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From: Richard Scobie <richard@sauce.co.nz>
To: stefanrin@gmail.com
Cc: xfs@oss.sgi.com
Subject: Re: A little RAID experiment
Date: Fri, 27 Apr 2012 10:33:39 +1200	[thread overview]
Message-ID: <4F99CD43.5070306@sauce.co.nz> (raw)

I know you were interested in hardware RAID controllers, but out of 
curiosity, this is the result on a 16 x 1TB SATA linux md software RAID6 
array.

Formatted xfs, with external journal on an independent SATA device, 
mounted delaylog,inode64,logbsize=256k,logdev=/dev/md0,noatime,pquota.

Operations performed:  0 Read, 26065 Write, 0 Other = 26065 Total
Read 0b  Written 203.63Mb  Total transferred 203.63Mb  (13.575Mb/sec)
  1737.65 Requests/sec executed

Filesystem is 44% full, kernel 2.6.39.2.

xfs_bmap test_file.0
test_file.0:
         0: [0..8388607]: 9565100544..9573489151
         1: [8388608..16777215]: 9578354176..9586742783

Regards,

Richard

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             reply	other threads:[~2012-04-26 22:33 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-26 22:33 Richard Scobie [this message]
2012-04-27 21:30 ` A little RAID experiment Emmanuel Florac
2012-04-28  4:15   ` Richard Scobie
  -- strict thread matches above, loose matches on Subject: below --
2012-04-25  8:07 Stefan Ring
2012-04-25 14:17 ` Roger Willcocks
2012-04-25 16:23   ` Stefan Ring
2012-04-27 14:03     ` Stan Hoeppner
2012-04-26  8:53   ` Stefan Ring
2012-04-27 15:10     ` Stan Hoeppner
2012-04-27 15:28     ` Joe Landman
2012-04-28  4:42       ` Stan Hoeppner
2012-04-27 13:50 ` Stan Hoeppner
2012-05-01 10:46   ` Stefan Ring
2012-05-30 11:07     ` Stefan Ring
2012-05-31  1:30       ` Stan Hoeppner
2012-05-31  6:44         ` Stefan Ring
2012-07-16 19:57 ` Stefan Ring
2012-07-16 20:03   ` Stefan Ring
2012-07-16 20:05     ` Stefan Ring
2012-07-16 21:27   ` Stan Hoeppner
2012-07-16 21:58     ` Stefan Ring
2012-07-17  1:39       ` Stan Hoeppner
2012-07-17  5:26         ` Dave Chinner
2012-07-18  2:18           ` Stan Hoeppner
2012-07-18  6:44             ` Stefan Ring
2012-07-18  7:09               ` Stan Hoeppner
2012-07-18  7:22                 ` Stefan Ring
2012-07-18 10:24                   ` Stan Hoeppner
2012-07-18 12:32                     ` Stefan Ring
2012-07-18 12:37                       ` Stefan Ring
2012-07-19  3:08                         ` Stan Hoeppner
2012-07-25  9:29                           ` Stefan Ring
2012-07-25 10:00                             ` Stan Hoeppner
2012-07-25 10:08                               ` Stefan Ring
2012-07-25 11:00                                 ` Stan Hoeppner
2012-07-26  8:32                             ` Dave Chinner
2012-09-11 16:37                               ` Stefan Ring
2012-07-16 22:16     ` Stefan Ring
2012-10-10 14:57 ` Stefan Ring
2012-10-10 21:27   ` Dave Chinner
2012-10-10 22:01     ` Stefan Ring

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