Please translate "dislink" to "dislike" On 02/26/2016 03:52 PM, Kern Sibbald wrote: > This is not a bextract error per-se, rather when Bacula is reading the > volume, the checksum it found in a block is not the same as the checksum > it computed with the data that was read. Normally this means that your > disk drive is going bad. In your case, you aare using a mounted volume, > and in addition to the possibility of having a broken disk, there are > possibly networking errors, and possibly errors with NFS. I dislink CIFS > and NFS for Bacula volumes, because if you write something to those > Volumes, then read it back, you do not always get the same data -- some > of the data may be buffered and not actually written to disk. > > Probably the best way to dig into this is to setup a job that does a > VerifyData on the job that was backed up. This will tell you if Bacula > is able to read back a job that it wrote. Note, this feature > (VerifyData) only exists in Bacula version 7.4.0. > > Another thing to do would be to run bls to list the blocks on the volume > -- I am not sure it computes checksums though. > > Best regards, > Kern > > On 02/24/2016 06:37 PM, Andrea Venturoli wrote: >> Hello. >> >> I'm getting an error and having an hard time figuring the reason, so I'm >> looking for some insight. >> >> I have a job that backups a Windows client. It >> _ dumps some databases in "Client Run Before Job"; >> _ backs the dump files normally to a NAS which is running bacula-sd; >> _ runs a "Run After Job" script that: >> mounts that NAS via NFS; >> runs bextract on the storage file used by the job; >> uploads those file somewhere else. >> >> It has been working flawlessly for a long time, but in the last two days >> I'm getting messages like: >> >>> 23-Feb 22:52 dir JobId 5202: AfterJob: bextract: butil.c:289-0 Using >>> device: "BackupXXXXXX" for reading. >>> 23-Feb 22:52 dir JobId 5202: AfterJob: 23-Feb 22:52 bextract JobId 0: Ready >>> to read from volume "GestI1242" on file device "BackupXXXXXX" >>> (/mnt/XXXXXXbackup). >>> 23-Feb 22:52 dir JobId 5202: AfterJob: bextract JobId 0: -rwxrwxrwx 1 >>> root wheel 300042752 2016-02-23 22:51:07 >>> /usr/local/local/XXXXXXDBs/2016022322521456264333/C:/Users/Public/Bacula/1.bak >>> 23-Feb 22:52 dir JobId 5202: AfterJob: bextract JobId 0: -rwxrwxrwx 1 >>> root wheel 187002368 2016-02-23 22:51:12 >>> /usr/local/local/XXXXXXDBs/2016022322521456264333/C:/Users/Public/Bacula/2.bak >>> 23-Feb 22:52 dir JobId 5202: AfterJob: 23-Feb 22:52 bextract JobId 0: >>> Error: block_util.c:352 Volume data error at 0:53803237! >>> 23-Feb 22:52 dir JobId 5202: AfterJob: Block checksum mismatch in block=835 >>> len=64512: calc=6c456dfa blk=f9b4bb13 >>> 23-Feb 22:52 dir JobId 5202: AfterJob: 23-Feb 22:52 bextract JobId 0: >>> Error: file_attrs.c:568 File size of restored file >>> /usr/local/local/XXXXXXDBs/2016022322521456264333/C:/Users/Public/Bacula/2.bak >>> not correct. Original 187002368, restored 90963752. >>> 23-Feb 22:52 dir JobId 5202: AfterJob: 2 files restored. >> >> There should be 4 restored files, but the second gives an error and the >> procedure stops. >> >> I know NFS has problems with very large files (>2GB), but the storage >> file in this case is less than 100MB. >> What can cause that "Volume data error"? >> >> bye & Thanks >> av. >> >> P.S. The version is 7.0.5 on FreeBSD 9.3 and the NAS is a Zyxel NSA-310 >> (I've been using several such objects with bacula without problems for a >> long time). >> >> ------------------------------------------------------------------------------ >> Site24x7 APM Insight: Get Deep Visibility into Application Performance >> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >> Monitor end-to-end web transactions and take corrective actions now >> Troubleshoot faster and improve end-user experience. Signup Now! >> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >> _______________________________________________ >> Bacula-users mailing list >> Bacula-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/bacula-users >> > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users >
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