Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-20 Thread Kevin Van Maren
Bernd Schubert wrote: Hello Cory, On 09/17/2010 11:31 PM, Cory Spitz wrote: Hi, Bernd. On 09/17/2010 02:48 PM, Bernd Schubert wrote: On Friday, September 17, 2010, Andreas Dilger wrote: On 2010-09-17, at 12:42, Jonathan B. Horen wrote: We're trying to architect

[Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Jonathan B. Horen
We're trying to architect a Lustre setup for our group, and want to leverage our available resources. In doing so, we've come to consider multi-purposing several hosts, so that they'll function simultaneously as MDS OSS. Background: Our OSTs are a NexSan SATAboy (10T), a NexSan SATAbeast (30T),

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Brian J. Murrell
On Fri, 2010-09-17 at 10:42 -0800, Jonathan B. Horen wrote: Background: Our OSTs OSSes. OSTs are the disks that an OSS provides object service with. Primary MDS would be a 72-cpu IBM x3950m2, which would also be an OSS. MDS and OSS on the same node is an unsupported configuration due to

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Jonathan B. Horen
Thanks very much! On Fri, Sep 17, 2010 at 10:52 AM, Brian J. Murrell brian.murr...@oracle.com wrote: On Fri, 2010-09-17 at 10:42 -0800, Jonathan B. Horen wrote: Background: Our OSTs OSSes. OSTs are the disks that an OSS provides object service with. Yes, but... how, then, am I to view

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Brian J. Murrell
On Fri, 2010-09-17 at 11:10 -0800, Jonathan B. Horen wrote: Thanks very much! NP. Yes, but... how, then, am I to view SAN storage devices? I'm not sure. Whatever you can do to present the devices to Linux as block devices. Lustre OSTs and MDTs are Linux block devices. they're already in

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Andreas Dilger
On 2010-09-17, at 12:42, Jonathan B. Horen wrote: We're trying to architect a Lustre setup for our group, and want to leverage our available resources. In doing so, we've come to consider multi-purposing several hosts, so that they'll function simultaneously as MDS OSS. You can't do this

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Andreas Dilger
On 2010-09-17, at 13:19, Brian J. Murrell wrote: On Fri, 2010-09-17 at 11:10 -0800, Jonathan B. Horen wrote: Yes, but... how, then, am I to view SAN storage devices? I'm not sure. Whatever you can do to present the devices to Linux as block devices. Lustre OSTs and MDTs are Linux block

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Bernd Schubert
On Friday, September 17, 2010, Andreas Dilger wrote: On 2010-09-17, at 12:42, Jonathan B. Horen wrote: We're trying to architect a Lustre setup for our group, and want to leverage our available resources. In doing so, we've come to consider multi-purposing several hosts, so that they'll

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Cory Spitz
Hi, Bernd. On 09/17/2010 02:48 PM, Bernd Schubert wrote: On Friday, September 17, 2010, Andreas Dilger wrote: On 2010-09-17, at 12:42, Jonathan B. Horen wrote: We're trying to architect a Lustre setup for our group, and want to leverage our available resources. In doing so, we've come to

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Bernd Schubert
Hello Cory, On 09/17/2010 11:31 PM, Cory Spitz wrote: Hi, Bernd. On 09/17/2010 02:48 PM, Bernd Schubert wrote: On Friday, September 17, 2010, Andreas Dilger wrote: On 2010-09-17, at 12:42, Jonathan B. Horen wrote: We're trying to architect a Lustre setup for our group, and want to

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Robert Read
Hi, On Sep 17, 2010, at 14:49 , Bernd Schubert wrote: Hello Cory, On 09/17/2010 11:31 PM, Cory Spitz wrote: Hi, Bernd. On 09/17/2010 02:48 PM, Bernd Schubert wrote: On Friday, September 17, 2010, Andreas Dilger wrote: On 2010-09-17, at 12:42, Jonathan B. Horen wrote: We're trying to

Re: [Lustre-discuss] Multi-Role/Tasking MDS/OSS Hosts

2010-09-17 Thread Robert Read
Hi, On Sep 17, 2010, at 12:48 , Bernd Schubert wrote: On Friday, September 17, 2010, Andreas Dilger wrote: On 2010-09-17, at 12:42, Jonathan B. Horen wrote: We're trying to architect a Lustre setup for our group, and want to leverage our available resources. In doing so, we've come to