Re: SMP and RAID?

Bart Schuller (schuller+kernel@lunatech.com)
Fri, 21 Aug 1998 11:45:15 +0200


On Fri, Aug 21, 1998 at 10:05:59AM +0800, getrpml@terrorist.math.ntu.edu.tw wrote:
> Does this work together? I am not so sure, having heard of
> some stories. Anyway, we have a spare dual PPro board with plenty of
> memory and some older drives which we are hoping to run in RAID.

Look at these figures: dual PII 333, ncr53c875 SCSI, 3 disks in Raid5.
Pay particular attention to the uptime. This machine is database server
and webserver.

$ uptime
11:36am up 114 days, 23:54, 1 user, load average: 1.32, 1.17, 1.11

$ uname -a
Linux something 2.1.97 #5 SMP Thu Apr 23 14:41:32 CEST 1998 i686 unknown

$ cat /proc/mdstat
Personalities : [4 raid5]
read_ahead 128 sectors
md0 : active raid5 sda3 sdb3 sdc3 1046656 blocks level 5, 32k chunk,
algorithm 2 [3/3] [UUU]
md1 : active raid5 sda4 sdb4 sdc4 6912128 blocks level 5, 32k chunk,
algorithm 2 [3/3] [UUU]
md2 : inactive
md3 : inactive

$ df
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/sda2 124677 36676 81563 31% /
/dev/md0 1013792 213728 747732 22% /usr
/dev/md1 6695252 2682820 3666828 42% /opt

-- 
The idea is that the first face shown to people is one they can readily
accept - a more traditional logo. The lunacy element is only revealed
subsequently, via the LunaDude. [excerpted from the Lunatech Identity Manual]

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