[ILUG] data pushing on Linux, any suggestion?

[Emen Zhao]

thank you all for your suggestions, i will try these tools out and hopefully
have something report back to the group. :-)

Thanks,
Emen

On Tue, Nov 24, 2009 at 9:54 PM, stephen mulcahy
<smulcahy at atlanticlinux.ie>wrote:

> Kevin Brennan wrote:
>
>> Note that DRBD can only be accessed on one node at a time (the so called
>>> active node) so it may not be suitable if you want all of your fileservers
>>> serving requests simultaneously.
>>>
>>
>> Not quite true, it's regulary used in active/passive mode but DRBD can
>> also support active/active mode using a clustered file system like OCFS2 or
>> GFS.
>>
>> /KB
>>
>>
> Hehe,
>
> As soon as I sent that, I knew I'd get corrected. From
> http://www.drbd.org/home/mirroring/
>
> "In spite of this limitation, there are still a few ways to access the data
> on the second node:
>
>    * Use DRBD on logical volumes and use LVM's capabilities to take
> snapshots on the standby node, and access the data via the snapshot.
>    * DRBD's primary-primary mode with a shared disk file system (GFS,
> OCFS2). These systems are very sensitive to failures of the replication
> network. Currently we cannot generally recommend this for production use."
>
> I'd be interested to hear of people successfully using DRBD in such a way
> in production without problems.
>
>
> -stephen
>
> --
> Stephen Mulcahy     Atlantic Linux         http://www.atlanticlinux.ie
> Registered in Ireland, no. 376591 (144 Ros Caoin, Roscam, Galway)
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