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Title
"Had media error" and "Failed to get restore stream" errors when migrating a phase 1 backup off... -
Description
Performing a Phase 1 backup to a NEXSAN RAID 0 SVTL device that is attached to the NetVault Server via FC and then a Phase 2 Duplication-Migrate option to a Spectra Logic T120 tape library that is attached to a separate FC card also on the NetVault Server.
Confirmed the following error messages:1] Error 2012/06/06 23:45:40 1168 Media HRFBKPSERVER HRFBKPSERVER PhysicalDrive6:3: had media error
With sub text:
MEDREAD :04840 139 0 224540 Request is for more than one block, 131072 bytes in first block, 131072 byte in last block
MEDREAD :04840 143 0 224540 The block requested is the next block
MEDREAD :04840 323 0 224540 First 0 0 131072, Last 139189 131071 131072 Cur 0 End 139190
MEDREAD :04840 306 0 224540 DevMgrReadData()
MEDREAD :04840 340 0 224540 Marking block as first of xfer
DEVRAW :04840 581 0 224540 DevRawCheckMedia invoked
RAWLIBFO:04840 162 0 224540 RawLibMediaRefresh() called on SVTL100011
RAWLIBFO:04840 162 0 224540 RawLibMediaRefresh() called on SVTL100011
RAWLIBFO:04840 67 0 224540 RawLibReadFromSegment: end of data
DEVRAW :04840 564 0 224540 DevRawReadData: failed to read
MEDREAD :04840 305 0 224540 Device read data returned 258(0x102)2] Error 2012/06/06 23:45:40 1168 Media HRFBKPSERVER (HRFBKPSERVER: PhysicalDrive6) Drive 'DRIVE 3:HRFBKPSERVER' has completed its transfer
With sub text:
DEVMGR :04840 273 0 224540 bHardwareError = TRUE3] Error 2012/06/06 23:45:45 1168 Data Plugin HRFBKPSERVER Failed to get restore stream
The NEXSAN device was about 5-6 years and were constantly writing to it.
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Resolution
This was pointing to a Hardware issue for the NEXSAN SVTL Raw Device and would generally advise to contact the Hardware Vendor regarding this issue, but resolved the issue by performing the following steps:
1] Remove the SVTL from NetVault Device Management.
2] Upgraded NEXSAN Firmware.
3] Created a Filesystem on the SVTL to perform disk checks and all was OK.
4] Removed the Filesystem on the SVTL and changed to a RAW device.
5] Re-added the SVTL in NetVault Device Management.Performed test backups and all completed successfully.