This is apparently not a good idea - since, as far as I can tell at
least, I have to restart the iscsi subsystem every time I present a
new disk from the PS6000. A "service iscsi restart" effectively
destroys all KVM guests using existing, already logged in iscsi disks
will hang indefinitely wondering where their disks disappeared to.
Ouch, you definitely don't want to do this.
You should be able to just do a discovery and find new targets. The
commands take some getting used to, though. Check out section 5.2 in this:
http://www.open-iscsi.org/docs/README
We have had pretty good luck with Equallogic & RHEL5/CentOS 5.
It would be a bit cleaner if there were a way to tell discovery of a
particular target that you want to add, instead of doing a full scan, but it
should be safe.
Mark
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