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Date: Tue, 23 Sep 2003 09:12:57 +0000
From: Igor Tseglevsky <tsypa@ipnet.ru>
To: freebsd-hackers@freebsd.org
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Subject: raid (atacontrol) problems
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Strange problems with RAID. If disks are located on different controllers
after rebooting one of disks disappears. Disks on one controller coexist in
RAID normally.

Any ideas? Please, help!


cf# atacontrol status 0
atacontrol: ioctl(ATARAIDSTATUS): Device not configured
cf# atacontrol create mirror ad1 ad4
ar0 created
cf# atacontrol status 0
ar0: ATA RAID1 subdisks: ad1 ad4 status: READY
cf# fastboot

cf# atacontrol status 0
ar0: ATA RAID1 subdisks: ad1 DOWN status: DEGRADED

In dmesg:

ad0: 76319MB <ST380011A> [155061/16/63] at ata0-master UDMA66
ad1: 76319MB <ST380011A> [155061/16/63] at ata0-slave UDMA66
ad2: DMA limited to UDMA33, non-ATA66 cable or device
ad2: 76319MB <ST380011A> [155061/16/63] at ata1-master UDMA33
ad4: 76319MB <ST380011A> [155061/16/63] at ata2-master UDMA100
ad6: 76319MB <ST380011A> [155061/16/63] at ata3-master UDMA100
ar0: WARNING - mirror lost
ar0: 76319MB <ATA RAID1 array> [9729/255/63] status: DEGRADED subdisks:
 disk0 READY on ad1 at ata0-slave
 disk1 DOWN no device found for this disk

Similarly for ad2 and ad6.

Other situation with same controller:

cf# atacontrol status 0
atacontrol: ioctl(ATARAIDSTATUS): Device not configured
cf# atacontrol create mirror ad1 ad2
ar0 created
cf# atacontrol status 0
ar0: ATA RAID1 subdisks: ad1 ad2 status: READY
cf# fastboot

cf# atacontrol status 0
ar0: ATA RAID1 subdisks: ad1 ad2 status: READY

Similarly for ad4 and ad6.

cf# uname -a
FreeBSD cf 5.1-RELEASE-p5 FreeBSD 5.1-RELEASE-p5 #0: Mon Sep 22 07:46:00 GMT 2003     tsypa@cf:/usr/obj/usr/src/sys/GENERIC  i386
cf# 

Some dmesg about controllers:

atapci0: <Promise PDC20269 UDMA133 controller> port 0xdf90-0xdf9f,0xdfe0-0xdfe3,0xdfa8-0xdfaf,0xdfe4-0xdfe7,0xdff0-0xdff7 mem 0xfeafc000-0xfeafffff irq 11 at device 8.0 on pci2
ata2: at 0xdff0 on atapci0
ata3: at 0xdfa8 on atapci0

atapci1: <Intel ICH UDMA66 controller> port 0xffa0-0xffaf at device 31.1 on pci0
ata0: at 0x1f0 irq 14 on atapci1
ata1: at 0x170 irq 15 on atapci1

Igor.