[OpenAFS] what is the backup order of the fileserver exploration
for a given volset?
Fri, 8 Apr 2016 16:55:13 -0400
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?
In my experience, if I need to know items will be handled in a certain
order, I treat the items separately. Can you split your volumeset into
multiple volumesets based on location (local vs WAN)? That way you can
control order of volumesets knowing each is all-local or all-remote
> Giovanni Bracco
> Via E. Fermi 45
> I-00044 Frascati (Roma) Italy
> phone +39-06-9400-5597 mobile +39-3351992144
> FAX +39-06-9400-5735
> E-mail firstname.lastname@example.org
> WWW http://www.afs.enea.it/bracco
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