I got new HP Proliant DL160 G5 with three sata disk. For You interested in details here is a dmesg. Box setup wen’t smooth but disk operations performance was very low. Copy big file wrom disk to disk was around 6Mb/sec, fetching src from cvs stops from time to time for a while. To show how slow this is look how long take inserting backup of this blog to mysql again:

Yup, 20 minutes and sql file was 85 Mb.

After checking dkctl against disks, I found (with help of morr) that write cache is disabled.

After enabling…

… performance went to satisfying level. Copying is now about 40Mb/sec and restoring database above in less than minute.

Unfortunettly saving this settings is not possible for now.

Maybe this have to be turned on in bios of server. For now i put cache enablers into /etc/rc.local.

System is NetBSD 5.0.1_PATCH i386 with FFSv2 and WAPBL.

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