[linux-lvm] LVM high availability

[Huiba Li]

Is there a release schedule？ I' looking forward to this feathure.

Zdenek Kabelac <zkabelac at redhat.com>写到：
>Dne 23.6.2013 16:32, lihuiba napsal(a):
>>
>>>>> 3) how about thin pool and volumes?
>>>>
>>>
>>>Thin-pool may be active on single-node only. In cluster only
>exclusive
>>>activation is allowed and can not be activated elsewhere even
>"read-only".
>>>
>>>It should work fine without cluster locking while read-only
>everywhere,
>>>except you can not enforce read-only on the pool. (There is a bug for
>that.)
>>>
>>>Attempting to write to pool active elsewhere, may render the pool's
>view
>>>corrupted on other nodes. So when writing to pool, you should at
>least
>>>deactivate the pool and all thin volumes on all other nodes, and
>>>reactivate afterwards.
>>
>> I don't think out why thin volumes can not be active on multiple
>nodes even read-only.
>>
>> It is intuitive that activating thin volumes in read-only mode will
>neither change it's own
>>
>> meta-data nor the pool's.
>>
>> If I "force" the thin volumes to be active by, for example, changing
>the source code,
>>
>> what errors will occur?
>
>
>lvm2 code currently doesn't support activation of all thin pool related
>LVs in 
>read-only mode - there is some work being done in this area - but still
>not 
>finished.
>
>Zdenek
>
>
>
>
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