Re: Care and feeding of RAID?

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On 05.09.2006 11:03:45, Steve Cousins wrote:
> Would people be willing to list their setup? Including such things as 
> mdadm.conf file, crontab -l, plus scripts that they use to check the 
> smart data and the array, mdadm daemon parameters and anything else that 
> is relevant to checking and maintaining an array? 

Personally, I use this script from cron:
http://shellscripts.org/project/hdtest
0 3 * * * root /root/sbin/hdtest.sh -l /var/log/smart_ata-ST3250624A_4ND33CLT.log /dev/disk/by-id/ata-ST3250624A_4ND33CLT short
1 3 * * * root /root/sbin/hdtest.sh -l /var/log/smart_ata-ST3250624A_4ND33EJE.log /dev/disk/by-id/ata-ST3250624A_4ND33EJE short
2 3 * * * root /root/sbin/hdtest.sh -l /var/log/smart_ata-ST3250624A_4ND33ELA.log /dev/disk/by-id/ata-ST3250624A_4ND33ELA short

I have made the experience that long tests slow down the raid to a point
where the system becomes unusable.

My mdadm.conf is like this:
---
DEVICE partitions
ARRAY /dev/md/0 level=raid1 num-devices=3 UUID=3559ffcf:14eb9889:3826d6c2:c13731d7
ARRAY /dev/md/1 level=raid5 num-devices=3 UUID=649fc7cc:d4b52c31:240fce2c:c64686e7
ARRAY /dev/md/2 level=raid5 num-devices=3 UUID=9a3bf634:58f39e44:27ba8087:d5189766
   spares=1
ARRAY /dev/md/4 level=raid5 num-devices=3 UUID=d4799be3:5b157884:e38718c2:c05ab840
   spares=1
ARRAY /dev/md/5 level=raid5 num-devices=3 UUID=ca4a6110:4533d8d5:0e2ed4e1:2f5805b2
   spares=1

MAIL root@localhost
---

Also, I run

	mdadm --monitor /dev/md/* --daemonise

from an init script.

Greetings,
	Benjamin
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