[ClusterLabs] VG activation on Active/Passive

Digimer lists at alteeve.ca
Sat Aug 29 15:22:10 EDT 2015

On 29/08/15 02:51 PM, Jorge Fábregas wrote:
> On 08/29/2015 02:37 PM, Digimer wrote:
>> No need for clustered LVM, only the active node should see the PV. When
>> the passive takes over, after connecting to the PV, it should do a
>> pvscan -> vgscan -> lvscan before mounting the FS on the LV.
>> Keep you cluster simple; remove everything not needed.
> Hi Digimer,
> It would be great if my cluster could communicate with the storage-array
> to make it "present" or "unpresent" LUNs based on the cluster conditions
> but I'm afraid that's not possible :)  So yes, these are LUNs that are
> visible on both nodes.
> I'm the one who asked you something regarding cLVM on IRC the other day
> (one of the many times you have helped me there) and I decided to go the
> cLVM/DLM route (because the LUNs are seen on both nodes) but now I have
> my issues with this VG activation.
> Thanks.
> Regards,
> Jorge

Ah, OK then.

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