On Wed, 1 Mar 2000, Leon Brouwers wrote:
> ***** DAC960 RAID Driver Version 2.2.4 of 23 August 1999 *****
> Copyright 1998-1999 by Leonard N. Zubkoff <[EMAIL PROTECTED]>
> Configuring Mylex DAC1164P PCI RAID Controller
> 0:1 Vendor: WDIGTL Model: WDE9150 ULTRA2 Revision: 1.20
> 0:2 Vendor: WDIGTL Model: WDE9150 ULTRA2 Revision: 1.20
> 0:3 Vendor: WDIGTL Model: WDE9150 ULTRA2 Revision: 1.20
>
> In raid 5 configuration, machine has PIII-450 128 Mb/256Mb swap on
> 2.2.14 + mingo's raid patches
>
> -------Sequential Output-------- ---Sequential Input-- --Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> 256 5451 78.7 10035 8.5 4000 7.3 3975 55.3 18765 11.3 262.8 3.9
Those are some disappointing numbers. I've got:
***** DAC960 RAID Driver Version 2.2.4 of 23 August 1999 *****
Copyright 1998-1999 by Leonard N. Zubkoff <[EMAIL PROTECTED]>
Configuring Mylex DAC960PTL1 PCI RAID Controller
Firmware Version: 4.07-0-29, Channels: 1, Memory Size: 8MB
... 5 of the following drives in a u2w hot swap system
0:0 Vendor: IBM Model: DNES-309170Y Revision: SA30
Serial Number: AJGN8615
Disk Status: Online, 17915904 blocks, 1 resets
Logical Drives:
/dev/rd/c0d0: RAID-5, Online, 71663616 blocks, Write Thru
PIII-500, 256mb, AcceleRAID 250
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
1024 6766 85.3 9150 7.6 6452 11.9 7840 94.8 26361 13.0 268.0 2.5
I wonder how much better your numbers would be with more drives on
the DAC1164P. I just noticed the 1 resets above (on all the drives).
This box isn't in production yet. I'll have to look into that and see
if there's a problem.
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