Info UDV Deleted Info UDV name has been deleted Info UDV Attached OK Info UDV name has been LUN attached Warning UDV Attached Fail Warning Fail to attach LUN to UDV name Info UDV Detached OK Info UDV name has been...

Page 82: ...e is set to high priority Info Mid Priority UDV Info UDV name is set to mid priority Info Low Priority UDV Info UDV name is set to low priority Error PD configuration read write error Error PD slot lba length config read write failed Error PD read write error Error PD lba length read write error Error UDV recoverable read write error Error UDV name stripe PD lba length read write recoverable Error...

Page 83: ... solution Using Windows Server 2003 or Windows 2000 server to run MPIO D Microsoft iSCSI Initiator Here is the step by step to setup Microsoft iSCSI Initiator Please visit Microsoft website for latest iSCSI initiator The following setup may not use the latest Microsoft iSCSI initiator 1 Run Microsoft iSCSI Initiator version 2 03 Please see Figure D 1 2 Click Discovery 3 Click Add Input IP address ...

Page 84: ...84 4 Click OK 5 Click Targets ...

Page 85: ...85 6 Click Log On Check Enable multi path if running MPIO 7 Click Advance if CHAP information is needed 8 Click OK The status would be Connected 9 Done it can connect to an iSCSI disk ...

Page 86: ...86 The following procedure is to log off iSCSI device a Click Details b Check the Identifier which will be deleted c Click Log off d Done the iSCSI device log off successfully ...

Page 87: ...ctions Here is the step by step to setup Trunking and LACP There are 2 kinds of scenarios for Trunking LACP The setup instructions are in the following figures Create a VG with RAID 5 using 3 HDDs Create a UDV by using the RAID 5 VG ...

Page 88: ...88 Run Microsoft iSCSI initiator 2 03 and check the Initiator Node Name Attaching LUN to R5 UDV Input the Initiator Node Name in the Host field Done please check the settings ...

Page 89: ... The IP address of iSCSI data port 1 is 192 168 11 229 Using port 1 as Trunking or LACP Click the blue square in Aggregation field to set Trunking or LACP Select Trunking If LACP is needed Now the setting is in Trunking mode ...

Page 90: ...90 Enable switch Trunking function of port 21 and 23 Below is an example of Dell PowerConnect 5324 Go to Figure E 14 for next step Select LACP If Trunking is needed Now the setting is LACP mode ...

Page 91: ...91 Enable switch LACP function of port 21 and 23 Below is an example of Dell PowerConnect 5324 Add Target Portals in Microsoft iSCSI initiator 2 03 ...

Page 92: ...92 Input the IP address of iSCSI data port 1 192 168 11 229 as mentioned in previous page Click Targets to log on Log on ...

Page 93: ...93 Click Advanced Select Target Portal to iSCSI data port 1 192 168 11 229 Then click OK ...

Page 94: ...94 The setting is completed Run Computer Management in Windows Make sure the disks are available Then the disks can be tested for performance by IOMETER ...

Page 95: ...95 ...

Page 96: ...step to setup MPIO There are 2 kinds of scenarios for MPIO Please see Figure F 1 XL RAID 2804ISSA suggests using scenario 2 for better performance Network diagram of MPIO The setup instructions are in the following figures Create a VG with RAID 5 using 3 HDDs ...

Page 97: ...97 Create a UDV by using RAID 5 VG Run Microsoft iSCSI initiator 2 03 and check the Initiator Node Name Attaching LUN to R5 UDV Input the Initiator Node Name in Host field ...

Page 98: ...98 The volume config setting is done Check iSCSI settings The IP address of iSCSI data port 1 is 192 168 11 229 port 2 is 192 168 12 229 for example Add Target Portals on Microsoft iSCSI initiator 2 03 ...

Page 99: ...99 Input the IP address of iSCSI data port 1 192 168 11 229 as mentioned in previous page Add second Target Portals on Microsoft iSCSI initiator 2 03 ...

Page 100: ...100 Input the IP address of iSCSI data port 2 192 168 12 229 as mentioned in previous page The initiator setting is done ...

Page 101: ...101 Log on Enable Enable multi path checkbox Then click Advanced ...

Page 102: ...102 Select Target Portal to iSCSI data port 1 192 168 11 229 Then click OK Log on again ...

Page 103: ...103 Enable Enable multi path checkbox Then click Advanced Select Target Portal to iSCSI data port 2 192 168 12 229 Then select OK ...

Page 104: ...104 iSCSI device is connected Click Details Click Device tab then click Advanced ...

Page 105: ...105 Click MPIO tab select Load Balance Policy to Round Robin Click Apply ...

Page 106: ... Create a UDV by using RAID 5 VG Run Microsoft iSCSI initiator 2 03 and check the Initiator Node Name Attaching LUN to R5 UDV Input the Initiator Node Name in Host field The volume config setting is done Check iSCSI settings The IP address of iSCSI data port 1 is 192 168 11 229 port 2 is 192 168 12 229 for example Add Target Portals on Microsoft iSCSI initiator 2 03 Input the IP address of iSCSI d...

Page 107: ...107 Log on Then click Advanced Select set Local Adapter Source IP and Target Portal to iSCSI data port 1 192 168 11 229 Then click OK ...

Page 108: ...108 After connected click Details then in the Session tab click Connections Choose Round Robin for Load Balance Policy ...

Page 109: ...109 Add Source Portal for the iSCSI data port 2 192 168 12 229 Select Local adapter Source IP and Target Portal to iSCSI data port 2 192 168 12 229 Then select OK ...

Page 110: ...110 The MC S setting is done ...

Page 111: ...tup Instructions The following is the step by step setup of Qlogic QLA4010C Log on the iSCSI HBA Manager and the current state shows No Connection Active Click Target settings Then select the target and click Config Parameters ...

Page 112: ...112 Disable Immediate Data and enable Initial R2T Click OK ...

Page 113: ...113 Click Save settings and click Yes on next page Click Refresh and find a new target with iSCSI name ...

Page 114: ...114 Check the parameters which Initial R2T are enabled Check Target Information again and the state changed to Session Active ...

Page 115: ...115 Then run Computer Management in Windows Make sure the disk appears ...

Page 116: ...ertification list of RAM iSCSI Initiator Software NIC or iSCSI HBA card SATA hard drive 3 CAT 5e or CAT 6 network cables for management port and iSCSI data ports Recommend CAT 6 cables for best performance SCSI cables and terminators 4 Prepare storage system configuration plan 5 Management and iSCSI data ports network information When using static IP please prepare static IP addresses subnet mask ...

Page 117: ...117 Choose RAID Level and Disks Confirm VG Settings A RAID 6 size 2793G VG is created 2 Go to Volume config User data volume create a UDV Create a UDV ...

Page 118: ...S is 32bit user has to change the block size to larger values than 512B There will be a confirmation pop up when UDV size is over 2TB for reminding Choose OK for 64bit OS Choose Cancel for 32bit OS This step will change block size to 4K automatically UDV is created If you want to check the detail information of this UDV go to click No 1 icon ...

Page 119: ...119 block size 512B for 64bit OS setting block size 4K for 32bit OS setting Attach LUN for iSCSI controller Attach LUN ...

Page 120: ...onfiguration for Windows Server 2003 R2 with Microsoft iSCSI initiator Please install the latest Microsoft iSCSI initiator from below link http www microsoft com downloads details aspx FamilyID 12cb3c1a 15d6 4585 b385 befd1319f825 DisplayLang en Run MS iSCSI initiator go to Discovery tab add target portal iSCSI data port ...

Page 121: ...d then Log On the target Status is Connected the initiator setting is done Step C Initialize Format Mount the disk 1 Go to Control Panel Computer Management Device Manger Disk drives 2 Go to Control Panel Computer Management Disk Management ...

Page 122: ...122 New Disk Initialize Disk Convert to GPT Disk for over 2TB capacity For more detail about GPT please visit http www microsoft com whdc device storage GPT_FAQ mspx ...

Page 123: ...s done The new disk is ready to go available size 2 72TB NOTE If user setup 512B block size for UDV and the host server OS is 32bit in the last step of formatting disk user will find OS cannot format the area after 2048GB 2TB ...

Page 124: ...124 XL RAID 2804ISSA SW version 1 1 0 Build 20080418 Wrong setting result OS cannot format area after 2048GB 2TB System information ...

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