At 18:26 +0200 3/9/2003, Ruben de Groot wrote:
On Wed, Sep 03, 2003 at 10:45:05PM +1000, jesse reynolds typed:
Hi

> How do you tell which disk has problems in a hardware RAID1 array?
...

You can try this:

umount /dev/ar0
fsck -f -n /dev/ad4
fsck -f -n /dev/ad6

This way (hopefully) you'll be able to establish which one of the disks
in the array has developed problems. Then reboot and rebuild the array
from the other disk using the controllers firmware.

Thanks Ruben.


Unfortunately there are only these two disks in the machine, with /, /usr, /var, and swap all slices of ar0. Thus, I cannot unmount ar0!!!

Surely there must be a way of finding out which disk is being used and which is idle? Doesn't "degraded" mean that it's only using one of the two disks???

Thankyou

Jesse




Ruben

Cheers

Jesse

PS:

FreeBSD 4.6.2-RELEASE

 atapci1: <Promise ATA100 controller> port
 0xdc00-0xdc3f,0xe000-0xe003,0xe400-0xe407,0xe800-0xe803,0xec00-0xec07
 mem 0xdffe0000-0xdfffffff irq 11 at device 16.0 on pci0

 ar0: 76293MB <ATA RAID1 array> [9726/255/63] status: READY subdisks:
  0 READY ad4: 76319MB <ST380021A> [155061/16/63] at ata2-master UDMA100
  1 READY ad6: 76319MB <ST380021A> [155061/16/63] at ata3-master UDMA100


# atacontrol list ATA channel 0: Master: no device present Slave: no device present ATA channel 1: Master: acd0 <LG DVD-ROM DRD-8160B/1.01> ATA/ATAPI rev 0 Slave: no device present ATA channel 2: Master: ad4 <ST380021A/3.19> ATA/ATAPI rev 5 Slave: no device present ATA channel 3: Master: ad6 <ST380021A/3.19> ATA/ATAPI rev 5 Slave: no device present

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  ::: Jesse Reynolds +61 (0)414 669 790 ::: AIM - jessedreynolds :::
  ::: Virtual Artists Pty Ltd, Adelaide ::: http://www.va.com.au :::
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