[Gluster-users] Using TSM to back-up glusterfs

[Anand Babu Periasamy]

On Mon, Jun 27, 2011 at 12:08 PM, Pat Haley <phaley at mit.edu> wrote:

>
> Hi
>
> We have been trying back-up a glusterfs (v3.1.4) area using
> the Tivoli TSM software to an off-site area.  The back-up
> keeps failing with the following typical error messages
>
> 06/14/2011 22:22:58 ANS1587W  I/O error reading file attributes for:
> /gdata/projects/philex/OAG/**2011/May16/mdor3km10/coast_**den2.in<http://coast_den2.in>.
> errno = 22, Invalid argument
>
> 06/14/2011 22:22:59 ANS4007E Error processing '/gdata/projects/philex/OAG/
> **2011/May16/mdor3km07/coast_**den2.in <http://coast_den2.in>': access to
> the object is denied
>
> We originally thought the problem was bad meta-pointer files,
> but we still experience the failures after deleting all meta-pointer
> files.
>
> Has anyone else experienced/solved this problem?
>
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=**-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=**-=-=-
> Pat Haley                          Email:  phaley at mit.edu
> Center for Ocean Engineering       Phone:  (617) 253-6824
> Dept. of Mechanical Engineering    Fax:    (617) 253-8125
> MIT, Room 5-222B                   http://web.mit.edu/phaley/www/
> 77 Massachusetts Avenue
> Cambridge, MA  02139-4301
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>


Hi Pat, Let me get some one from the engineering team to coordinate with
you. For now, you can check this:

'/gdata/projects/philex/OAG/**2011/May16/mdor3km07/coast_**den2.in<http://coast_den2.in/>
This file must exist on one of the backend disks. See if you can directly
read from the backend disks. If it is not a bad backend disk, then it is a
GlusterFS issue.

If you provide us remote access via reverse-ssh / screen or webex, we can
quickly narrow down. We don't have a TSM environment in our labs. You can
help us validate compatibility.

Also I am not sure if TSM allows scripting. If we can make TSM tools use
GlusterFS 3.2 marker APIs, then you can achieve continuous backup
functionality (backup data as and when it changes, without crawling the name
space). It will significantly improve your backup performance (no more
backup windows). Marker APIs can even be invoked via shell scripting using
attr tools.

-- 
Anand Babu Periasamy
Blog [http://www.unlocksmith.org]

Imagination is more important than knowledge --Albert Einstein
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