Re: [Lustre-discuss] Virtual machines on Lustre

2014-06-11 Thread Oliver Mangold
On 11.06.2014 20:29, Christopher J. Morrone wrote: > Odds are that you would be able to do it. How well it would perform, > and how easy it would be to admin are other questions. :) > We did it with KVM and PCI device passthrough for the IB and SAS adapters. Works fine and with little performanc

Re: [Lustre-discuss] number of inodes in zfs MDT

2014-06-11 Thread Scott Nolin
We tried a few arc tunables as noted here: https://jira.hpdd.intel.com/browse/LU-2476 However, I didn't find any clear benefit in the long term. We were just trying a few things without a lot of insight. Scott On 6/9/2014 12:37 PM, Anjana Kar wrote: Thanks for all the input. Before we move

Re: [Lustre-discuss] Virtual machines on Lustre

2014-06-11 Thread Christopher J. Morrone
Odds are that you would be able to do it. How well it would perform, and how easy it would be to admin are other questions. :) Unless you have other needs for it to be Lustre, you might consider Ceph. I believe that Ceph is used quite commonly to serve VM images. Chris On 06/10/2014 03:41

Re: [Lustre-discuss] Virtual machines on Lustre

2014-06-11 Thread E.S. Rosenberg
On Wed, Jun 11, 2014 at 3:57 PM, Andrew Holway wrote: > > On 11 Jun 2014 14:22, "E.S. Rosenberg" wrote: > > > > > > > > > > On Wed, Jun 11, 2014 at 2:03 AM, Colin Faber wrote: > >> > >> Yes. Many of the various VM products will work just fine with lustre. > However they will not perform as well

Re: [Lustre-discuss] Virtual machines on Lustre

2014-06-11 Thread E.S. Rosenberg
On Wed, Jun 11, 2014 at 2:03 AM, Colin Faber wrote: > Yes. Many of the various VM products will work just fine with lustre. > However they will not perform as well as native hw. > I think he means that the virtual disk images sit on lustre instead of netapp or other storage servers... On Jun 10,

[Lustre-discuss] Directory access triggers OI scrub

2014-06-11 Thread Tommi T
Hi, One user complained that he cannot access one directory. Accessing that directory triggers OI scrubbing on the MDS but it does not find any errors. Filesystem is created with lustre 2.1.3 tools and now server side is upgraded to b2_5 branch b7243c0 +kernel-2.6.32.431.17.1.el6_lustre.Is ther