[OpenAFS] SAN snaps for AFS partitions...

Mon, 23 May 2005 10:07:44 -0500

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We are looking at various recovery solutions. One idea we would like  
to explore is using SAN snap technology. The idea would be to use SAN  
snap technology to recover from IO subsystem failure. This could be a  
corruption from the RAID adapter or  multiple failures in a RAID  
device etc.

If we took snaps of a device which one or more partitions were on,  
could we safely restore the device (and therefore the partitions)  
from the snaps and still have OpenAFS work correctly? Would we have  
to restore the meta databases as well?

Any thoughts on this would be appreciated.

Thanks.

Kurt A. Seiffert                        | seiffert@indiana.edu
UITS Distributed Storage Services Group | C: 812-345-1892
Indiana University, Bloomington         | W: 1 812-855-5089

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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">We are looking at various =
recovery solutions. One idea we would like to explore is using SAN snap =
technology. The idea would be to use SAN snap technology to recover from =
IO subsystem failure. This could be a corruption from the RAID adapter =
or=A0 multiple failures in a RAID device etc.<DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>If we took snaps of a =
device which one or more partitions were on, could we safely restore the =
device (and therefore the partitions) from the snaps and still have =
OpenAFS work correctly? Would we have to restore the meta databases as =
well?</DIV><DIV><BR class=3D"khtml-block-placeholder"></DIV><DIV>Any =
thoughts on this would be appreciated.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Thanks.<BR><DIV> <P =
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Helvetica">Kurt A. Seiffert<SPAN class=3D"Apple-converted-space">=A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 </SPAN>| <A =
href=3D"mailto:seiffert@indiana.edu">seiffert@indiana.edu</A></FONT></P> =
<P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Helvetica" =
size=3D"3" style=3D"font: 12.0px Helvetica">UITS Distributed Storage =
Services Group | C: 812-345-1892</FONT></P> <P style=3D"margin: 0.0px =
0.0px 0.0px 0.0px"><FONT face=3D"Helvetica" size=3D"3" style=3D"font: =
12.0px Helvetica">Indiana University, Bloomington <SPAN =
class=3D"Apple-converted-space">=A0 =A0 =A0 =A0 </SPAN>| W: 1 =
812-855-5089<SPAN class=3D"Apple-converted-space">=A0 =A0 =
=A0</SPAN></FONT></P>  </DIV><BR></DIV></BODY></HTML>=

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