48F@01000003 Error on Storage Spaces

Question

Hi!
I have the following configuration: 2-node cluster Spaces and Sofs (CIB) - SMB storage running on SuperStorage 2026T-DE2R24L
And a Hyper-v 2-node cluster accessing the vm´s over 10G ethernet SMB
OS Windows 2012R2
We have got a file corruption on some vhdx files
1. In System log. Source: VDS Provider, EventID: 1, EventData: 48F@01000003
Unexpected failure. Error code: 48F@01000003
Running chkdsk on the volume 
[----]: PS C:\Users\---\Documents> chkdsk.exe C:\ClusterStorage\Volume1 /scan
The type of the file system is NTFS.
Volume label is Spaces01-Vdisk1.
Stage 1: Examining basic file system structure ...
Progress: 0 of 30464 done; Stage:  0%; Total: 70%; ETA:   0:01:29
Progress: 248 of 30464 done; Stage:  0%; Total: 70%; ETA:   0:01:29 .
Progress: 2111 of 30464 done; Stage:  6%; Total: 71%; ETA:   0:01:26 ..
Progress: 3542 of 30464 done; Stage: 11%; Total: 73%; ETA:   0:00:01 ...
Progress: 6899 of 30464 done; Stage: 22%; Total: 76%; ETA:   0:00:01
Progress: 8076 of 30464 done; Stage: 26%; Total: 82%; ETA:   0:00:01 .
    Found corrupt basic file structure for "\Shares\VMS\Computer-01\Computer-01_disk_1.vhdx <0x48b,0x3855>"
        ... queued for offline repair.
    Found corrupt basic file structure for "\Shares\VMS\Computer-01\Computer-01_2.vhdx <0x8,0x3858>"
        ... queued for offline repair.
Progress: 26628 of 30464 done; Stage: 87%; Total: 79%; ETA:   0:00:01 ..
Progress: 30464 of 30464 done; Stage: 100%; Total: 85%; ETA:   0:00:01 ...
  30464 file records processed.
File verification completed.
Progress: 1 of 15783 done; Stage:  0%; Total: 11%; ETA:   0:00:12
Progress: 15783 of 15783 done; Stage: 100%; Total: 11%; ETA:   0:02:52 .
  15783 large file records processed.
    Found unused file metadata marked as used
        ... queued for offline repair.
Progress: 0 of 0 done; Stage: 99%; Total: 11%; ETA:   0:02:52 ..
  0 bad file records processed.
Stage 2: Examining file name linkage ...
Progress: 1846 of 31254 done; Stage:  5%; Total: 11%; ETA:   0:02:52 ...
Progress: 1847 of 31254 done; Stage:  5%; Total: 11%; ETA:   0:02:52
Progress: 8077 of 31254 done; Stage: 25%; Total: 11%; ETA:   0:02:50 .
Progress: 30191 of 31254 done; Stage: 96%; Total: 12%; ETA:   0:02:54 ..
Progress: 30192 of 31254 done; Stage: 96%; Total: 12%; ETA:   0:02:54 ...
    Found an unneeded link ($REPARSE_POINT: \Shares\VMS\Computer-01\Computer-01_disk_2.vhdx <0x8,0x3858>, ReparseTag: 0x800
00013) in index "$R" of directory "\$Extend\$Reparse <0x1,0x1a>"
        ... queued for offline repair.
Progress: 31254 of 31254 done; Stage: 100%; Total: 12%; ETA:   0:02:52
After running chkdsk /spotfix the files are still corrupt and know way of retrieving the files.
What can I do to further troubleshoot this problem?
Thank you.

Answer 1

Hi 346Rfe,
This error usually occur when your are trying to use Windows Server backup to backup the CSV, with server backup Backups of CSVs was not supported.
If you cancel the server backup not work please refer the following thread install the mentioned update.
Hyper-V Cluster Backup problem: Unexpected failure. Error code: 48F@01000003
http://social.technet.microsoft.com/Forums/en-US/ef438966-7514-406e-ae1e-680cdbd3b4b4/hyperv-cluster-backup-problem-unexpected-failure-error-code-48f01000003?forum=dpmhypervbackup
I’m glad to be of help to you!
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