I have a problem with backing up one server (Windows Server 2008 R2 Datacenter, MySQL Server 5.0 and UrBackup Client 2.3.4.0). The server has two disks. On volume C: running system, database, and UrBackup Client. Volume D: contains only static data.
Full image backup of volume C: does not work, but backup of volume D: works correctly. I think that the problem is at the time of creation a volume shadow copy. On volume C: it takes a very long time (about 80 seconds), but on volume D: it is finished immediately.
I attach debug logs from UrBackup Client client.log (475.0 KB)
and from server (UrBackup Server 2.3.7) server.log (4.4 KB)
Could you give me an advice please? Thanks in advance.
It seems more likely that C: is e.g. nearly full and has no space for shadow copy data. This causes the shadow copy to be deleted straight after creation (causing the read errors in the log).
If you take a look at the event log on the client, you can get more information on why the shadow copy was deleted.
Unfortunately, I stopped the UrBackup Client service at 12:54:36 so I don’t have any more log records.
But I did another test where I had the UrBackup Client running for about an hour.
I attach the new debug log: debug.log (53.6 KB)
P. S .: Sorry for garbling the error message in my previous post, it should be right:
ERROR: Reading from device at position XXXXXXXX failed. System error code 2
Thank you very much for your answer.
As I wrote in one of my previous posts, I tried to set an unlimited size volume shadow copy, but the problem was not fixed:
C:\>vssadmin list shadowstorage
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2005 Microsoft Corp.
Shadow Copy Storage association
For volume: (\\?\Volume{1adc5435-14ff-11e5-8e01-806e6f6e6963}\)\\?\Volume{1adc5435-14ff-11e5-8e01-806e6f6e6963}\
Shadow Copy Storage volume: (\\?\Volume{1adc5435-14ff-11e5-8e01-806e6f6e6963}\)\\?\Volume{1adc5435-14ff-11e5-8e01-806e6f6e6963}\
Used Shadow Copy Storage space: 0 B (0%)
Allocated Shadow Copy Storage space: 0 B (0%)
Maximum Shadow Copy Storage space: 32 MB (32%)
Shadow Copy Storage association
For volume: (D:)\\?\Volume{7bd5a440-304e-11e9-885b-005056a30028}\
Shadow Copy Storage volume: (D:)\\?\Volume{7bd5a440-304e-11e9-885b-005056a30028}\
Used Shadow Copy Storage space: 1.281 MB (0%)
Allocated Shadow Copy Storage space: 320 MB (0%)
Maximum Shadow Copy Storage space: 320 MB (0%)
Shadow Copy Storage association
For volume: (C:)\\?\Volume{1adc5436-14ff-11e5-8e01-806e6f6e6963}\
Shadow Copy Storage volume: (C:)\\?\Volume{1adc5436-14ff-11e5-8e01-806e6f6e6963}\
Used Shadow Copy Storage space: 2.627 GB (2%)
Allocated Shadow Copy Storage space: 4.461 GB (3%)
Maximum Shadow Copy Storage space: UNBOUNDED (100%)
Earlier on this server full volume backups worked. In my opinion, backup stopped working after the time of creation volume shadow copy on C: exceeded about 60 sec.