On Wed, Jun 27, 2012 at 05:28:43PM -0500, Nathan Stratton wrote:
[root@virt01 ~]# dd if=/dev/zero of=foo bs=1M count=5k
5120+0 records in
5120+0 records out
5368709120 bytes (5.4 GB) copied, 26.8408 s, 200 MB/s
But doing a dd if=/dev/zero bs=1024k within a VM, whose image was mounted on
-
From: gluster-users-boun...@gluster.org
[mailto:gluster-users-boun...@gluster.org] On Behalf Of Nicolas Sebrecht
Sent: 28 June 2012 10:31
To: Thomas Jackson
Cc: 'gluster-users'
Subject: [Gluster-users] Re: about HA infrastructure for hypervisors
The 28/06/12, Thomas Jackson wrote:
Why don't
-users] about HA infrastructure for hypervisors
On Thu, Jun 28, 2012 at 11:25:20AM +0200, Nicolas Sebrecht wrote:
We excluded ethernet due to searches on the web. It appeared that
ethernet has bad latency.
I read it on the web, it must be true :-)
As I said: don't use 10GE over CAT6/RJ45
-boun...@gluster.org [mailto:gluster-users-
boun...@gluster.org] On Behalf Of Fernando Frediani (Qube)
Sent: 28 June 2012 11:43
To: 'Nicolas Sebrecht'; 'Thomas Jackson'
Cc: 'gluster-users'
Subject: Re: [Gluster-users] about HA infrastructure for hypervisors
You should indeed to use the same
'
Subject: Re: [Gluster-users] about HA infrastructure for hypervisors
You should indeed to use the same server running as a storage brick as a
KVM host to maximize hardware and power usage. Only thing I am not sure
is if you can limit the amount of host memory Gluster can eat so most of
it
gets
On Thu, 28 Jun 2012, Brian Candler wrote:
On Wed, Jun 27, 2012 at 05:28:43PM -0500, Nathan Stratton wrote:
[root@virt01 ~]# dd if=/dev/zero of=foo bs=1M count=5k
5120+0 records in
5120+0 records out
5368709120 bytes (5.4 GB) copied, 26.8408 s, 200 MB/s
But doing a dd if=/dev/zero bs=1024k
On Thu, 28 Jun 2012, Brian Candler wrote:
On Thu, Jun 28, 2012 at 11:25:20AM +0200, Nicolas Sebrecht wrote:
We excluded ethernet due to searches on the web. It appeared that
ethernet has bad latency.
I read it on the web, it must be true :-)
As I said: don't use 10GE over CAT6/RJ45
On Thu, 28 Jun 2012, Brian Candler wrote:
As I said: don't use 10GE over CAT6/RJ45 (10Gbase-T). That does indeed have
poor latency. As I understand it: in order to get such high data rates over
copper, it has to employ mechanisms similar to DSL lines, like interleaving,
which means 10G has
On Thu, Jun 28, 2012 at 10:40:43AM -0500, Nathan Stratton wrote:
But wait, yes, I have 16 physical disks, but I am running distribute
+ replicate so the 8 physical boxes are broken up into 4 pairs of
redundant boxes. When I do a write, I am writing on two servers, or
4 physical disks. So in my
Hi,
We are going to try glusterfs for our new HA servers.
To get full HA, I'm thinking of building it this way:
++ ++
|| ||
| KVM hypervisor |-++---| KVM hypervisor |
|
- Original Message -
From: Nicolas Sebrecht nsebre...@piing.fr
To: gluster-users gluster-users@gluster.org
Sent: Wednesday, June 27, 2012 3:06:30 AM
Subject: [Gluster-users] about HA infrastructure for hypervisors
Hi,
We are going to try glusterfs for our new HA servers
] On Behalf Of Nicolas Sebrecht
Sent: Wednesday, June 27, 2012 4:13 AM
To: Gerald Brandt
Cc: gluster-users
Subject: [Gluster-users] Re: about HA infrastructure for hypervisors
The 27/06/12, Gerald Brandt wrote:
Hi,
If your switch breaks, you are done. Put each Gluster server on it's own
On Wed, Jun 27, 2012 at 10:06:30AM +0200, Nicolas Sebrecht wrote:
We are going to try glusterfs for our new HA servers.
To get full HA, I'm thinking of building it this way:
++ ++
|| ||
On Wed, Jun 27, 2012 at 03:07:21PM -0500, Nathan Stratton wrote:
I've made a test setup like this, but unfortunately I haven't yet been able
to get half-decent performance out of glusterfs 3.3 as a KVM backend. It
may work better if you use local disk for the VM images, and within the VM
On Wed, 27 Jun 2012, Brian Candler wrote:
For a 16-disk array, your IOPS is not bad. But are you actually storing a
VM image on it, and then doing lots of I/O within that VM (as opposed to
mounting the volume form within the VM)? If so, can you specify your exact
configuration, including OS
,
Thomas
-Original Message-
From: gluster-users-boun...@gluster.org
[mailto:gluster-users-boun...@gluster.org] On Behalf Of Nicolas Sebrecht
Sent: Wednesday, 27 June 2012 9:13 PM
To: Gerald Brandt
Cc: gluster-users
Subject: [Gluster-users] Re: about HA infrastructure for hypervisors
The 27
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