Re: [Lustre-discuss] Using NFS to mount lustre

Hi Trevor, Thanks for the well define explanation. I see that you have a successful testing with Lustre cluster in ESXi. In my case I was more of hoping to use Lustre as an alternate storage for ESXi instead of expensive SAN. While I am aware and have a couple of successful deployment of ESX

Re: [Lustre-discuss] Using NFS to mount lustre

Lustre files can be re-exported using NFS . From the presentation by Oleg in Lug-2008 ( http://wiki.lustre.org/images/d/da/LUG08-Lustre-NFS.pdf ) Lustre is a normal local fs from NFS perspective Just add an entry to /etc/export *on lustre client*/NFS server give it try. Hope that helps.

Re: [Lustre-discuss] Using NFS to mount lustre

Thanks for the pointer. Just a quick question, will the performance suffer since we have to add another NFS layer to the lustre client? Regards Beh On Fri, Jun 21, 2013 at 4:07 PM, Parinay Kondekar parinay_konde...@xyratex.com wrote: Lustre files can be re-exported using NFS . From the

[Lustre-discuss] Poor Direct-IO Performance with Lustre-2.1.5

Hi, I am experiencing poor direct-IO performance using Lustre 2.1.5 (latest stable) on CentOS 6.3. Two OSS servers connect to the same MD3200 (daisy chained by 4 MD1200). 5 disks (from each MD) form a RAID-5 virtual disk as an OST. 8 OSTs are created in the file system. RAID segment size is

[Lustre-discuss] Fwd: Re: Using NFS to mount lustre

FYISent from Samsung mobile Original message Subject: Re: [Lustre-discuss] Using NFS to mount lustre From: Michael Watters To: parinay_konde...@xyratex.com CC: One thing to note is that you need to make sure that your UIDs match on the client/server. I

Re: [Lustre-discuss] Using NFS to mount lustre

From: Teik Hooi Beh th...@thbeh.commailto:th...@thbeh.com Date: Friday, June 21, 2013 1:29 AM To: Parinay Kondekar parinay_konde...@xyratex.commailto:parinay_konde...@xyratex.com Cc: lustre-discuss@lists.lustre.orgmailto:lustre-discuss@lists.lustre.org

[Lustre-discuss] Slow Copy (Small Files) 1 RPC In Flight?

Hello, I am new to Lustre and wanted to run a small simple small copy test between 2 virtual machines from MDT/OST server to client's local disk. I realize small file performance is never fast, but this seems particularly slow considering the data is all buffered in memory with little to no disk

Re: [Lustre-discuss] Slow Copy (Small Files) 1 RPC In Flight?

test between 2 virtual machines from MDT/OST server to client's local disk. Andrew, I'm confused by the description of your test. Can you clarify? -- Brett Lee Sr. Systems Engineer Intel High Performance Data Division From: lustre-discuss-boun...@lists.lustre.org

Re: [Lustre-discuss] Slow Copy (Small Files) 1 RPC In Flight?

Hello! On Jun 21, 2013, at 5:42 PM, Andrew Mast wrote: Hello, I am new to Lustre and wanted to run a small simple small copy test between 2 virtual machines from MDT/OST server to client's local disk. I realize small file performance is never fast, but this seems particularly slow

Re: [Lustre-discuss] Slow Copy (Small Files) 1 RPC In Flight?

Hi Brett, Sorry, I think my choice in wording is not correct. One VM is holding the metadata and the objects. I guess that would mean ti is the OSS and MDS? Another VM is the client.It has mounted the lusture filesystem and also has some local disks. The test is to just to use cp to read data to

Re: [Lustre-discuss] Slow Copy (Small Files) 1 RPC In Flight?

Oleg, Very clear, thank you for the explanation, I misunderstood readahead. Yes the 1gb and 10gb file transfer tests was on par with NFS. Our use case is typically compiling and find/grep through (30gb) amounts of source code so it seems we are stuck with small files. Andy On Fri, Jun 21, 2013

Re: [Lustre-discuss] Slow Copy (Small Files) 1 RPC In Flight?

Hello! On Jun 21, 2013, at 9:07 PM, Andrew Mast wrote: Very clear, thank you for the explanation, I misunderstood readahead. Yes the 1gb and 10gb file transfer tests was on par with NFS. Our use case is typically compiling and find/grep through (30gb) amounts of source code so it seems we