[OpenAFS] shadow volumes and 'vos syncvldb'

[Steve Simmons]

Shadow volumes by their very definition never enter the vldb.

Steve

On Nov 15, 2012, at 12:26 PM, Arne Wiebalck wrote:

> Dear all,
>=20
> If detecting shadow volumes, does 'vos syncvldb' really update VLDB =
entries=20
> to point to the shadow location instead of the location of the R/W =
source volume=20
> as stated in the man page? (Some simple tests and a quick check in the =
code=20
> seem to indicate that at least in 1.4 this is not the case).
>=20
> Would I need to run 'vos delentry' on all volumes before running 'vos =
syncvldb'=20
> on the shadow server or is there something else I should do?
>=20
> I assume that in a disaster recovery situation where the source server =
is not=20
> reachable I probably need to delete the entries anyway as=20
> - 'vos syncvldb' will need a macroscopic timeout for each volume on =
the=20
>  unreachable server, and
> - it will not even update VLDB in the end if communication fails. =
Correct?
>=20
> TIA,
> Arne
>=20
> --
> Arne Wiebalck
> CERN IT/DSS
>=20
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>=20
>=20
>=20
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