Hi *,
there's another system causing me headaches:
It is an Intel-Server with onboard SATA-RAID Controller
(Adaptec Firmware [1]). The two Seagate Barracuda SATA Drives[2] are
configured as RAID1(mirror). The system worked fine, for example cvsup,
bonnie++, make world and so on worked for me for some weeks.
Since I've installed the server in our housing the following happened
just an hour after leaving it:
[...]
Jan 7 12:11:07 top kernel: ar0: WARNING - mirror protection lost. RAID1 array
in DEGRADED mode
Jan 7 12:11:07 top kernel: ar0: writing of Adaptec HostRAID metadata is NOT
supported yet
Jan 7 12:11:07 top kernel: subdisk4: detached
Jan 7 12:11:07 top kernel: ar0: writing of Adaptec HostRAID metadata is NOT
supported yet
Jan 7 12:11:07 top last message repeated 22 times
Jan 7 12:11:07 top kernel: ad4: detached
Jan 7 12:11:07 top kernel: unknown: TIMEOUT - WRITE_DMA retrying (1 retry
left) LBA=18390271
Jan 7 12:11:07 top kernel: unknown: timeout waiting to issue command
Jan 7 12:11:07 top kernel: unknown: error issueing WRITE_DMA command
Jan 7 12:11:07 top kernel: ar0: writing of Adaptec HostRAID metadata is NOT
supported yet
[...]
So Murphy is as redundand as my RAID was configured, he crashed the second disk
(ad6) while running a backup to the external USB-Storage, same things:
TIMEOUT - WRITE_DMA retrying (1 retry left) etc
Few hours later back in the data center the system was at the manual
fsck, the RAID was "optimal" (since FreeBSD was not able to update the
meta-information on the controller), everything was messed up
(out-of-sync, ufs-panics, ... )
I guess the RAID-controller is not fully supported by FreeBSD and the
DMA-Timeouts caused the disks to crash, which damaged the RAID (no
metadata written).
So I guess will need another SATA-RAID-Controller (PCI).
Which SATA-RAID-controller works "rock solid" with 6.0-RELEASE?
Any other solutions? Known issues? Patches? Ideas?
TIA
Regards
Raphael Becker
Hardware is
atapci1: <Intel 6300ESB SATA150 controller> port
0xe400-0xe407,0xe000-0xe003,0xdc00-0xdc07,0xd800-0xd803,0xd400-0xd40f irq 18 at
device 31.2 on pci0
atapci1: failed to enable memory mapping! <-- W*F !?!?
[...]
ad4: 190782MB <Seagate ST3200826AS 3.03> at ata2-master SATA150
ad6: 190782MB <Seagate ST3200826AS 3.03> at ata3-master SATA150
ar0: 190782MB <Adaptec HostRAID RAID1> status: READY
ar0: disk0 READY (master) using ad4 at ata2-master
ar0: disk1 READY (mirror) using ad6 at ata3-master
[...]
[EMAIL PROTECTED]:31:2: class=0x01048f card=0x34308086 chip=0x25b08086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '6300ESB Serial ATA Controller (RAID mode)'
class = mass storage
subclass = RAID
[...]
See dmesg.boot[3] and pciconf[4] for more details.
Links & Images:
[1] http://rabe.uugrn.org/uugrn/bilder/top/2006-01-06_18-30-28_001.jpg
[2] http://rabe.uugrn.org/uugrn/bilder/top/2006-01-06_18-21-43_001.jpg
[3] http://rabe.uugrn.org/FreeBSD/top.uugrn.org/dmesg.boot
[4] http://rabe.uugrn.org/FreeBSD/top.uugrn.org/pciconf-vvl.txt
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