LSI 1030, RAID1 unsupported

[Roger Marquis]

On Sun May 23 2004 Scott Long wrote:
>The mpt and amr drivers are largely unmaintained right now as LSI
>no longer sponsors an engineer to take care of them.  I'm not sure
>what else to say about that other than we would gladly accept a new
>maintainer.

Is this likely to change in the foreseeable future?  I just put
together an IBM e325 and discovered that the LSI 1030's performance
in RAID1 mode is abominable (5.3-RELEASE-p4, amd64, with Fujitsu
MAP3367NCs).

 --------[ raid1, bytebench ]------------------------------------------

 TEST                                    BASELINE     RESULT      INDEX
 File Copy  (30 seconds)                    179.0     2353.0       13.1
 Pipe-based Context Switching Test         1318.5        0.0        0.0
 Shell scripts (8 concurrent)                 4.0      334.9       83.7

 --------[ raid0, bytebench ]------------------------------------------

 File Copy  (30 seconds)                    179.0    62105.0      347.0
 Pipe-based Context Switching Test         1318.5        0.0        0.0
 Shell scripts (8 concurrent)                 4.0      410.5      102.6

 --------[ raid1, bonnie ]---------------------------------------------

     -------Sequential Output-------- ---Sequential Input--    --Random--
     -Per Char- --Block--- -Rewrite-- -Per Char-  --Block---   --Seeks---
  MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec  %CPU K/sec   %CPU  /sec %CPU
 100  2351  1.6  1872  0.3  3132  0.5 120906 99.7 1809091 99.4  130039.0 98.3
      ^^^^       ^^^^       ^^^^
 --------[ raid0, bonnie ]---------------------------------------------

     -------Sequential Output-------- ---Sequential Input--    --Random--
     -Per Char- --Block--- -Rewrite-- -Per Char-  --Block---   --Seeks---
  MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec  %CPU K/sec   %CPU /sec %CPU
 100 66495 44.5 58027 10.3 72578 11.9 116567 99.7 1149760 99.6 115243.9 98.5
     ^^^^^      ^^^^^      ^^^^^
 ----------------------------------------------------------------------

At least there's room for an Adaptec 2200s.

-- 
Roger Marquis
Roble Systems Consulting
http://www.roble.com/