On Mon, Mar 14, 2011 at 5:24 PM, Nataraj incoming-cen...@rjl.com wrote:
I have a kvm virtual host running on what will become CentOS 6 with 12GB of
memory and a Quad Xeon X5560 2.8Ghz . The store for virtual machines will
be a software raid 6 array of 6 disks with an LVM layered on top. I'm
I have a kvm virtual host running on what will become CentOS 6 with 12GB
of memory and a Quad Xeon X5560 2.8Ghz . The store for virtual
machines will be a software raid 6 array of 6 disks with an LVM layered
on top. I'm not initially planning any major overcommitment of
resources, though there
On Mon, Mar 14, 2011 at 5:24 PM, Nataraj incoming-cen...@rjl.com wrote:
[snip]
In recent years people seem to configure a wide range of different swap
allocations. I was thinking initially to spread swap across seperate
non-raid partitions on 4 of these disks, but the downside of that is if I
on 14:24 Mon 14 Mar, Nataraj (incoming-cen...@rjl.com) wrote:
I have a kvm virtual host running on what will become CentOS 6 with 12GB
of memory and a Quad Xeon X5560 2.8Ghz . The store for virtual
machines will be a software raid 6 array of 6 disks with an LVM layered
on top. I'm not
On 03/14/11 3:02 PM, Dr. Ed Morbius wrote:
I'd allocate swap to the raw devices rather than the RAID devices,
why would you use RAID and not RAID your swap?the primary (many say,
only) purpose of RAID is to maintain uptime, and having any swap device
fail will ensure your system
On 03/14/2011 03:07 PM, John R Pierce wrote:
On 03/14/11 3:02 PM, Dr. Ed Morbius wrote:
I'd allocate swap to the raw devices rather than the RAID devices,
why would you use RAID and not RAID your swap?the primary (many say,
only) purpose of RAID is to maintain uptime, and having any swap
On Mon, Mar 14, 2011 at 11:45 PM, Nataraj incoming-cen...@rjl.com wrote:
Do you have any sense of whether this takes a big performance hit with
software raid? (I was actually planning on hardware raid but the system
got ordered incorrectly).
I have lots of machines running linux raid and swap
On 03/14/11 4:45 PM, Nataraj wrote:
Do you have any sense of whether this takes a big performance hit with
software raid? (I was actually planning on hardware raid but the system
got ordered incorrectly).
if you have adequate memory for your workload, very little data gets
written to swap,
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