On Wed, 6 Apr 2011, Scott Robbins wrote:
Not all that unique, but a bit better--I think it's
VolumeGroup00/lvm_root, VolumeGroup00/lvm_swap, and things like that.
(Keeping both LVs in the same VG by default.)
As far as I know it's much better than that:
The volume group by default with EL6
On 5.4.2011 21.49, compdoc wrote:
For reasons of speed and ease of maintenance and backups, what I've settled
on is: a small separate drive for the host to boot from, a small separate
drive for the guest OSes (I like using qcow2 on WD Raptors), and then a
large array on a raid controller for
On Wed, 6 Apr 2011, Jussi Hirvi wrote:
On 5.4.2011 21.49, compdoc wrote:
For reasons of speed and ease of maintenance and backups, what I've settled
on is: a small separate drive for the host to boot from, a small separate
drive for the guest OSes (I like using qcow2 on WD Raptors), and then
Direct comparisons between the two were difficult to judge, but the
general result was that the Host was between 2:1 and 3:1 better than the
Guest, which seems to be a rather large performance gap. Latency
differences were all over the map, which I find puzzling. The Host is
64-bit and the
On Tue, Apr 5, 2011 at 11:49 AM, compdoc comp...@hotrodpc.com wrote:
I've been working with VMs for a while now and have tried various ways to
set up guests. Block devices can be done with or without LVM, although I've
stopped using LVM on my systems these days.
Just curious, why have you
Just curious, why have you stopped using LVM?
Simply for ease of maintenance: some recovery and backup utilities like
clonezilla can't work with LVM. And because the same names for volume groups
are used for each centos install, so trying to attach a drive or volume to a
new system for
On Tue, Apr 05, 2011 at 08:22:08PM -0600, compdoc wrote:
Just curious, why have you stopped using LVM?
Simply for ease of maintenance: some recovery and backup utilities like
clonezilla can't work with LVM. And because the same names for volume groups
are used for each centos install, so
On 04/04/2011 09:00 AM, compdoc wrote:
It's possible to set up guests to use a block device that will get you the
same disk I/O as the underlying storage.
Is that what you're seeing? What speed does the host see when benchmarking
the RAID volumes, and what speeds do the guests see?
Yes,
On 04/04/11 11:32 AM, Chuck Munro wrote:
I'd love to hear what other software RAID users think, especially
regarding large-capacity drives. It's rare for a modern drive to hand
out bad data without an accompanying error condition (which the md
driver should handle), but I have read that
Hello all,
I'm having quite an interesting time getting up to speed with KVM/QEMU
and the various ways of creating virtual Guest VMs. But disk I/O
performance remains a bit of a question mark for me. I'm looking for
suggestions and opinions
This new machine has tons of disk space, lots
List
Subject: [CentOS] KVM Host Disk Performance
Hello all,
I'm having quite an interesting time getting up to speed with KVM/QEMU and
the various ways of creating virtual Guest VMs. But disk I/O performance
remains a bit of a question mark for me. I'm looking for suggestions and
opinions
I'm having quite an interesting time getting up to speed with KVM/QEMU
and the various ways of creating virtual Guest VMs. But disk I/O
performance remains a bit of a question mark for me. I'm looking for
suggestions and opinions
It's possible to set up guests to use a block device that
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