[OpenAFS] Home directory unavalable at certain times.

[Jeffrey Altman]

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On 4/19/2012 8:05 AM, Fredrik Engstr=C3=B6m wrote:
> Hi,
>=20
> =20
>=20
> When users log in at 11 they get access denied when they try to open th=
e
> home directory. If you log in twenty minutes later you will not have
> this issue and if you log in before eleven you will also not notice
> anything.
>=20
> =20
>=20
> The logs mention that a certain volume is unavailable prior to this iss=
ue:
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> =20
>=20
> =E2=80=9CServer 77.238.35.9 reported volume 536870955 in cell su.se as =
offline=E2=80=9D
>=20

    RWrite: 536870954     ROnly: 536870955     Backup: 536870956
    number of sites -> 5
       server afs-prod-fs608.it.su.se partition /vicepa RW Site
       server afs-prod-rofs100.it.su.se partition /vicepa RO Site
       server afs-prod-rofs101.it.su.se partition /vicepa RO Site
       server afs-prod-rofs102.it.su.se partition /vicepa RO Site
       server afs-prod-rofs103.it.su.se partition /vicepa RO Site

There is no RO replica on afs-prod-fs608.it.su.se.  Therefore, while the
replication is being performed there are no copies of the RO volume
which are up to date and online.

1.6.2 will provide an option to "vos release" which will allow you to
avoid this condition.  In the meantime, you may want to consider adding
a RO replica on the same partition as the RW.   This will have a
downside in that while the replication is taking place that one replica
will be the only one up to date and accessible.  All clients which are
attempting to access home.readonly during that time will failover to
afs-prod-fs608.it.su.se.  The upside is you will not have an outage.

Jeffrey Altman




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