On 2012-11-30T15:27:56, Sebastian Riemer <sebastian.riemer@xxxxxxxxxxxxxxxx> wrote:
> Yes, it is possible but it only makes sense if you want to mirror to
> another server as most people know that the alternative DRBD is too slow
> for serious storage requirements.
>
> Create the RAID-0 first, then take your RAID-0 device and e.g. an iSCSI
> device from another storage server with the same setup and create a
> RAID-1 over them. Then, you've got your stacked MD layers.
>
> With the flag write-mostly you can even tell the read balancing that the
> remote device is slower than the local one.
That is somewhat orthogonal to the original discussion, but in which
benchmarks is this approach faster than DRBD - aren't the bottlenecks
still the spindle and the network IO?
Regards,
Lars
--
Architect Storage/HA
SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
