LSI 1030, RAID1 unsupported

[Matthew Jacob]

Yes, the performance is abominable. Complain to LSI.



On Sat, 8 Jan 2005 11:59:47 -0800 (PST), Roger Marquis
<marquis at roble.com> wrote:
> 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/
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