whats the best storage setup for KVM when using direct attached raid?
surely using disk image files on a parent ext4/xfs file system isn't the
best performance?Should I use host lvm logical volumes as guest
vdisks? we're going to be running various database servers in dev/test
and
On 10/21/2013 2:21 AM, Andrew Holway wrote:
Remember that a single SATA harddrive has an approximate equivalent
performance of 1G ethernet. 100MB/s or so.
A) I have a SATA3 3TB disk on my windows PC that is twice that fast on
sequential IO
B) these new servers are SAS2 with 15k hybrid drives,
On 21 October 2013 10:26, John R Pierce pie...@hogranch.com wrote:
On 10/21/2013 2:21 AM, Andrew Holway wrote:
Remember that a single SATA harddrive has an approximate equivalent
performance of 1G ethernet. 100MB/s or so.
A) I have a SATA3 3TB disk on my windows PC that is twice that fast on
[ ... ]
Remember that a single SATA harddrive has an approximate equivalent
performance of 1G ethernet. 100MB/s or so.
[... ]
Andrew
In the area of virtualization it is IOPS what counts, not sequential
read/write. And in terms of IOPS SATA drives are the worst option as
storage backend.
On 21 October 2013 12:57, Alexander Dalloz ad+li...@uni-x.org wrote:
[ ... ]
Remember that a single SATA harddrive has an approximate equivalent
performance of 1G ethernet. 100MB/s or so.
[... ]
Andrew
In the area of virtualization it is IOPS what counts, not sequential
read/write. And
On 10/21/2013 3:44 AM, Andrew Holway wrote:
A) I have a SATA3 3TB disk on my windows PC that is twice that fast on
sequential IO
Really? what model?
Seagate ST3000DM001
--
john r pierce 37N 122W
somewhere on the middle of the left coast
In our development lab, I am installing 4 new servers, that I want to
use for hosting KVM. each server will have its own direct attached
raid. I'd love to be able to 'pool' this storage, but over gigE, I
probably shouldn't even try.
most of the VM's will be running CentOS 5 and 6, some of
Am Sat, 19 Oct 2013 23:22:12 -0700
schrieb John R Pierce pie...@hogranch.com:
In our development lab, I am installing 4 new servers, that I want to
use for hosting KVM. each server will have its own direct attached
raid. I'd love to be able to 'pool' this storage, but over gigE, I
On 20/10/13 02:22, John R Pierce wrote:
In our development lab, I am installing 4 new servers, that I want to
use for hosting KVM. each server will have its own direct attached
raid. I'd love to be able to 'pool' this storage, but over gigE, I
probably shouldn't even try.
I've build
On 10/20/2013 8:55 AM, Rainer Duffner wrote:
For your setup, I'd invest more in the hardware itself (redundant PSU,
more redundancy in the disks, more powerful RAID-controller with
battery-backed cache, the more hardware is hot-pluggable, the better
etc..)
got all that. dual PSUs which will
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