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Posted: 2020-07-03 06:59 AM . Last Modified: 2024-04-08 04:20 AM
I ran into an issue with DCE 7.4.1 backing up to windows 7. The share would mount successfully. Access from DCE is successful as the directory structure and files are created/transferred into the shared folder. DCE would mount the share and start the backup but intermittently fail, never completing. See below resolution.
The Console showed the below:
CIFS VFS:Unexpected lookup errror -12
CIFS VFS: cifs_mount failed w/return code = -12
The DCE server logs showed:
10/13/16 16:12:17.579 ERRR - Backup Log: rsync: mkstemp "/data/mount/backup/backup_DCEStokeCC_20161013151356_7.4.1/data/local/sensor2/B83972A/B83972A_nbAlinkEnc_0/2015/.sensor.194.rL5HFg" failed: Cannot allocate memory (12)(com.netbotz.server.services.backup.impl.BackupJob)
The issue is because Windows 7 is not initially optimized as a file server and requires manual registry changes.
Applicable Registry key description:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters\size
Your choices for this registry key are 1, 2 and 3.
1 = Minimize Memory Used
2 = Balance
3 = Maximize Throughput for File Sharing and Maximize
Throughput for Network Applications
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement\LargeSystemCache
Your choices for this registry key are 0 and 1.
1 = Maximize Throughput for File Sharing
0 = Maximize Throughput for Network Applications
To apply the changes follow the below process:
Press the CTRL + ESC – type “regedit.exe” – press enter
Navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters\size
Double click size and change hexadecimal value to 3
Navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement\LargeSystemCache
Double click size and change hexadecimal value to 1
Reboot the Windows 7 system.
(CID:108828390)
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Posted: 2020-07-03 06:59 AM . Last Modified: 2023-10-22 01:50 AM
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