HP StorageWorks 4400 Enterprise Virtual Array user ... - BUSINESS IT

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Failure scenarios HP-UX Fault stimulus Server failure (host power-cycled) Switch failure (SAN switch disabled) Controller failure Controller restart Server path failure Storage path failure Failure effect Extremely critical event on UNIX. Can cause loss of system disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted, need mkfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted, need mkfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted, need mkfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted, need mkfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, replace cable, I/O continues. Without cable replacement job must be aborted; disk seems error free. Windows Server 2003, Windows 2000, and Windows XP Professional x32 74 Fault stimulus Server failure (host power-cycled) Switch failure (SAN switch disabled) Controller failure Controller restart Server path failure Storage path failure Single path implementation Failure effect OS runs a command called chkdsk when rebooting. Data lost, data that finished copying survived. Write delay, server hangs until I/O is cancelled or cold reboot. Write delay, server hangs or reboots. One controller failed, other controller and shelves critical, shelves offline. Volume not accessible. Server cold reboot, data lost. Check disk when rebooting. Controller momentarily in failed state, server keeps copying. All data copied, no interruption. Event error warning error detected during paging operation. Write delay, volume inaccessible. Host hangs and restarts. Write delay, volume disappears, server still running. When cables plugged back in, controller recovers, server finds volume, data loss.
Sun Solaris OpenVMS Fault stimulus Server failure (host power-cycled) Switch failure (SAN switch disabled) Controller failure Controller restart Server path failure Storage path failure Fault stimulus Server failure (host power-cycled) Switch failure (SAN switch disabled) Controller failure Controller restart Failure effect Failure effect Check disk when rebooting. Data loss, data that finished copying survived. Short term: Data transfer stops. Possible I/O errors. Long term: Repeated error messages on console, no access to CDE. System reboot causes loss of data on disk. Must newfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Repeated error messages on console, no access to CDE. System reboot causes loss of data on disk. Must newfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Repeated error messages on console, no access to CDE. System reboot causes loss of data on disk. Must newfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Repeated error messages on console, no access to CDE. System reboot causes loss of data on disk. Must newfs disk. Short term: Job hung, data lost. Long term: Repeated error messages on console, no access to CDE. System reboot causes loss of data on disk. Must newfs disk. Nonclustered-Processes fail. Clustered—Other nodes running processes that used devices served from the single-path HBA failed over access to a different served path. When the single-path node crashes, only the processes executing on that node fail. In either case, no data is lost or corrupted. I/O is suspended or process is terminated across this HBA until switch is back online. No data is lost or corrupted. The operating system will report the volume in a Mount Verify state until the MVTIMEOUT limit is exceeded, when it then marks the volume as Mount Verify Timeout. No data is lost or corrupted. I/O fails over to the surviving controller. No data is lost or corrupted. I/O is suspended or process is terminated across this HBA until EVA is back online. No data is lost or corrupted. The operating system will report the volume in a Mount Verify state until the MVTIMEOUT limit is exceeded, when it then marks the volume as Mount Verify Timeout. HP StorageWorks 4400 Enterprise Virtual Array user guide 75
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HP StorageWorks 4400 Enterprise Vir
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Contents About this guide .........
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HBA configuration .................
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Figures 1 Storage system hardware c
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Tables 1 Document conventions .....
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Document conventions and symbols Ta
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HP websites For additional informat
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M6412 disk enclosures The M6412 dis
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1. Double 7-segment display: enclos
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Figure 7 Copper Fibre Channel cable
Page 22 and 23:
1. Battery 1 status LEDs 2. Fan 1 s
Page 24 and 25: Figure 12 shows the back view of th
Page 26 and 27: 1. Power supply 2. AC input connect
Page 28 and 29: to the loops in the main cabinet. C
Page 30 and 31: PDU 1 PDU 2 PDMs voltages are then
Page 32 and 33: 1. PDM 1 2. PDM 2 3. PDM 3 4. PDU 1
Page 34 and 35: 1 4 2 1. Front door 2. Rear door 3
Page 36 and 37: 36 EVA4400 hardware
Page 38 and 39: Setting Path A - Failover Only Path
Page 40 and 41: When creating a virtual disk, one c
Page 42 and 43: Connecting to the management module
Page 44 and 45: Figure 24 WOCP Configure controller
Page 46 and 47: Example 2. Restoring configuration
Page 48 and 49: 48 EVA4400 operation
Page 50 and 51: When you have confirmed that a comp
Page 52 and 53: Description SPS-CABLE ASSY, 4Gb COP
Page 54 and 55: 54 Replacing array components
Page 56 and 57: On HP-UX, Solaris, Microsoft Window
Page 58 and 59: 2 5 8 6 10 Figure 27 Single path HB
Page 60 and 61: Windows Server 2003 (32-bit) and Wi
Page 62 and 63: Risks Limitations NOTE: Single path
Page 64 and 65: HBA configuration Risks Limitations
Page 66 and 67: 2 Figure 32 OpenVMS configuration 1
Page 68 and 69: HBA configuration Risks Limitations
Page 70 and 71: Risks Limitations Host 2 is a dual
Page 72 and 73: 2 Figure 36 IBM AIX Configuration 1
Page 76 and 77: NetWare Fault stimulus Server path
Page 78 and 79: VMware Fault stimulus Server path f
Page 80 and 81: Status Code Value 7 Invalid Class 8
Page 82 and 83: Status Code Value 25 Objects in you
Page 84 and 85: Status Code Value 26 Parameter Obje
Page 86 and 87: Status Code Value 48 Security crede
Page 88 and 89: Status Code Value 65 Bad image head
Page 90 and 91: Status Code Value 86 Command View E
Page 92 and 93: 92 Error messages
Page 94 and 95: Class A equipment This equipment ha
Page 96 and 97: Canadien notice (avis Canadien) Cla
Page 98 and 99: Finnish notice French notice German
Page 100 and 101: ka š s iek rtas tiks otrreiz ji p
Page 102 and 103: Normaler Betrieb (normal operation)
Page 104 and 105: 104 Regulatory notices
Page 106 and 107: EVA cabinet measures and tolerances
Page 108 and 109: Load (percent) 100 80 50 20 100 80
Page 110 and 111: asynchronous Events scheduled as th
Page 112 and 113: disk drive enclosure disk failure p
Page 114 and 115: FCA Fibre Channel Adapter. An adapt
Page 116 and 117: host-side ports See host ports. one
Page 118 and 119: mirrored caching A process in which
Page 120 and 121: ead ahead caching than from the dis
Page 122 and 123: UID Unit identification. uninitiali
Page 124 and 125:
124 Glossary
Page 126 and 127:
Fibre Channel Disk Enclosure define
Page 128:
128
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HP StorageWorks 4400 Enterprise Virtual Array user ... - BUSINESS IT

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