[Users] Template creation time is high.
Hi Folks, Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ? -- Regards, Rahul =======================================================
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one). what's the storage layout you have?
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
The machine that is the SPM has 32Gb of RAM. My storage layout is on a NFS. Is that the reason of the longer time taken, is 30mins for template creation under expected time of a NFS ? On Thu, Jun 14, 2012 at 12:20 PM, Itamar Heim <iheim@redhat.com> wrote:
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one).
what's the storage layout you have?
-- Regards, Rahul ==============================**=========================
______________________________**_________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/**mailman/listinfo/users<http://lists.ovirt.org/mailman/listinfo/users>
-- Regards, Rahul =======================================================
On 06/14/2012 10:12 AM, Rahul Upadhyaya wrote:
The machine that is the SPM has 32Gb of RAM. My storage layout is on a NFS. Is that the reason of the longer time taken, is 30mins for template creation under expected time of a NFS ?
how many spindles does the NFS has? what's your bandwidth to it? 30 minutes sounds a bit slow to me, but depends on the network and storage as well what do you see from i/o behavior on the SPM? on network utilization?
On Thu, Jun 14, 2012 at 12:20 PM, Itamar Heim <iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one).
what's the storage layout you have?
-- Regards, Rahul ==============================__=========================
_________________________________________________ Users mailing list Users@ovirt.org <mailto:Users@ovirt.org> http://lists.ovirt.org/__mailman/listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>
-- Regards, Rahul =======================================================
On 06/14/2012 10:36 AM, Itamar Heim wrote:
On 06/14/2012 10:12 AM, Rahul Upadhyaya wrote:
The machine that is the SPM has 32Gb of RAM. My storage layout is on a NFS. Is that the reason of the longer time taken, is 30mins for template creation under expected time of a NFS ?
how many spindles does the NFS has? what's your bandwidth to it?
My guess - 100Mbps link to the storage. Y.
30 minutes sounds a bit slow to me, but depends on the network and storage as well what do you see from i/o behavior on the SPM? on network utilization?
On Thu, Jun 14, 2012 at 12:20 PM, Itamar Heim <iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one).
what's the storage layout you have?
-- Regards, Rahul ==============================__=========================
_________________________________________________ Users mailing list Users@ovirt.org <mailto:Users@ovirt.org> http://lists.ovirt.org/__mailman/listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
NFS is always slower because we will always create a preallocated disk. I would say that 30 minutes for 10GB on NFS might be a little slow but not significantly. On 06/14/2012 10:12 AM, Rahul Upadhyaya wrote:
The machine that is the SPM has 32Gb of RAM. My storage layout is on a NFS. Is that the reason of the longer time taken, is 30mins for template creation under expected time of a NFS ?
On Thu, Jun 14, 2012 at 12:20 PM, Itamar Heim <iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one).
what's the storage layout you have?
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org <mailto:Users@ovirt.org> http://lists.ovirt.org/mailman/listinfo/users
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Dafna Ron
On 06/14/2012 10:48 AM, Dafna Ron wrote:
NFS is always slower because we will always create a preallocated disk. I would say that 30 minutes for 10GB on NFS might be a little slow but not significantly.
Dafna - it will create RAW, not pre-allocated, right?
On 06/14/2012 10:12 AM, Rahul Upadhyaya wrote:
The machine that is the SPM has 32Gb of RAM. My storage layout is on a NFS. Is that the reason of the longer time taken, is 30mins for template creation under expected time of a NFS ?
On Thu, Jun 14, 2012 at 12:20 PM, Itamar Heim<iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one).
what's the storage layout you have?
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org<mailto:Users@ovirt.org> http://lists.ovirt.org/mailman/listinfo/users
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
On 06/14/2012 10:49 AM, Itamar Heim wrote:
On 06/14/2012 10:48 AM, Dafna Ron wrote:
NFS is always slower because we will always create a preallocated disk. I would say that 30 minutes for 10GB on NFS might be a little slow but not significantly.
Dafna - it will create RAW, not pre-allocated, right?
yes, sorry, my mistake :) it will create RAW disk type which will always take longer
On 06/14/2012 10:12 AM, Rahul Upadhyaya wrote:
The machine that is the SPM has 32Gb of RAM. My storage layout is on a NFS. Is that the reason of the longer time taken, is 30mins for template creation under expected time of a NFS ?
On Thu, Jun 14, 2012 at 12:20 PM, Itamar Heim<iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one).
what's the storage layout you have?
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org<mailto:Users@ovirt.org> http://lists.ovirt.org/mailman/listinfo/users
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Dafna Ron
On 06/14/2012 10:50 AM, Dafna Ron wrote:
On 06/14/2012 10:49 AM, Itamar Heim wrote:
On 06/14/2012 10:48 AM, Dafna Ron wrote:
NFS is always slower because we will always create a preallocated disk. I would say that 30 minutes for 10GB on NFS might be a little slow but not significantly.
Dafna - it will create RAW, not pre-allocated, right?
yes, sorry, my mistake :) it will create RAW disk type which will always take longer
longer than what? it's not related to NFS. creating a template requires to copy all relevant blocks, same as for other storage types.
On 06/14/2012 10:12 AM, Rahul Upadhyaya wrote:
The machine that is the SPM has 32Gb of RAM. My storage layout is on a NFS. Is that the reason of the longer time taken, is 30mins for template creation under expected time of a NFS ?
On Thu, Jun 14, 2012 at 12:20 PM, Itamar Heim<iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 06/14/2012 09:28 AM, Rahul Upadhyaya wrote:
Hi Folks,
Template creation time for me is around 30mins for a 10 GB (Disk Space) VM. My oVirt Manager has 4GB RAM. Is this within expected time for template creation, if not, then what could I check to possibly improve the performance in this regards ?
the template creation happens on the SPM, not on the manager (unless you are running all in one).
what's the storage layout you have?
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org<mailto:Users@ovirt.org> http://lists.ovirt.org/mailman/listinfo/users
-- Regards, Rahul =======================================================
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
participants (4)
-
Dafna Ron -
Itamar Heim -
Rahul Upadhyaya -
Yaniv Kaul