Intel Matrix RAID (ICH8R) rebuild?

[Krassimir Slavchev]

Bob Bishop wrote:
> Hi,
>
> On 21 May 2007, at 10:07, Krassimir Slavchev wrote:
>
>> Hello,
>>
>> I have problems rebuilding RAID1 array. The bios shows status 
>> 'Rebuild' and 'Volumes with "Rebuild" status will be rebuilt within 
>> the operating system'.
>> When I try to do 'atacontrol rebuild ar0':
>> atacontrol: ioctl(IOCATARAIDREBUILD): Device not configured
>
> From the output below, assuming the system is running OK, the RAID 
> doesn't need rebuilding. The BIOS is just confused about the state of 
> the array, it will probably still boot from it OK.
Yes, it boots OK but the RAID need rebuilding. This status is result of 
disconnecting the second disk, booting, create some files and then 
reconnect the second disk.
>
> [I've got a system with Intel ESB2 in the same state, anyone who knows 
> how to make the BIOS see sense (short of a full rebuild) please tell.]
>
>> I run 6.2-STABLE:
>>
>> dmesg:
>> ...
>> atapci1: <Intel ICH8 SATA300 controller> port 
>> 0xec00-0xec07,0xe880-0xe883,0xe800-0xe807,0xe480-0xe483,0xe400-0xe41f 
>> mem 0xfebff800-0xfebfffff irq 19 at device 31.2 on pci0
>> atapci1: AHCI Version 01.10 controller with 6 ports detected
>> ata5: <ATA channel 0> on atapci1
>> ata6: <ATA channel 1> on atapci1
>> ata7: <ATA channel 2> on atapci1
>> ata8: <ATA channel 3> on atapci1
>> ata9: <ATA channel 4> on atapci1
>> ata10: <ATA channel 5> on atapci1
>> ...
>> ad10: 152627MB <Seagate ST3160811AS 3.AAE> at ata5-master SATA300
>> ad12: 152627MB <Seagate ST3160811AS 3.AAE> at ata6-master SATA300
>> ar0: 152625MB <Intel MatrixRAID RAID1> status: READY
>> ar0: disk0 READY (master) using ad10 at ata5-master
>> ar0: disk1 READY (mirror) using ad12 at ata6-master
>>
>> pciconf -lv:
>> atapci1 at pci0:31:2:    class=0x010400 card=0x81ec1043 chip=0x28228086 
>> rev=0x02 hdr=0x00
>>    vendor     = 'Intel Corporation'
>>    class      = mass storage
>>    subclass   = RAID
>>
>> atacontrol status ar0:
>> ar0: ATA RAID1 subdisks: ad10 ad12 status: READY
>>
>> The motherboard is Asus P5-E.
>>
>>
>> How to rebuild my RAID?
>>
>> Thanks in advance
>>
>>
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>
>
>
> -- 
> Bob Bishop          +44 (0)118 940 1243
> rb at gid.co.uk fax +44 (0)118 940 1295
>
>
>
>
>