Tiago - The OpenSuSE 10.3 RC2 Livecd has way too many issues to even begin trying to debug dmraid. I was unable to get it to boot properly on any of our ICH9 platforms. The KIWI image loader manages to loose CD-ROM drives that are attached to the system via SATA or USB. It errors out with "Failed to detect CD drive !" Our platforms lack any PATA ports... So I was unable to test with an old PATA cd-rom. I'll see if I can get the 10.3 RC2 livecd to boot from PXE, but I'm very doubtful that it will work. I would recommend using RC1 if you have to use OpenSuSE 10.3. - Eric >-----Original Message----- >From: ataraid-list-bounces@xxxxxxxxxx [mailto:ataraid-list- >bounces@xxxxxxxxxx] On Behalf Of Tiago Freitas >Sent: Friday, September 28, 2007 4:39 PM >To: Fang, Ying >Cc: ATARAID (eg, Promise Fasttrak, Highpoint 370) related discussions; >heinzm@xxxxxxxxxx >Subject: Re: isw device for volume broken after opensuse livecd boot > >Thanks that's what I originally thought. > >I have now confirmed the bug in the opensuse 10.3 RC2 livecd / dmraid >or device-mapper / OROM. > >I deleted the RAID0 volume, disconnected the third drive that wasn't >part of the raid and chose one of the hitachis for RAID1 rebuild. >Then I created a new RAID0 volume, so the raid0 was online and raid1 >degraded. > >I then booted the opensuse livecd and just entered a root terminal and >typed "dmraid -ay". It said that the RAID0 was broken. > >I rebooted and OROM said that the second raid member was offline, so >RAID0 failed and RAID1 degraded. >So just typing "dmraid -ay' makes OROM think one or more members are >offline!! I think only one got offline because the raid1 was degraded, >on the first time when both were online, after the "dmraid -ay" both >became offline. > >Then I disconnected the sata port of one of the disks, and it said >raid0 and raid1 failed. Finally I reconnected all disks and both were >recognized, raid0 became online again. > >So after all it was not bad luck or bad connectors! This is a big bug >in both dmraid or device-mapper, and OROM. > >First of all, the metadata should not indicate that a member is >offline, that should be a temporarily disconnected member. > >You can easily reproduce this by taking the following steps: > >Get a P35 motherboard with ICH9R. >Create a RAID0 volume with two disks (in this case two Hitachi 7K160). >Create a RAID1 volume. >Boot OpenSuse 10.3RC2 livecd. Open a terminal, type "su" and then "dmraid - >ay" >Reboot and see that at least one of the disks is an offline member, >and raid1 fails. > > >On 9/28/07, Fang, Ying <ying.fang@xxxxxxxxx> wrote: >> Sorry, Tiago. I misread your email regarding the two volumes: RAID0 and >> RAID0:1. >> >> In the following messages: >> >> "Port 1 .. Member disk(0,1)" means that the hard drive attached to port >> 0 (scsi address: 1:0:0:0) is a member of two RAID arrays (RAID0 and >> RAID1) which are defined as RAID id 0 and 1 respetively. >> >> But port 0(scsi address 0:0:0:0) has a hard drive that has a RAID >> configuration including the same names of the RAID arrays. >> >> Because the metadata got messed up, OROM couldn't determine that the >> above two hard drives were belong to the same group of disks. In order >> to differentiate the names of the RAID volumes from two hard drives, :1 >> was added in. >> >> >>> >0 RAID0:1 80Gb Failed >> >>> >1 RAID1:1 109.0Gb Degraded >> >>> >2 RAID0 80Gb Failed >> >>> >3 RAID1 109.0Gb Degraded >> >>> > >> >>> >Port >> >>> >0 Hitachi 149.1GB Member Disk(0,1) >> >>> >1 Hitachi 149.1GB Member Disk(2,3) >> >> Thanks Eric for pointing out that the OROM display screen doesn't >> include the partition information. >> >> I hope that will help you understand those magic numbers. If you have >> any questions, let me know. >> >> Ying >> >-----Original Message----- >> >From: Fang, Ying >> >Sent: Thursday, September 27, 2007 4:07 PM >> >To: Tiago Freitas >> >Cc: ATARAID (eg, Promise Fasttrak, Highpoint 370) related discussions >> >Subject: RE: isw device for volume broken after opensuse livecd boot >> > >> >Are you talking about RAID1 and RAID1:1? The first is the RAID device >> and >> >the latter is the first partition in that RAID device. If you have more >> >than one partition there, you'll get RAID1:2 and so on. >> > >> >Ying >> > >_______________________________________________ >Ataraid-list mailing list >Ataraid-list@xxxxxxxxxx >https://www.redhat.com/mailman/listinfo/ataraid-list _______________________________________________ Ataraid-list mailing list Ataraid-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ataraid-list
