Hi,
I am encountering the dreaded "Buffer discarded" error upon restoring
a big job from a file based storage. Apart from a few old postings on
this list concerning tapes there seems to be no indicator as why this
happens with file based storage. Is there any explanation excluding
faulty hardware?
18-Mär 13:47 db-backup-smedia-dir JobId 43810: Start Restore Job
RestoreFiles.2009-03-18_13.47.06
18-Mär 13:47 db-backup-smedia-dir JobId 43810: Using Device
"FileStorage"
18-Mär 13:47 db-backup-smedia-sd JobId 43810: Ready to read from
volume "archiv-data6445" on device "FileStorage" (/mnt/backup/store).
18-Mär 13:47 db-backup-smedia-sd JobId 43810: Forward spacing Volume
"archiv-data6445" to file:block 0:225.
18-Mär 13:56 db-backup-smedia-sd JobId 43810: End of Volume at file 2
on device "FileStorage" (/mnt/backup/store), Volume "archiv-data6445"
18-Mär 13:56 db-backup-smedia-sd JobId 43810: Ready to read from
volume "data-inc1709" on device "FileStorage" (/mnt/backup/store).
18-Mär 13:56 db-backup-smedia-sd JobId 43810: Forward spacing Volume
"data-inc1709" to file:block 0:219.
18-Mär 13:56 db-backup-smedia-sd JobId 43810: End of Volume at file 0
on device "FileStorage" (/mnt/backup/store), Volume "data-inc1709"
18-Mär 13:56 db-backup-smedia-sd JobId 43810: Ready to read from
volume "data-inc1756" on device "FileStorage" (/mnt/backup/store).
18-Mär 13:56 db-backup-smedia-sd JobId 43810: Forward spacing Volume
"data-inc1756" to file:block 0:1290450.
18-Mär 13:56 db-backup-smedia-sd JobId 43810: Error: block.c:275
Volume data error at 0:1290450! Wanted ID: "BB02", got "P". Buffer
discarded.
18-Mär 13:56 db-backup-smedia-dir JobId 43810: Error: Bacula db-backup-
smedia-dir 2.2.8 (26Jan08): 18-Mär-2009 13:56:57
Build OS: i686-pc-linux-gnu gentoo 1.6.14
JobId: 43810
Job: RestoreFiles.2009-03-18_13.47.06
Restore Client: d01-box-fd
Start time: 18-Mär-2009 13:47:50
End time: 18-Mär-2009 13:56:57
Files Expected: 924,229
Files Restored: 398,385
Bytes Restored: 12,143,871,860
Rate: 22200.9 KB/s
FD Errors: 0
FD termination status: OK
SD termination status: Error
Termination: *** Restore Error ***
This is a 32bit system running inside a Linux vServer on a Xen domain.
The RAID5 storage array is directly mounted inside the Xen domain and
handed to the vServer. Bacula version is 2.2.8 on Linux Gentoo, kernel
2.6.21
storage daemon:
Device {
Name = FileStorage
Media Type = File
Archive Device = /mnt/backup/store
Spool Directory = /mnt/backup/spool
Maximum Spool Size = 1099511627776
LabelMedia = yes;
Random Access = Yes;
AutomaticMount = yes;
RemovableMedia = no;
AlwaysOpen = no;
}
storage def in director:
Storage {
Name = File
Address = localhost
SDPort = 9103
Password = "secret"
Device = FileStorage
Media Type = File
Maximum Concurrent Jobs = 20
}
I am using spooling to enable concurrent backup jobs (but having the
directive "Maximum Volume Jobs = 1" in the pools config). Could this
somehow produce corrupt volumes?
Thank you.
Stefan Sorin Nicolin
http://nicolinux.org
---
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iPhone Dev-ious, Computer Science
alumnus, usability guesspert and
overall big time visionary
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