But vos listvldb provides a list of volumes alphabetically sorted by vol name! Even if it makes use of the same routine the output provided forgets that, I think

Giovanni

On 08/04/16 22:32, Benjamin Kaduk wrote:
On Fri, 8 Apr 2016, Giovanni Bracco wrote:

In our AFS cell we have 9 fileservers (openafs 1.6.5 to 1.6.15) distributed
over WAN and we use the native openafs backup system, which works well (max
size of a volume is 200 GB)

We have defined a volset for all the .backup volumes of all fileservers and we
have one AFS backup server that performs the backup for all the fileservers,
both the local and remote ones.

As the backup duration is very different for local fileserver (~60 MB/s) and
remote fileservers (~3 MB/s) it would be very nice to know in advance what is
the order chosen by the backup  process for a given volset.

The experience shows that it is NOT the order in which the fileservers appear
in the volset definition.

Any suggestion?

Try comparing to the 'vos listvldb' output.  The buserver determines the
volume list in EvalVolumeSet2(), which calls ubik_VL_ListAttributesN2() to
assemble the list of volumes in the volume set.  lisvldb should be using
the same vlserver routine as the buserver.

-Ben
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--
Giovanni Bracco
DTE-ICT-HPC
ENEA
Via E. Fermi 45
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phone +39-06-9400-5597  mobile +39-3351992144
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E-mail  giovanni.bra...@enea.it
WWW http://www.afs.enea.it/bracco
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