On 1/6/2011 10:25 AM, Stefan Seifert wrote:
Just to add another point of view: we just upgraded our cluster
hardware and
are now using these OCZ Vertex 2s. It is an HA cluster whiches whole point is
to provide failover in case some hardware breaks. So what if those SSDs have a
little higher failure rate. We're using RAID and in addition have the failover
cluster. I've had enough HDDs dieing on me to not be scared anymore...
And performance is just fantastic!
Regards,
Stefan
Thanks for the real world scenario Stefan. I'm definitely going to
revisit migrating to SSD's once I get it all up and running!
On a different note: I was thinking of doing the disk setup like this:
<sda1><sdb1>
|
<md1>
|
<ext3> <!-- System Partition
<sda2><sdb2>
|
<md2>
|
<drbd>
|
<pv1>
|
<vg1>
|
<lv(s)>
|
<ext3> <!-- Application Partition
and
<sda3><sdb3>
|
<md3>
|
<drbd>
|
<pv2>
|
<vg2>
|
<lv(s)>
|
<ext3> <!-- Postgresql Partition
Putting in the lvm mainly to do snapshot style backups. This makes me
wonder if it's a doable usecase to add more drives and have more than
one drbd partition in a pv group and then resize the lv if needed to
increase space (Man that's wild stuff).
But anyway, is setting up a pv on top of a drbd a good idea?
J
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