Re: [Lustre-discuss] OST - low MB/s

2009-09-10 Thread Rafael David Tinoco
, 474 MB/s Much better :D So basically linux + mpt fusion + multipathd + mdadm not so good option for OST!!! -Original Message- From: hung-sheng.t...@sun.com [mailto:hung-sheng.t...@sun.com] Sent: Thursday, September 10, 2009 6:25 PM To: Rafael David Tinoco Subject: Re: [Lustre-discuss] OST

Re: [Lustre-discuss] OST - low MB/s

2009-09-10 Thread Rafael David Tinoco
Tsao) Sent: Thursday, September 10, 2009 5:50 PM To: Rafael David Tinoco Cc: lustre-discuss@lists.lustre.org Subject: Re: [Lustre-discuss] OST - low MB/s raid 6 chunk size=128k the full strip size will be 128k*8 (for 10 disks 8+2 raid 6) in Ur dd test one should use bs=128k*8, then each 8 HDD wi

Re: [Lustre-discuss] OST - low MB/s

2009-09-10 Thread Rafael David Tinoco
...@lists.lustre.org [mailto:lustre-discuss-boun...@lists.lustre.org] On Behalf Of Rafael David Tinoco Sent: Thursday, September 10, 2009 5:10 PM To: lustre-discuss@lists.lustre.org Subject: Re: [Lustre-discuss] OST - low MB/s With this RAID5 configuration Im getting: r...@a02n00:~# dd if=/dev/zero of

Re: [Lustre-discuss] OST - low MB/s

2009-09-10 Thread Rafael David Tinoco
+0 records out 131072 bytes (1.3 GB) copied, 5.12 seconds, 256 MB/s So, 80MB/s using these md20 as OSTs isnt quite right . From: lustre-discuss-boun...@lists.lustre.org [mailto:lustre-discuss-boun...@lists.lustre.org] On Behalf Of Rafael David Tinoco Sent: Thursday, September 10, 2009 4

[Lustre-discuss] OST - low MB/s

2009-09-10 Thread Rafael David Tinoco
8.00 0.000.00 0.00 0.00 md20 0.00 0.00 0.00 165.00 0.0082.50 1024.00 0.000.00 0.00 0.00 md21 0.00 0.00 0.00 165.00 0.0082.50 1024.00 0.000.00 0.00 0.00 Any clues ? Rafael David Tinoco - Sun Micro

Re: [Lustre-discuss] OSTs hanging while running IOR

2009-09-09 Thread Rafael David Tinoco
PM To: Rafael David Tinoco Cc: lustre-discuss@lists.lustre.org Subject: Re: [Lustre-discuss] OSTs hanging while running IOR Hello! On Sep 9, 2009, at 1:31 PM, Rafael David Tinoco wrote: > One of my OSSs crashes, sometimes one, sometimes another. With the > following error: That's

Re: [Lustre-discuss] OSTs hanging while running IOR

2009-09-09 Thread Rafael David Tinoco
Forget the file.. sorry -Original Message- From: lustre-discuss-boun...@lists.lustre.org [mailto:lustre-discuss-boun...@lists.lustre.org] On Behalf Of Rafael David Tinoco Sent: Wednesday, September 09, 2009 7:30 PM To: 'Brian J. Murrell'; lustre-discuss@lists.lustre.org S

Re: [Lustre-discuss] OSTs hanging while running IOR

2009-09-09 Thread Rafael David Tinoco
Im attaching the messages (only the error part) file so we don't have these mail formatting problems. -- Can you provide a bit more of the log before the above so we can see what the stack trace is in reference to? Also, try to eliminate the white-space between lines. Are you getting any

[Lustre-discuss] OSTs hanging while running IOR

2009-09-09 Thread Rafael David Tinoco
000730b8cd40 ... Any Ideas ? Tks Rafael Tinoco Rafael David Tinoco - Sun Microsystems Systems Engineer - High Performance Computing rafael.tin...@sun.com - 55.11.5187.2194 ___ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http