HP StorageWorks Scalable File Share - Manual (Page 4)

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4 Viewing system information
4.1 Viewing server information .........................................................................................................4-2
4.1.1 Server information after system parameter is changed ...............................................................4-6
4.2 Viewing file system information ...................................................................................................4-6
4.3 Viewing OST service information...............................................................................................4-10
4.4 Viewing LUN information .........................................................................................................4-11
4.5 Viewing array information........................................................................................................4-13
4.6 Viewing event logs ..................................................................................................................4-16
4.6.1 Using the show log command ..............................................................................................4-16
4.6.1.1 Event filters....................................................................................................................4-17
4.6.1.2 Event severity ................................................................................................................4-17
4.6.1.3 Event facility..................................................................................................................4-17
4.6.1.4 Examples of event filters..................................................................................................4-18
4.6.2 Capturing the system event log in a file .................................................................................4-18
4.7 Viewing performance statistics ..................................................................................................4-19
4.7.1 Overview of the collectl utility...............................................................................................4-19
4.7.2 Overview of the information gathered by the collectl utility.......................................................4-20
4.7.3 Using the Web server to view information gathered by the collectl utility ...................................4-21
4.7.3.1 Viewing overall throughput to OST devices from a server....................................................4-23
4.7.3.2 Viewing throughput to each OST device from a server........................................................4-23
4.7.3.3 Viewing throughput to OST devices from network devices on a server ..................................4-24
4.7.3.4 Viewing RPC transfer sizes or disk I/O transaction sizes .....................................................4-25
4.7.4 Viewing information in the /proc file system ..........................................................................4-26
5 Creating and modifying file systems
5.1 Creating a file system — EVA4000 storage..................................................................................5-2
5.1.1 Step 1: Identifying unassigned LUNs — EVA4000 storage ........................................................5-2
5.1.2 Step 2: Matching array numbers to physical arrays — EVA4000 storage....................................5-3
5.1.3 Step 3: Setting roles, preferred controllers, and disk group information for LUNs — EVA4000
storage................................................................................................................................5-4
5.1.4 Step 4: Identifying file system information — EVA4000 storage .................................................5-5
5.1.4.1 OST Service ordering — EVA4000 storage ........................................................................5-9
5.1.5 Step 5: Using the create filesystem command — EVA4000 storage ..........................................5-10
5.1.5.1 Using the create filesystem command in interactive mode — EVA4000 storage .....................5-10
5.1.5.2 Using the create filesystem command in scripted mode — EVA4000 storage ........................5-13
5.1.6 Step 6: Initializing the EVA4000 LUNs for file-system access....................................................5-13
5.1.7 Step 7: Backing up the system database..............................................................................5-14
5.2 Creating a file System — SFS20 storage ....................................................................................5-14
5.2.1 Step 1: Assigning roles to LUNs — SFS20 storage (optional) ...................................................5-14
5.2.2 Step 2: Identifying file system information — SFS20 storage ....................................................5-15
5.2.2.1 OST service ordering — SFS20 storage............................................................................5-19
5.2.2.2 Creating mirrored OST LUNs on SFS20 arrays ..................................................................5-20
5.2.3 Step 3: Using the create filesystem command — SFS20 storage ...............................................5-22
5.2.3.1 Using the create filesystem command in interactive mode — SFS20 storage..........................5-23
5.2.3.2 Using the create filesystem command in scripted mode — SFS20 storage .............................5-26
5.2.4 Step 4: Backing up the system database................................................................................5-26
5.3 LUN Roles, used by, and preferred server changes......................................................................5-26
5.4 Operating a file system ............................................................................................................5-27
5.5 Recovering from failure of the create filesystem command ............................................................5-27
5.5.1 If the create filesystem command times out while configuring file system services ........................5-28
5.6 Modifying file system attributes .................................................................................................5-29
5.6.1 Adding OST services to a file system.....................................................................................5-30
5.6.1.1 Usable space on new OST services ..................................................................................5-31
5.6.2 Changing the preferred server for OST and MDS services .......................................................5-31
5.6.3 Modifying service mount options ..........................................................................................5-32
5.6.4 Modifying file system interconnects .......................................................................................5-33
5.6.5 Changing other file system attributes .....................................................................................5-35
5.6.6 Rewriting LDAP configuration data........................................................................................5-36