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AS with Two FC HBAs+Three NICs+ Two Fabrics

Figure 2-7

shows the cluster networking of AS with two FC HBAs+three NICs+ two Fabrics.

Figure 2-7

Cluster networking of AS with two FC HBAs+three NICs+ two Fabrics

port1

port5

port6 port7

port8

port4

port3

port2

port12

port11

port10

port9

Optical fiber

FC host port

Fabric 1

Fabric 2

In Fabric,the switch ports at the two ends

of a dashed line form one zone.

Heartbeat line

Network cable

S5300

（全

选项）控

S5600 controller subrack (FC host ports)

Controller A

Controller B

00 0102 03

00 0102 03 10 1112 13

10 1112 13

Cluster

node-main

Cluster

node-backup

Public network

NIC 1 port 1

AS 1

AS 2

FC HBA 2 port 1

FC HBA 3 port 1

NIC 2 port 1

NIC 3 port 1

NIC 4 port 1

NIC 5 port 1

NIC 6 port 1

UltraPath

FC HBA 1 port 1

FC HBA 4 port 1

IP address of port 1 on NIC 1: 129.20.11.1

Subnet mask: 255.255.224.0

IP address of port 1 on NIC 2: 10.147.0.5

Subnet mask: 255.255.0.0

IP address of port 1 on NIC 3: 10.147.0.15

Subnet mask: 255.255.0.0

2 Setting Up the Management Environment

OceanStor S5600 Storage System

Initial Configuration Guide

2-14

Huawei Proprietary and Confidential

Issue 02 (2009-09-30)

Summary of Contents for OceanStor S5600

Page 1: ...OceanStor S5600 Storage System V100R002 Initial Configuration Guide Issue 02 Date 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd ...

Page 2: ... in this document are the property of their respective holders Notice The purchased products services and features are stipulated by the contract made between Huawei and the customer All or part of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommenda...

Page 3: ...g the Storage System 1 21 1 9 Setting Additional Information 1 21 2 Setting Up the Management Environment 2 1 2 1 Preparations 2 2 2 1 1 List of Devices 2 2 2 1 2 Networking Configuration 2 3 2 2 Networking 2 4 2 2 1 Networking Principle 2 5 2 2 2 Typical Networking of the S5600 Controller Subrack FC Host Ports 2 5 2 2 3 Typical Networking of the S5600 Controller Subrack FC and iSCSI Host Ports 2 ...

Page 4: ... LUN on an AS 3 47 3 13 1 Windows AS 3 47 3 13 2 Linux AS 3 54 4 Setting Additional Information 4 1 4 1 Setting the System Information 4 2 4 1 1 Changing the Device Name 4 2 4 1 2 Modifying the Name and the Location 4 3 4 1 3 Switching Over Primary and Secondary Controllers 4 4 4 1 4 Synchronizing the System Time 4 5 4 2 Setting the Alarm Information 4 5 4 2 1 Setting the Alarm Information 4 6 4 2...

Page 5: ...ssary B 1 C Acronyms and Abbreviations C 1 OceanStor S5600 Storage System Initial Configuration Guide Contents Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd iii ...

Page 6: ......

Page 7: ...Cs two Fabrics 2 12 Figure 2 6 Cluster networking of AS with two FC HBAs three NICs direct connection 2 13 Figure 2 7 Cluster networking of AS with two FC HBAs three NICs two Fabrics 2 14 Figure 2 8 Networking of AS with two FC HBAs three NICs five NICs two Fabrics two subnets 2 16 Figure 3 1 Iinitial configuration flow chart of the S5600 configured with FC host ports 3 3 Figure 3 2 Iinitial confi...

Page 8: ... 3 43 Figure 3 35 iSCSI port 3 44 Figure 3 36 Added CHAP users 3 44 Figure 3 37 Add user 3 45 Figure 3 38 Computer management 3 48 Figure 3 39 Viewing the logical disks 3 49 Figure 3 40 Viewing the logical disks 3 50 Figure 3 41 Menu for initializing a disk 3 51 Figure 3 42 Menu for initializing a disk 3 51 Figure 3 43 Menu for initializing a disk 3 52 Figure 3 44 Menu for convert to GPT disk 3 53...

Page 9: ...up 3 12 Table 3 5 Parameters for creating a LUN 3 15 Table 3 6 Parameters for creating a host group 3 18 Table 3 7 Parameters for adding a host 3 19 Table 3 8 Parameter of an iSCSI host port 3 24 Table 3 9 Parameters for adding a route 3 25 Table 3 10 The character of Optional modules of port mode 3 28 Table 3 11 Parameters for adding a port 3 40 Table 3 12 Parameters of the CHAP user 3 43 Table 4...

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Page 11: ... These engineers must be familiar with the knowledge of storage and Linux Organization This document is organized as follows Chapter Content 1 Process of the Initial Configuration This chapter describes the procedure and steps of the initial configuration of the S5600 2 Setting Up the Management Environment This chapter describes the preparations made when you set up the management environment for...

Page 12: ...rd with a high level of risk which if not avoided will result in death or serious injury WARNING Indicates a hazard with a medium or low level of risk which if not avoided could result in minor or moderate injury CAUTION Indicates a potentially hazardous situation which if not avoided could result in equipment damage data loss performance degradation or unexpected results TIP Indicates a tip that ...

Page 13: ... item is selected or no item is selected x y Optional items are grouped in braces and separated by vertical bars A minimum of one item or a maximum of all items can be selected x y Optional items are grouped in brackets and separated by vertical bars Several items or no item can be selected GUI Conventions The GUI conventions that may be found in this document are defined as follows Convention Des...

Page 14: ...Press the primary mouse button twice continuously and quickly without moving the pointer Drag Press and hold the primary mouse button and move the pointer to a certain position Update History Updates between document issues are cumulative Therefore the latest document issue contains all updates made in previous issues Updates in Issue 02 2009 09 30 The second commercial release has the following u...

Page 15: ... NICs or FC HBAs for the ASs 1 5 Setting Up the Management Environment Introduce how to set up the management environment of S5600 1 6 Configuring the IP Address of the Management Network Port on the Controller Introduce how to configure the IP address of the management network port on the S5600 controller 1 7 Logging in to the OSM3 0 Preparations and steps to log in to the OSM3 0 1 8 Configuring ...

Page 16: ...anagement environment l Setting the IP address of the management network port on the controller l Logging in to the OSM3 0 l Configuring the storage system l Setting additional information NOTE l NIC network interface card l FC fiber channel l HBA host bus adapter l AS application server l IP Internet Protocol l OSM OceanStor storage manager Figure 1 1 shows the steps of the S5600 initial configur...

Page 17: ...the Hardware section For details on how to set up the cluster environment see the related documents The two node system cluster described in this document is a high availability cluster In the cluster one node as the primary node provides services the other node as the secondary node runs idly or runs some non core applications 1 2 Planning the Networking Introduce the typical networking of S5600 ...

Page 18: ...e supports two iSCSI host ports Therefore each S5600 controller subrack provides eight FC host ports and four iSCSI host ports The S5600 storage device FC and iSCSI host ports and ASs achieve seamless integration of FC SAN and IP SAN over FC and iSCSI protocols Figure 1 2 shows the typical networking of the S5600 controller subrack FC host ports Figure 1 2 Typical networking of the S5600 controlle...

Page 19: ... availability All the hardware modules in the S5600 support online check fault location and online replacement l AS The ASs access the S5600 and obtain the storage resource Examples of the ASs are a video surveillance AS a streaming AS and a data backup AS NOTE You can improve the service reliability by using the cluster function l Maintenance terminal Through the maintenance terminal you can log ...

Page 20: ...nstall the maintenance terminal see the related product documents Checking Hardware CAUTION Before checking equipment installation and cable connection ensure that the power supply is cut off to avoid physical injury or equipment damage due to improper installation or connection Check the equipment installation as instructed in the tables below Table 1 1 describes the equipment installation checkl...

Page 21: ...e multiPath of the FC HBA if the multipath function is configured on the FC HBA Otherwise compatibility problems might occur l If you use the Qlogic FC HBA you need to insert the optical fiber in the original host port after removing or replacing the optical fiber Otherwise the displayed results that you query with the UpTools in the UltraPath might be not correct This does not affect the communic...

Page 22: ...tbeat network port Otherwise an IP conflict occurs in the network and services fail to run properly Procedure Step 1 Connect the ASs switches and maintenance terminal NOTE For details on the networking of the S5600 see 2 Setting Up the Management Environment Step 2 Check that grounding cables are fixed to the cabinet after cables are connected Table 1 2 describes the cable connection checklist Tab...

Page 23: ...t the controller subrack and disk subracks are connected according to the cascading principles NOTE l Ensure that the SFPc optical module is properly inserted into the FC host port and the latch is fastened l Do not use multimode SFP optical module with single mode optical fiber l When one end of an optical fiber connects to the RX port the other end connects to the TX port or vice versa l For det...

Page 24: ...erminal a It is used when the S5600 and ASs form the FC SAN with FC switches b It is used when the S5600 and ASs form the FC SAN with the direct connection c For details on how to install the small form factor pluggable SFP module and optical fibers see the OceanStor S5600 Controller Subrack User Guide d It is used when the S5600 configured with FC and iSCSI host ports and ASs form the IP SAN with...

Page 25: ... in to the CLI through the management network port Prerequisite CAUTION l When you use the serial cable to connect the controller subrack to the maintenance terminal you need to connect the serial cable to the maintenance terminal then to the controller subrack When you disconnect the controller subrack from the maintenance terminal you need to disconnect the serial cable from the controller subra...

Page 26: ...ick OK Figure 1 4 Connect To Step 3 The COM1 Properties dialog box is displayed Set the parameters as shown in Figure 1 5 and then click OK The interface of the HyperTerminal is displayed 1 Process of the Initial Configuration OceanStor S5600 Storage System Initial Configuration Guide 1 12 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2009 09 30 ...

Page 27: ... the information as shown in Figure 1 6 Figure 1 6 Interface for the successful connection between the controller subrack and the maintenance terminal OceanStor S5600 Storage System Initial Configuration Guide 1 Process of the Initial Configuration Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 1 13 ...

Page 28: ...tor S5000 Series Storage System Command Reference Figure 1 7 Interface for a successful login Step 6 System authentication succeeds and you log in to the CLI End 1 6 2 Logging in to the CLI Through the Management Network Port This topic describes how to log in to the CLI through the management network port Context After connecting the maintenance terminal to the management network port of the cont...

Page 29: ...t name or IP addressHost Name or IP address Select Protocol as SSH NOTE The default IP addresses of the management network port is 192 168 128 101 16 and 192 168 128 102 16 Step 3 Click Open and the displayed interface is as shown in Figure 1 9 OceanStor S5600 Storage System Initial Configuration Guide 1 Process of the Initial Configuration Issue 02 2009 09 30 Huawei Proprietary and Confidential C...

Page 30: ...e the password to ensure the system security The system allows the password of theadmin user to be null Theadmin user has the permission to change the password of the viewer user The viewer user cannot change password by himself herself You can change the password on the CLI only For details on how to change the password see the OceanStor S5000 Series Storage System Command Reference 1 Process of ...

Page 31: ...1 3 describes the syntax and parameters of the chgctrlip command Table 1 3 Syntax and parameters of the command Syntax Description chgctrlip c controller ID a IP address s subnet mask g gateway l c controller ID controller ID The value is aa or bb l a IP address the IP address of the management network port on the controller l s subnet mask the subnet mask l g gateway the gateway a controller A b ...

Page 32: ...ensure the normal display of the OSM3 0 interface necessary settings must be done for the IE before you log in to the OSM3 0 Prerequisite l To access the storage system normally it is recommended to install Windows 2003 or Windows XP on the maintenance terminal and use IE 6 0 or a later version l If Windows 2003 is used the security level of the IE must be changed from high to middle or lower Proc...

Page 33: ...ls Internet Options 2 Click the Advanced tab 3 In Multimedia select Play videos in web pages 4 In Multimedia select Play sounds in web pages 5 Click OK The Internet Options dialog box is closed CAUTION On the Privacy tab page you can select a privacy setting for the internet zone by dragging the slider in the Settings area When you set the slider to Block All Cookies or High you may not log in to ...

Page 34: ...uggested to log in to the OSM3 0 Web UI through the management network port on the primary controller In this way the system can response quickly when you configure the storage system l The initial user name of the system administrator is admin The initial password is 123456 The initial user name of a common user is viewer The initial password is 123456 After the first login you need to modify the...

Page 35: ...age Step 5 Enter a user name in user Step 6 Enter the password in password Step 7 Press Enter or click Login End 1 8 Configuring the Storage System Introduce how to configure the S5600 storage system For details on the initial configuration of the S5600 see 3 Configuring the Storage System 1 9 Setting Additional Information Introduce how to set additional information for the S5600 For details on h...

Page 36: ......

Page 37: ...ns Introduce the preparations made before setting up a management environment including list of devices and networking configuration 2 2 Networking Introduce the typical networking of S5600 OceanStor S5600 Storage System Initial Configuration Guide 2 Setting Up the Management Environment Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 2 1 ...

Page 38: ...able 2 1 lists the devices required for the typical networking of the S5600 Table 2 1 Devices required for typical networking Device Description S5600 l S5600 controller subrack l D200 disk subrack AS The ASs are installed with Windows Linux IBM AIX HP Unix SUN Solaris NOTE l You can choose the AS that is installed with the cluster software or that is configured with the cluster function l When S5...

Page 39: ...ed configurations for the devices Device Recommended Configuration AS Huawei server blade BH22 l Two Intel Xeon 3 GHz processors l Two 1 GB memory bars IBM Server 7969 IEF l Two AMD opteron 252 2 6 GHz processors l Two 1 GB memory bars DELL PE2950 l Two Xeon 2 6 GHz processors l Two 1 GB memory bars FC HBA The FC HBA and its driver are provided with the AS on delivery NOTE For details on how to co...

Page 40: ...working of S5600 NOTE For easy to describe the S5600 storage device in the networking diagram of this chapter refers to the S5600 controller subrack that is not connected to any D200 disk subrack 2 2 1 Networking Principle Proper networking is the basis to ensure that storage devices and services run properly You need to choose the networking as required 2 2 2 Typical Networking of the S5600 Contr...

Page 41: ... the small zone mode In other words the two ports of one path through the FC switch form one zone l Only one path is set from one FC HBA of an AS to one controller of the S5600 controller subrack l To avoid the single point failure of the FC switch one controller of the S5600 controller subrack must be connected to two FC switches The following sections describe the typical networking of the S5600...

Page 42: ...erefore the AS uses only one path to connect to the S5600 controller subrack FC host ports You do not need to install the UltraPath NOTE In this networking if the UltraPath is installed on the AS the I O performance of the AS falls In this networking when you create a logical unit number LUN you need to set the ascription controller of the LUN on the controller that connects to the host path NOTE ...

Page 43: ...traPath UltraPath Fabric 1 Fabric 2 In Fabric the switch ports at the two ends of a dashed line form one zone FC HBA 1 port1 FC HBA 2 port1 FC HBA 3 port1 FC HBA 4 port1 Optical fiber S5600 controller subrack FC host ports 00010203 00010203 10111213 10111213 CAUTION In networking one FC HBA port of an AS can use only one path to reach a controller According to this feature you can allocate the zon...

Page 44: ... the storage device side are configured to 192 168 0 0 19 l The two iSCSI host ports on each controller of the S5600 controller subrack FC and iSCSI host ports are independent of each other l The networking realizes the one subnet model A Ethernet switch can form a subnet Two or more Ethernet switches can also be cascaded to form a subnet l Dividing the ports on the Ethernet switches to virtual LA...

Page 45: ...0 IP address of host port 11 on controller A 192 168 12 100 Subnet mask 255 255 255 0 IP address of host port 10 on controller B 192 168 11 101 Subnet mask 255 255 255 0 IP address of host port 11 on controller B 192 168 12 101 Subnet mask 255 255 255 0 IP address of port 1 on NIC 1 192 168 11 150 Subnet mask 255 255 255 0 IP address of port 1 on NIC 2 192 168 12 150 Subnet mask 255 255 255 0 IP a...

Page 46: ... Figure 2 4 Networking of AS with one FC HBA two NICs two subnets direct connection AS 3 AS 4 UltraPath UltraPath AS 1 AS 2 HBA 1 HBA 2 FC HBA 1 port 1 FC HBA 2 port 1 Subnet 1 Subnet 2 Controller A Controller B iSCSI host port FC host port NIC 1 port 1 NIC 2 port 1 NIC 3 port 1 NIC 4 port 1 Network cable Optical fiber S5600 controller subrack FC and iSCSI host ports 00010203 00010203 1011 1011 IP...

Page 47: ...NOTE l When you set up the two node system cluster environment the following examples are taken to describe how to set the IP addresses the IP addresses of the heartbeat network ports in the two node system are 10 147 0 0 16 the IP addresses of the service network segments on the storage device side are 192 168 0 0 19 the public network IP addresses are 129 20 0 0 19 l For Windows OSs the primary ...

Page 48: ... at the two ends of a dashed line form one zone IP address of port 1 on NIC 1 129 20 11 1 Subnet mask 255 255 224 0 IP address of port 1 on NIC 2 10 147 0 5 Subnet mask 255 255 0 0 IP address of port 1 on NIC 3 10 147 0 15 Subnet mask 255 255 0 0 IP address of port 1 on NIC 4 10 147 0 16 Subnet mask 255 255 0 0 IP address of port 1 on NIC 5 10 147 0 6 Subnet mask 255 255 0 0 IP address of port 1 o...

Page 49: ... UltraPath UltraPath FC HBA 1 port 1 FC HBA 4 port 1 Controller A Controller B S5600 controller subrack FC host ports 00010203 00010203 10111213 10111213 IP address of port 1 on NIC 1 129 20 11 1 Subnet mask 255 255 224 0 IP address of port 1 on NIC 2 10 147 0 5 Subnet mask 255 255 0 0 IP address of port 1 on NIC 3 10 147 0 15 Subnet mask 255 255 0 0 IP address of port 1 on NIC 4 10 147 0 16 Subne...

Page 50: ...Controller A Controller B 00010203 00010203 10111213 10111213 Cluster node main Cluster node backup Public network NIC 1 port 1 AS 1 AS 2 FC HBA 2 port 1 FC HBA 3 port 1 NIC 2 port 1 NIC 3 port 1 NIC 4 port 1 NIC 5 port 1 NIC 6 port 1 UltraPath UltraPath FC HBA 1 port 1 FC HBA 4 port 1 IP address of port 1 on NIC 1 129 20 11 1 Subnet mask 255 255 224 0 IP address of port 1 on NIC 2 10 147 0 5 Subn...

Page 51: ...wo Node Cluster by the S5600 Controller Subrack FC and iSCSI Host Ports Introduce the networking of the two node system cluster environment set up by the S5600 controller subrack FC and iSCSI host ports CAUTION When S5600 controller subrack FC and iSCSI host ports is set up in two node system cluster environment VCS cluster software in Linux is not compatible Figure 2 8 shows the networking of AS ...

Page 52: ...ontroller B 00010203 1011 00010203 1011 IP address of host port 10 on controller A 192 168 11 100 Subnet mask 255 255 255 0 IP address of host port 11 on controller A 192 168 12 100 Subnet mask 255 255 255 0 IP address of host port 10 on controller B 192 168 11 101 Subnet mask 255 255 255 0 IP address of host port 11 on controller B 192 168 12 101 Subnet mask 255 255 255 0 IP address of port 1 on ...

Page 53: ...C 14 129 20 12 11 Subnet mask 255 255 254 0 IP address of port 1 on NIC 15 192 168 11 151 Subnet mask 255 255 255 0 IP address of port 1 on NIC 16 192 168 12 151 Subnet mask 255 255 255 0 In Figure 2 8 ports are allocated into zones as follows l zone1 port1 and port5 l zone2 port1 and port6 l zone3 port2 and port5 l zone4 port2 and port6 l zone5 port3 and port7 l zone6 port3 and port8 l zone7 port...

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Page 55: ...e mapped to a physical AS unless a port has been added to this virtual host 3 6 Adding a Mapping Mapping a LUN to the host or the host group Then the host or the host group gains specified storage resources 3 7 Setting the iSCSI Host Port on the Controllers Only when correct parameters are set can the iSCSI host port of the controller be connected to the server 3 8 Setting the FC Host Port on the ...

Page 56: ...ication is enabled on the OSM3 0 main interface you need to use the CHAP authentication on the AS so that the AS can connect to the storage system This section describes how to enable CHAP authentication on a Windows AS and a Linux AS respectively 3 13 Using a LUN on an AS After a LUN is mapped to an AS you need to configure the LUN on the AS This section describes how to use the LUN on a Windows ...

Page 57: ... of the S5600 configured with FC host ports Log in to the OSM3 0 Start Create a RAID group Create a host group Create a LUN Log in to the AS Add a host Add a mapping Add a port Use a LUN on an AS End Set the FC host ports of the controllers NOTE The steps enclosed by dashed lines should be performed after you log in to the AS The other steps are performed on the OSM3 0 OceanStor S5600 Storage Syst...

Page 58: ...red with FC and iSCSI host ports Figure 3 2 Iinitial configuration flow chart of the S5600 configured with FC and iSCSI host ports Log in to the OSM3 0 Start Create a RAID group Create a host group Set the iSCSI host ports of the controllers Create a LUN Add a host Add a mapping Add a port End Log in to the AS Set up the connection from the AS to the controller Use a LUN on an AS Start the CHAP au...

Page 59: ...creating hot spare disks see the OceanStor S5000 Series Storage System OSM3 0 Help NOTE Generally the figures of OSM3 0 in this chapter show the S5600 controller subrack FC and iSCSI host ports 3 2 1 RAID Levels Supported by the System The S5600 storage system support five RAID levels RAID 0 RAID 1 RAID 5 RAID 6 and RAID 10 You can select a RAID level according to the results of comparison between...

Page 60: ...isk in the RAID group When a member disk in the RAID group fails the data on the other member disks in the RAID group can be used to reconstruct the data on the faulty member disk RAID 6 produces the check data by performing two independent logical operations and distributes the check data separately on each member disk in the RAID group RAID 6 allows the situation that two member disks are faulty...

Page 61: ...y Therefore a RAID 5 group has a low storage cost The disk usage in RAID 6 is n 2 n n is the number of member disks in the RAID group When the RAID group is composed of four disks the usage is the lowest only 50 The amount of the check data in RAID 6 is equal to the capacity of two disks therefore the storage cost of RAID 6 is higher than RAID 0 and RAID 5 and lower than RAID 1 and RAID 10 RAID 10...

Page 62: ...ks of the S5600 controller subrack are the FC disks In the S5600 the FC hard disks the serial advanced technology attachment SATA hard disks and the SSD hard disks can be inserted interchangeably in the same subrack or between different subracks but it is recommended that use hard disk of the same type for the same subrack In addition the RAID group cannot be built on hard disks of different types...

Page 63: ...isplayed See Figure 3 4 Figure 3 4 Creating a RAID 5 group Step 3 Enter the parameters for creating a RAID 5 group Table 3 2 describes the parameters for creating a RAID 5 group Table 3 2 Parameters for creating a RAID 5 group Parameter Description Name This parameter indicates the name of the RAID group Note the following when you set the parameter l The name must be unique l The name can contain...

Page 64: ...and performance such as the database and the server You can create RAID 6 conveniently through the OSM3 0 Procedure Step 1 Click Service in the OSM3 0 Expand the RAID Group node in the Service navigation tree ClickRAID Group Management Step 2 On the right of the RAID Group Management interface click Create RAID Group The Create RAID Group interface is displayed See Figure 3 5 Figure 3 5 Create RAI...

Page 65: ...en creating RAID 6 you need to choose at least four free hard disks Step 5 Click OK The Confirm dialog box is displayed Step 6 Click OK When the system prompts Operation succeeded the operation is complete End 3 2 5 Creating a RAID 10 Group RAID 10 is suitable for services that requires high performance and reliability such as database servers RAID 10 can be created conveniently on the OSM3 0 Proc...

Page 66: ... of member disks When setting this parameter note that l This parameter only applies to the RAID 10 level l The value must be a divisor of the number of member disks in the RAID group except 1 For example for a RAID 10 group consisting of eight hard disks you can set the number of mirroring disks to 2 4 or 8 If it is set to 2 two hard disks form a mirroring group These two hard disks are in 1 1 re...

Page 67: ...t CAUTION l When LUNs are created the number of LUNs on the same RAID group cannot exceed 1024 Otherwise the operation to the storage system may be affected l To create 1000 or more LUNs in the system you are suggested to create LUNs and configure services in batch For example you can create 200 LUNs add mappings to the host and then create and configure other LUNs in batch Procedure Step 1 On the...

Page 68: ...ce is displayed See Figure 3 8 Figure 3 8 Create LUN Note the following items when selecting owning controller l When the hard disk type of RAID Group is SSD all created LUNs must be located in one owning controller 3 Configuring the Storage System OceanStor S5600 Storage System Initial Configuration Guide 3 14 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2009 ...

Page 69: ...s to NOTE The total number of LUNs in all RAID groups can be up to 2048 Capacity This parameter indicates the capacity of the created LUN Note the following when you set the parameter l The maximum capacity is the remaining capacity of the RAID group that the LUN belongs to l The unit can be MB GB or TB NOTE After you enter the capacity in the MB GB TB unit field select 0 KB or 512 KB Owning Contr...

Page 70: ...d in the read application of a single stream or when you do not know whether data is read in sequence For example it is used in reading or writing a file l No prefetch The prefetch function is disabled The strategy is used in a random read application or prefetched read application such as a database application NOTE If you are familiar with the applications of the product set this parameter to Co...

Page 71: ... deleted l The name of the default host group cannot be changed CAUTION When you set up the two node system cluster environment note that l The host corresponding to the primary node of the cluster and that corresponding to the secondary node of the cluster must be added to the same host group l Only one cluster is created in one host group Procedure Step 1 On the OSM3 0 main interface click Mappi...

Page 72: ... parameter indicates the OS type of the hosts in the host group A host can install Windows 2003 Solaris HP UX AIX and Linux Step 4 Click OK The Confirm dialog box is displayed Step 5 Click OK The system displays Operation succeeds End 3 5 Adding a Host The host displayed on the OSM3 0 interface is virtually created for easier management It cannot be mapped to a physical AS unless a port has been a...

Page 73: ...This parameter indicates the name of the host group that the host belongs to Default parameters cannot be modified OS This parameter indicates the OS type of the host The OS is the same as the OS of the host group that the host belongs to Default parameters cannot be modified New Host Name This parameter indicates the name of the host When setting this parameter note that l The name contains only ...

Page 74: ...m you can map a LUN to the host group instead of any host in the host group l This system supports up to 2048 mappings Adding a mapping occupies a system license See the following details l Adding a mapping for the default host group does not occupy a system license l Adding a mapping for other host groups and hosts occupies one system license only at the first time If all the mappings on the host...

Page 75: ...p 4 Select a device LUN and click Add Mapping The Confirm dialog box is displayed NOTE You can maximally map 10 LUNs to a host or host group once But when you adds several mappings the LUN ID selected in Step 3 is invalid The system automatically allocates a host LUN ID Step 5 Click OK The system displays Operation succeeds OceanStor S5600 Storage System Initial Configuration Guide 3 Configuring t...

Page 76: ...cted services Perform the operation with caution l The IP addresses of the four iSCSI host ports on controller must be configured in different subnets In addition none of the IP addresses can be in the same network segment as the IP address of the management network port l The IP addresses of iSCSI host ports must be configured in a different network segment from the IP address 192 168 2 0 24 of t...

Page 77: ...n clickIP Clear the IP address and subnet mask configured previously can be cleared Step 2 Select Address 10 for example host port 10 on controller A Click IP Configuration The IP Configuration interface is displayed See Figure 3 14 Figure 3 14 IP Configuration Step 3 Set the parameters of the iSCSI host port Table 3 8 describes the parameters of an iSCSI host port OceanStor S5600 Storage System I...

Page 78: ...ices can be accessed by the AS that is not in the same network segment as themselves If the IP address of the NIC port on the AS is in a different subnet from the IP address of the iSCSI host port on the controller go to Step 4 if the two IP addresses are in the same subnet go to Step 6 Step 4 Click Add Route The interface is displayed See Figure 3 15 Figure 3 15 Adding a Route NOTE In Figure 3 15...

Page 79: ...is displayed Step 7 After confirming that no information is wrong enter yes Click OK The system displays Operation succeeds End 3 8 Setting the FC Host Port on the Controllers To ensure the optimal port performance and the connection of the controller to the server the rate of the FC host port must be set correctly 3 8 1 Modifying the Port Rate To ensure the optimal port performance and the connec...

Page 80: ...n tree and then choose FC Host Port The FC Host Port page is displayed as shown in Figure 3 16 Figure 3 16 FC host port NOTE For the relationship between the FC host port on a controller and the FC host port number in Figure 3 16 see Figure 2 2 Step 2 Select an FC host port for example host port 00 on controller A Click Modify Rate The Modify Rate page is displayed as shown in Figure 3 17 Figure 3...

Page 81: ...Arbitrated loop Procedure Step 1 On the OSM3 0 main interface click Device Expand the Controller Subrack 00 node in the Device navigation tree and then choose FC Host Port The FC Host Port page is displayed as shown in Figure 3 18 Figure 3 18 FC host port NOTE For the relationship between the FC host port on a controller and the numbers of the FC host ports in Figure 3 18 see Figure 2 2 Step 2 Sel...

Page 82: ...device serves as control node of the loop Point to point 1 The simplest topological structure 2 Allow the communications between nodes 3 A host can connect to a disk array through fabric channel and then realize the application of DAS Switch 1 When connecting servers and storage devices use the topological structure based on the FC switch 2 Switches can connect with each other and construct a high...

Page 83: ...u can perform the following steps to set up the connection from the AS to an iSCSI host port on the controller For other Windows operating systems adjust the operation process according to the actual conditions Procedure Step 1 Log in to the Windows AS as a user of the administrator group Step 2 Install the Microsoft iSCSI Initiator program NOTE l After installation please restart the AS l The Mic...

Page 84: ...hyphen Do not use invalid characters to name the initiator node Otherwise the AS fails to connect storage devices l For multiple ASs connected to a controller the initiators must be named differently Step 4 Choose Discovery tab Click Add The Add Target Portal dialog box is displayed See Figure 3 21 3 Configuring the Storage System OceanStor S5600 Storage System Initial Configuration Guide 3 30 Hua...

Page 85: ...I host port on a controller see 3 7 Setting the iSCSI Host Port on the Controllers Step 6 Click OK In the Target Portals group box you can see the information of the added target See Figure 3 22 Figure 3 22 Check target ports OceanStor S5600 Storage System Initial Configuration Guide 3 Configuring the Storage System Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technolog...

Page 86: ...gets area box click an available target and then click Log On The Log On to Target dialog box is displayed See Figure 3 24 Figure 3 24 Log on to target 3 Configuring the Storage System OceanStor S5600 Storage System Initial Configuration Guide 3 32 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2009 09 30 ...

Page 87: ... if you do not select Enable multi path you need to keep the default settings in Figure 3 25 Choose Default from the Local adapter Source IP and Target Portal drop down list boxes l In Figure 3 24 if you select Enable multi path you need to set the parameters in Figure 3 25 as choose Microsoft iSCSI Initiator from the Local adapter drop down list box choose the IP address of the NIC port on the AS...

Page 88: ... Step 13 Click OK NOTE If the connection between ASs and the storage system succeeds to be set up you can see Port Connection Status of the AS displays Connected on the Add Port interface of the Web UI For details see 3 10 Adding a Port End 3 9 2 Linux AS A Linux AS can connect to the controller subrack and read write the storage data after you do the following configuration 3 Configuring the Stor...

Page 89: ...b iscsi etc init d iscsi etc initiatorname iscsi etc iscsi conf sbin iscsi device sbin iscsi id sbin iscsi iname sbin iscsi ls sbin iscsi mountall sbin iscsi umountall sbin iscsid sbin rciscsi usr share doc packages linux iscsi usr share doc packages linux iscsi COPYING usr share doc packages linux iscsi README usr share man man1 iscsi ls 1 gz usr share man man5 iscsi bindings 5 gz usr share man m...

Page 90: ... Figure 3 28 Press Alt O to confirm the operation Figure 3 28 Package search 4 Select linux iscsi See Figure 3 29 Press Alt A to confirm the operation 3 Configuring the Storage System OceanStor S5600 Storage System Initial Configuration Guide 3 36 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2009 09 30 ...

Page 91: ... initiator name of the iSCSI port behind InitiatorName l The initiator name contains numbers letters full stops hyphens and colons The first character cannot be a hyphen Do not use invalid characters to name the initiator node Otherwise the AS fails to connect storage devices l For multiple ASs connected to a controller the initiators must be named differently Step 6 Press ESC to exit from the fil...

Page 92: ...ected on the Add Port interface of the Web UI For details see 3 10 Adding a Port End 3 10 Adding a Port The host on the OSM3 0 interface cannot be mapped to an AS unless a port has been added to it Prerequisite CAUTION When setting up the two node system cluster environment you need to add ports to the two hosts created in 3 4 Creating a Host Group and the two hosts with added ports correspond to ...

Page 93: ...rts of the host is displayed See Figure 3 31 Figure 3 31 Port Step 3 Click Add Port The Add Port interface is displayed See Figure 3 32 OceanStor S5600 Storage System Initial Configuration Guide 3 Configuring the Storage System Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 39 ...

Page 94: ...pe This parameter indicates the type of the port The port type is FC or iSCSI Port Name This parameter indicates the name of the port When setting this parameter note that l The port name contains only letters numbers underscores _ and hyphens and the first character cannot be a hyphen l The name contains 1 to 32 characters 3 Configuring the Storage System OceanStor S5600 Storage System Initial Co...

Page 95: ...ost ports when adding a port to a host you can view the displayed information by clicking Connected iSCSI Port in the Mapping navigation tree Then choose the port from the Port Information drop down list box based on the information about the connected iSCSI host ports Port Connection Status The parameter indicates the connection status between the storage device and the ascription host of the por...

Page 96: ...the CHAP authentication is enabled only these users can access the storage system Prerequisite Up to 128 CHAP users can be created Procedure Step 1 On the OSM3 0 main interface click Mapping In the Mapping navigation tree click CHAP User The CHAP User Information interface is displayed See Figure 3 33 Figure 3 33 CHAP user information Step 2 Click Create The Create CHAP User interface is displayed...

Page 97: ...The length of this password is 12 16 characters Confirm User Password Confirms the CHAP user password This password must be consistent with the user password Its length is 12 16 characters Step 4 Click OK The Confirm dialog box is displayed Step 5 Click OK The system prompts Operation succeeds End 3 11 2 Setting a CHAP User Set a CHAP user for an iSCSI port Prerequisite Before setting a CHAP user ...

Page 98: ... 2 Select the iSCSI port for which a CHAP user is to be set Click Set CHAP User The Added CHAP User interface is displayed See Figure 3 36 Figure 3 36 Added CHAP users Step 3 Click Add User The Add User interface is displayed See Figure 3 37 3 Configuring the Storage System OceanStor S5600 Storage System Initial Configuration Guide 3 44 Huawei Proprietary and Confidential Copyright Huawei Technolo...

Page 99: ...On the OSM3 0 main interface click Mapping Then in the Mapping navigation tree click iSCSI port The iSCSI port interface is displayed See Figure 3 35 The information about all the iSCSI ports is displayed in the interface Step 2 Select the iSCSI port whose CHAP authentication is Available Click Set CHAP User The Added CHAP User interface is displayed See Figure 3 36 Step 3 Click Start CHAP Authent...

Page 100: ...s Server 2003 as an example You can perform the following steps to set up the connection from the AS to an iSCSI host port on the controller For other Windows operating systems adjust the operation process according to the actual conditions Procedure Step 1 Log in to the AS as a user of the administrator group Step 2 Run the Microsoft iSCSI Initiator Click the Targets tab See Figure 3 26 Step 3 Ch...

Page 101: ... example Username CHAP_user1 and Password 112233445566 For details on the CHAP user see 3 11 1 Creating a CHAP User l When you use CHAP authentication on an AS in Linux the user name and password must be added before DiscoveryAddress Otherwise when the target requires CHAP authentication the initiator refuses the connection Step 3 Enter the command wq to save the setting and exit the file editing ...

Page 102: ...og in to the Windows AS as a user of the administrator group Step 2 Choose Start Control Panel Administrative Tools Computer Management The Computer Management window is displayed Step 3 Check whether the AS is installed with the UltraPath In the navigation tree on the left of the Computer Management window choose System Tools Device Manager Then expand the SCSI and RAID controllers node on the ri...

Page 103: ...on the right l Figure 3 39 shows the situation that the disk capacity is not more than 2 TB Figure 3 39 Viewing the logical disks l Figure 3 40 shows the situation that the disk capacity is larger than 2 TB OceanStor S5600 Storage System Initial Configuration Guide 3 Configuring the Storage System Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 49 ...

Page 104: ... and click scan for hardware changes When the scanning is complete perform Step 4 Step 5 Initialize a logical disk Right click Disk 1 l Figure 3 41 shows the situation that the disk capacity is not more than 2 TB 3 Configuring the Storage System OceanStor S5600 Storage System Initial Configuration Guide 3 50 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd Issue 02 2009 09 ...

Page 105: ...n that the disk capacity is larger than 2 TB Figure 3 42 Menu for initializing a disk OceanStor S5600 Storage System Initial Configuration Guide 3 Configuring the Storage System Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 51 ...

Page 106: ... to the dynamic disks after initializing disks Step 7 Select the check box before Disk 1 Click OK to complete the disk initialization NOTE l To initialize other logical disks repeat Step 5 to Step 7 l If the disk capacity is not more than 2 TB go to Step 10 If the disk capacity is larger than 2 TB go to Step 8 Step 8 Right click Disk 1 to convert a normal disk to the GPT disk See Figure 3 44 3 Con...

Page 107: ... to GPT Disk See Figure 3 45 Figure 3 45 Convert to GPT Disk is finished OceanStor S5600 Storage System Initial Configuration Guide 3 Configuring the Storage System Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 3 53 ...

Page 108: ...whether the AS is installed with the UltraPath Enter rpm q UPforLinux l If the software is not installed the following information is displayed package UpForLinux 11 01 01 T06 1 is not installed l If the software is installed the following information is displayed UpForLinux 11 01 01 T06 1 NOTE This section takes 11 01 01 T06 1 as an example to describe the UltraPath version The version of the Ult...

Page 109: ...ht run the hot_add command repeatedly to scan new LUNs Step 4 Enter the fdisk 1 command to view the information about all the hard disks of the current AS The following information is displayed Disk dev sda 80 0 GB 80026361856 bytes 255 heads 63 sectors track 9729 cylinders Units cylinders of 16065 512 8225280 bytes Device Boot Start End Blocks Id System dev sda1 1 1275 10241406 82 Linux swap dev ...

Page 110: ...g journal 8192 blocks done Writing superblocks and filesystem accounting information done This filesystem will be automatically checked every 39 mounts or 180 days whichever comes first Use tune2fs c or i to override Step 7 Run the following command to create a directory Then assign a name to the directory as required mkdir directoryname Step 8 Run the following command to mount the device to the ...

Page 111: ...n 4 1 Setting the System Information Introduce how to set the system information for the S5600 4 2 Setting the Alarm Information Introduce how to set the alarm information for the S5600 OceanStor S5600 Storage System Initial Configuration Guide 4 Setting Additional Information Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 4 1 ...

Page 112: ...evice name displayed on an AS By modifying the device name you can manage the storage device easily Context NOTE This operation applies to only the additional information settings of the S5600 controller subrack FC and iSCSI host ports NOTE The value of Target Name in the Microsoft iSCSI Initiator program follows that of the iSCSI Device Name on the OSM3 0 main interface the symbols can contain le...

Page 113: ...er a name for the iSCSI device and then click OK The Confirm dialog box is displayed Step 4 Enter yes Click OK The system displays Operation succeeds End 4 1 2 Modifying the Name and the Location The system name indicates the system functions and the location indicates the physical addresses of storage devices OceanStor S5600 Storage System Initial Configuration Guide 4 Setting Additional Informat...

Page 114: ...e system displays Operation succeeds End 4 1 3 Switching Over Primary and Secondary Controllers Introduce how to switch over primary and secondary controllers Context NOTE You can switch over the primary and secondary controllers only when the system is configured with two controllers CAUTION The interval between two consecutive primary secondary switchover operations is at least five minutes When...

Page 115: ...lures and logs Context When the time on the S5600 is different from the time on the maintenance terminal that is the user client you can synchronize the time on the maintenance terminal to that on the S5600 CAUTION When the time difference between the system and the maintenance terminal exceeds five minutes you can synchronize the system time Procedure Step 1 On the OSM3 0 main interface click Sys...

Page 116: ...nd process the alarms of the storage system in good time 4 2 1 Setting the Alarm Information When setting a mailbox for alarms you can set whether to send a notification of an alarm by a mail the IP address of the Simple Mail Transfer Protocol SMTP server mailbox of the sender severity of alarms and account of the receiver Prerequisite CAUTION To implement the function of sending alarm emails you ...

Page 117: ...tocol Alarm information can be sent to receiver emails by using the SMTP server Sender Email This parameter indicates the sender email Alarm Severity for Sending the Email This parameter indicates the alarm severity for sending notification emails The options are Critical Major Minor and Warning For example if choose Major the system sends critical alarms and major alarms The SMTP server requires ...

Page 118: ...The Confirm dialog box is displayed Step 5 Click OK The system displays Operation succeeds End 4 2 2 Setting the Trap IP Address You can modify the trap IP address and port number so that alarms can be sent to the specified AS or maintenance terminal Procedure Step 1 On the OSM3 0 main interface click Alarm The Current Fault interface is displayed In the Alarm navigation tree click Configuration O...

Page 119: ... Alarm sound on the client If the button on the Set the alarm sound on the client bar is in the On state the alarm sound is closed No alarm sound is played when a fault occurs in the system l Alarm buzzer on the server If the button on the Server Alarm Buzzer Settings bar is in the On state the alarm sound is closed The alarm buzzer of controller subrack does not buzz when a fault occurs in the sy...

Page 120: ... Close Sound but generates no sound NOTE l You can close the alarm buzzer through the buzzer mute button on the DIP switch board of the controller If new or existing emergent alarms persist after 12 hours the buzzer mute button will become transient and buzz l If the button on the Alarm Sound on the Client bar is in the On state the alarm sound button in the upper right corner of the interface gen...

Page 121: ...em works with single controller l If the sending channel status is Open you can set it to Close After that you cannot set the status to Open again l If the status of the sending channel is Close you cannot set it to Open Procedure Step 1 On the OSM3 0 main interface click Alarm The Current Fault interface is displayed In the Alarm navigation tree click Configuration Operation The Alarm Email inter...

Page 122: ...ding alarm short messages on the serial port of controller A Only when the channel status is Open the alarm short message can be sent through the serial port In the meantime the debugging function of the serial port is disabled Sending Channel of Controller B Indicates whether to enable the function of sending short messages notifying alarms through the serial port of controller B Only when the ch...

Page 123: ...e phone numbers separate them with semicolons Step 4 Click OK The Confirm dialog box is displayed Step 5 Click OK The system displays The command is run please wait End OceanStor S5600 Storage System Initial Configuration Guide 4 Setting Additional Information Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 4 13 ...

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Page 125: ... daily maintenance or troubleshooting A 3 How to Obtain Help from Website Huawei provides users with timely and efficient technical support through the regional offices secondary technical support system telephone technical support remote technical support and onsite technical support A 4 Ways to Contact Huawei Huawei Technologies Co Ltd provides customers with comprehensive technical support and ...

Page 126: ...1 2 Making Debugging Preparations When you contact Huawei for help the technical support engineer of Huawei might assist you to do certain operations to collect information about the fault or rectify the fault directly Before contacting Huawei for help you need to prepare the boards port modules screwdrivers screws cables for serial ports network cables and other required materials A 2 How to Use ...

Page 127: ...d service For any assistance contact our local office or company headquarters Huawei Technologies Co Ltd Address Huawei Industrial Base Bantian Longgang Shenzhen 518129 People s Republic of China Website http www huawei com Telephone number 86 755 28780808 Customer Service Center Phone 0086 755 28560000 4008302118 Huawei Service fax 0086 755 28560111 Service E mail support huawei com OceanStor S56...

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Page 129: ...m rate of signal state changes per second on a communications circuit In low speed communications each signal state corresponds to a code bit then the baud rate and the bit rate are the same that is the reciprocal of code bits in one second Bit error rate The percentage of bits that have errors relative to the total number of bits received in a transmission Boundary scan A test methodology that us...

Page 130: ...ge CloneGroup The clone group includes one master LUN and at most eight slave LUNs Coffer A technology for ensuring data security and integrity in the OceanStor storage system The hard disks in slots 0 to 3 serving as coffers which store the data of system configuration data of alarm logs and the data in the cache that is not written to the disk when the system power is off for emergency and alarm...

Page 131: ... service data in RAID groups Defragment The process of rewriting LUN data on disks which helps to continue the unoccupied free space among LUNs Degraded RAID group When member disk in a RAID group fails part or all of the redundancy is lost Delete RAID group To delete a RAID group so that member disk in a RAID group becomes a free disk DIP switch board It is used to adjust the FC cascading rate an...

Page 132: ... data frame route port This kind of port is transparent for its upper layer protocol Failback The recovery process of transferring the load of the faulty component to the backup components Failed RAID group The number of failed member disk in a RAID group exceeds the maximum number which causes data loss Failover The system component with peer functions replaces a faulty component For example if a...

Page 133: ...lobal hot spare disk A type of hot spare disk A global spare disk can serve as the spare disk for multiple RAID groups of an array while a local hot spare disk can only serve as the spare disk for only one RAID group GSM modem A wireless modem used to send the information about alarms H Hard disk tray The tray that bears the hard disk Heartbeat cable The heartbeat cable is a dedicated line on the ...

Page 134: ... indicating the operations reading data into the memory and writing data to other places from computer memory Inband management A method of transmission between the management control information on the network and the bearer service information on the user network through the same logical channel Inband management enables users to manage disk arrays through commands Management commands are sent t...

Page 135: ...logic units which process different I O commands Each logic unit inside an array controller corresponds to a virtual disk Logical unit number The SCSI identifier of the internal logical unit of a target Loose coupling A system based on messages in which the client and the remote services do not know how the peer side is realized The communication between the client and the services is based on mes...

Page 136: ...the stripe unit size dynamically To modify the stripe unit size without interrupting the normal services of LUN N N_Port A port that connects a node to the optical network or another node The N_Port of the node connects to the F_Port of the optical network or the N_Port of another node The N_Port handles the creation and detection of a message unit and input or output the packages which connect to...

Page 137: ...th The actual path from the HBA card of the application server to the front end host port of storage arrays Regardless of switches on the path the physical path is only decided by the corresponding relation between the host HBA card and the array port Port module Port module connects various types of front end host port such as the front end host ports of SAS FC and iSCSI Power failure protection ...

Page 138: ...Array of Independent Disks A family of techniques for managing multiple disks to deliver desirable cost data availability and performance characteristics to host environments Redundant copy When the system monitors that a member disk in the RAID groups is about to fail the system copies the data in the disk to a hot spare disk This technology is called redundant copy Repair inconsistent stripe To ...

Page 139: ...n point time Standby network port In relation to the active network port the standby network port is a redundant network port on an AS When the active network port fails the standby network port is activated to work Storage controller The component performs the following functions operation conversion RAID LUN mapping disk striping setting and other service and fault alarm It consists of the contr...

Page 140: ...nterconnection relationship among the components from the viewpoint of communication but the topological structure does not specify the exact locations of components and the interconnection mode Transfer the level of RAID group dynamically To transfer the level of RAID group dynamically without interrupting the normal services of RAID group Trap A type of SNMP message that indicates the occurrence...

Page 141: ...ned to service Data corruption can occur if member data and parity become inconsistent due to the array failure resulting in a false regenerating when data failed member disk is subsequently requested by an application Write back cache A cache technology When the write operation is completed the data continues to be stored in the cache and therefore the operation of writing the data to disks will ...

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Page 143: ...fiber channel arbitrated loop G GE Gigabit Ethernet H HBA host bus adapter HTTPS Hypertext Transfer Protocol Secure I IE Internet Explorer IP Internet Protocol iSCSI internet small computer systems interface OceanStor S5600 Storage System Initial Configuration Guide C Acronyms and Abbreviations Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd C 1 ...

Page 144: ...rea network SAS serial attached SCSI SATA serial advanced technology attachment SCSI small computer systems interface SFP Small Form Factor Pluggable SMTP Simple Mail Transfer Protocol SP Service Pack SSD solid state drive hard disk U UI user interface V C Acronyms and Abbreviations OceanStor S5600 Storage System Initial Configuration Guide C 2 Huawei Proprietary and Confidential Copyright Huawei ...

Page 145: ...er VLAN Virtual LAN W WWN World Wide Name OceanStor S5600 Storage System Initial Configuration Guide C Acronyms and Abbreviations Issue 02 2009 09 30 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd C 3 ...

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