Re: [Bacula-users] spool disk filesystem, checksums

2014-12-06 Thread Kern Sibbald
On 12/05/2014 02:11 PM, Daniel Pocock wrote: On 05/12/14 13:57, Josh Fisher wrote: On 12/5/2014 1:03 AM, Daniel Pocock wrote: On 05/12/14 00:43, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/04): On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-06 Thread Radosław Korzeniewski
Hello, 2014-12-05 20:01 GMT+01:00 Daniel Pocock dan...@pocock.pro: On 05/12/14 19:20, Dimitri Maziuk wrote: On 12/05/2014 07:48 AM, Daniel Pocock wrote: The purpose of such a checksum wouldn't be to prove that the tapes are correct, it would simply be to catch any failure of the spool

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-06 Thread Daniel Pocock
On 06/12/14 00:02, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/05): Now it is in the bug tracker: http://bugs.bacula.org/view.php?id=2111 ... Data corruption occurs on disks sometimes, e.g. the write to disk didn't record data correctly on the platter and any attempt to read it

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Josh Fisher
On 12/5/2014 1:03 AM, Daniel Pocock wrote: On 05/12/14 00:43, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/04): On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does Bacula checksum content on the spool disk before sending it to tape? To be more

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Daniel Pocock
On 05/12/14 13:57, Josh Fisher wrote: On 12/5/2014 1:03 AM, Daniel Pocock wrote: On 05/12/14 00:43, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/04): On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does Bacula checksum content on the spool disk before

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Josh Fisher
On 12/5/2014 8:11 AM, Daniel Pocock wrote: On 05/12/14 13:57, Josh Fisher wrote: On 12/5/2014 1:03 AM, Daniel Pocock wrote: On 05/12/14 00:43, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/04): On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Daniel Pocock
On 05/12/14 14:25, Josh Fisher wrote: On 12/5/2014 8:11 AM, Daniel Pocock wrote: On 05/12/14 13:57, Josh Fisher wrote: On 12/5/2014 1:03 AM, Daniel Pocock wrote: On 05/12/14 00:43, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/04): On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Daniel Pocock
On 05/12/14 14:48, Daniel Pocock wrote: On 05/12/14 14:25, Josh Fisher wrote: On 12/5/2014 8:11 AM, Daniel Pocock wrote: On 05/12/14 13:57, Josh Fisher wrote: On 12/5/2014 1:03 AM, Daniel Pocock wrote: On 05/12/14 00:43, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/04): On 04/12/14

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Dimitri Maziuk
On 12/05/2014 07:48 AM, Daniel Pocock wrote: The purpose of such a checksum wouldn't be to prove that the tapes are correct, it would simply be to catch any failure of the spool disk at the earliest opportunity Monitoring your hardware is not bacula's job. Appropriate tools for this

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Daniel Pocock
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 05/12/14 19:20, Dimitri Maziuk wrote: On 12/05/2014 07:48 AM, Daniel Pocock wrote: The purpose of such a checksum wouldn't be to prove that the tapes are correct, it would simply be to catch any failure of the spool disk at the earliest

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Dimitri Maziuk
On 12/05/2014 01:01 PM, Daniel Pocock wrote: smartctl and fsck will not always know if bits are written incorrectly within the data of a file. Buy better disks, then. -- Dimitri Maziuk Programmer/sysadmin BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu signature.asc Description:

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-05 Thread Cejka Rudolf
Daniel Pocock wrote (2014/12/05): Now it is in the bug tracker: http://bugs.bacula.org/view.php?id=2111 ... Data corruption occurs on disks sometimes, e.g. the write to disk didn't record data correctly on the platter and any attempt to read it returns the corrupted data. This may just be 1 bit

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-04 Thread Kern Sibbald
On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does Bacula checksum content on the spool disk before sending it to tape? To be more explicit, if there is a single bit error on the spool disk, will it be noticed before going onto tape or would it only be noticed in future when a file is taken

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-04 Thread Daniel Pocock
On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does Bacula checksum content on the spool disk before sending it to tape? To be more explicit, if there is a single bit error on the spool disk, will it be noticed before going onto tape or would it only be

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-04 Thread Cejka Rudolf
Daniel Pocock wrote (2014/12/04): On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does Bacula checksum content on the spool disk before sending it to tape? To be more explicit, if there is a single bit error on the spool disk, will it be noticed

Re: [Bacula-users] spool disk filesystem, checksums

2014-12-04 Thread Daniel Pocock
On 05/12/14 00:43, Cejka Rudolf wrote: Daniel Pocock wrote (2014/12/04): On 04/12/14 18:35, Kern Sibbald wrote: On 12/03/2014 08:49 PM, Daniel Pocock wrote: Does Bacula checksum content on the spool disk before sending it to tape? To be more explicit, if there is a single bit error on the

[Bacula-users] spool disk filesystem, checksums

2014-12-03 Thread Daniel Pocock
Does Bacula checksum content on the spool disk before sending it to tape? To be more explicit, if there is a single bit error on the spool disk, will it be noticed before going onto tape or would it only be noticed in future when a file is taken off the tape?