* Autodetect problem w/ SCSI
@ 2004-06-01 18:39 Sandro Dentella
2004-06-01 20:45 ` M K
0 siblings, 1 reply; 5+ messages in thread
From: Sandro Dentella @ 2004-06-01 18:39 UTC (permalink / raw)
To: Linux Raid List
I made plenty of RAID1 systems w/ ide disk: OK.
Now I tried a SCSI system and I can't make the kernel recognize the partition
to make into an array. Of course partitions are 'fd': raid autodetect.
Kernel recognizes the scsi hw (aic7xxx compiled in), then starts
"md: Autodetecting RAID arrays" that will just fail to find the arrays.
If I start from a live CD, I can "mdadm -A /dev/md0 /dev/sda6 /dev/sdb6" and
the array starts and I can mount it.
Is there something peculiar of SCSI systems I'm just ignoring?
TYA
sandro
*:-)
I'm sorry to admit it's quite URGENT to me to get to a solution... this is a
replacement for a customer after 4 ide disks failure in 5 months...
--
Sandro Dentella *:-)
e-mail: sandro.dentella@tin.it
http://www.tksql.org TkSQL Home page - My GPL work
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Autodetect problem w/ SCSI
2004-06-01 18:39 Autodetect problem w/ SCSI Sandro Dentella
@ 2004-06-01 20:45 ` M K
2004-06-01 21:09 ` Sandro Dentella
2004-06-02 10:40 ` Sandro Dentella
0 siblings, 2 replies; 5+ messages in thread
From: M K @ 2004-06-01 20:45 UTC (permalink / raw)
To: Sandro Dentella, Linux Raid List
Can you send the exact command used to create the
array, the raidtabs or mdadm.conf file and the fdisk
-l listing of each drive thats part of the raid?
--- Sandro Dentella <sandro.dentella@tin.it> wrote:
>
>
> I made plenty of RAID1 systems w/ ide disk: OK.
> Now I tried a SCSI system and I can't make the
> kernel recognize the partition
> to make into an array. Of course partitions are
> 'fd': raid autodetect.
>
> Kernel recognizes the scsi hw (aic7xxx compiled in),
> then starts
> "md: Autodetecting RAID arrays" that will just fail
> to find the arrays.
>
> If I start from a live CD, I can "mdadm -A /dev/md0
> /dev/sda6 /dev/sdb6" and
> the array starts and I can mount it.
>
> Is there something peculiar of SCSI systems I'm just
> ignoring?
>
>
>
> TYA
>
> sandro
> *:-)
>
>
> I'm sorry to admit it's quite URGENT to me to get to
> a solution... this is a
> replacement for a customer after 4 ide disks failure
> in 5 months...
>
>
>
> --
> Sandro Dentella *:-)
> e-mail: sandro.dentella@tin.it
> http://www.tksql.org TkSQL Home
> page - My GPL work
> -
> To unsubscribe from this list: send the line
> "unsubscribe linux-raid" in
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Autodetect problem w/ SCSI
2004-06-01 20:45 ` M K
@ 2004-06-01 21:09 ` Sandro Dentella
2004-06-02 10:40 ` Sandro Dentella
1 sibling, 0 replies; 5+ messages in thread
From: Sandro Dentella @ 2004-06-01 21:09 UTC (permalink / raw)
To: M K; +Cc: Sandro Dentella, Linux Raid List
On Tue, Jun 01, 2004 at 01:45:16PM -0700, M K wrote:
> Can you send the exact command used to create the
> array, the raidtabs or mdadm.conf file and the fdisk
> -l listing of each drive thats part of the raid?
I used mdadm w/ (approxymantely, it's a script "mdadm --create $Md -l1 -n2 $part $part2")
mdadm --create /dev/md/0 -l1 -n2 /dev/scsi/host0/bus0/target0/lun0/part6 /dev/scsi/host0/bus0/target1/lun0/part6
From a live CD after modprobe aic7xxx and "mdadm -A /dev/md4 /dev/sda1
/dev/sdb1" and "mdadm -A /dev/md0 /dev/sda6 /dev/sdb6"
####################################################
fdisk -l /dev/sda
root@argo-cd root # fdisk -l /dev/sda
Disk /dev/sda: 255 heads, 63 sectors, 2231 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot Start End Blocks Id System
/dev/sda1 1 3 24066 fd Linux raid autodetect
/dev/sda2 4 2231 17896410 f Win95 Ext'd (LBA)
/dev/sda5 4 68 522081 fd Linux raid autodetect
/dev/sda6 69 323 2048256 fd Linux raid autodetect
/dev/sda7 324 2231 15325978+ fd Linux raid autodetect
root@argo-cd root # fdisk -l /dev/sdb
Disk /dev/sdb: 255 heads, 63 sectors, 2231 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 3 24066 fd Linux raid autodetect
/dev/sdb2 4 2231 17896410 f Win95 Ext'd (LBA)
/dev/sdb5 4 68 522081 fd Linux raid autodetect
/dev/sdb6 69 323 2048256 fd Linux raid autodetect
/dev/sdb7 324 2231 15325978+ fd Linux raid autodetect
####################################################
root@argo-cd root # cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 scsi/host0/bus0/target0/lun0/part6[0] scsi/host0/bus0/target1/lun0/part6[1]
2048192 blocks [2/2] [UU]
md4 : active raid1 scsi/host0/bus0/target0/lun0/part1[0] scsi/host0/bus0/target1/lun0/part1[1]
24000 blocks [2/2] [UU]
unused devices: <none>
####################################################
root@argo-cd root # mdadm -D /dev/md/0
/dev/md/0:
Version : 00.90.00
Creation Time : Tue Jun 1 19:02:24 2004
Raid Level : raid1
Array Size : 2048192 (2000.19 MiB 2097.35 MB)
Device Size : 2048192 (2000.19 MiB 2097.35 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2
Persistence : Superblock is persistent
Update Time : Tue Jun 1 23:00:22 2004
State : dirty, no-errors
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Number Major Minor RaidDevice State
0 8 6 0 active sync /dev/scsi/host0/bus0/target0/lun0/part6
1 8 22 1 active sync /dev/scsi/host0/bus0/target1/lun0/part6
UUID : 6f224ca0:92ecf8b5:bdf5d2b8:371b5bae
Events : 0.2
####################################################
root@argo-cd root # mount /dev/md0 /tmp/6
root@argo-cd root # mount /dev/md4 /tmp/6/boot/
root@argo-cd root # df
Filesystem 1k-blocks Used Available Use% Mounted on
rootfs 425408 425408 0 100% /
/dev/cdroms/cdrom0 425408 425408 0 100% /
tmpfs 6144 4160 1984 68% /etc
tmpfs 6144 1600 4544 27% /var
tmpfs 2048 12 2036 1% /var/tmp
/dev/md0 2048124 439932 1608192 22% /var/tmp/6
/dev/md4 23239 18278 3761 83% /var/tmp/6/boot
####################################################
Thanks again
sandro
*:-)
PS: I notice that preferred minor does not correspond w/ (my interpretation
of) real used minor. But I guess 'preferred' is not "compulsory"...
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: Autodetect problem w/ SCSI
2004-06-01 20:45 ` M K
2004-06-01 21:09 ` Sandro Dentella
@ 2004-06-02 10:40 ` Sandro Dentella
2004-06-02 12:02 ` Luca Berra
1 sibling, 1 reply; 5+ messages in thread
From: Sandro Dentella @ 2004-06-02 10:40 UTC (permalink / raw)
To: M K; +Cc: Sandro Dentella, Linux Raid List
I moved the array w/ on a different machine w/ a different controller (same
model:adaptec 2940 pro ultra scsi) but the behaviour is the same: the array
is not autodetected. The same kernel autodetects ide disks.
Please tell me: is there some setting, peculiar to SCSI autodetect, I'm
ignoring?
sandro
>
>
> On Tue, Jun 01, 2004 at 01:45:16PM -0700, M K wrote:
> > Can you send the exact command used to create the
> > array, the raidtabs or mdadm.conf file and the fdisk
> > -l listing of each drive thats part of the raid?
>
> I used mdadm w/ (approxymantely, it's a script "mdadm --create $Md -l1 -n2 $part $part2")
>
> mdadm --create /dev/md/0 -l1 -n2 /dev/scsi/host0/bus0/target0/lun0/part6 /dev/scsi/host0/bus0/target1/lun0/part6
>
> >From a live CD after modprobe aic7xxx and "mdadm -A /dev/md4 /dev/sda1
> /dev/sdb1" and "mdadm -A /dev/md0 /dev/sda6 /dev/sdb6"
>
> ####################################################
> fdisk -l /dev/sda
> root@argo-cd root # fdisk -l /dev/sda
>
> Disk /dev/sda: 255 heads, 63 sectors, 2231 cylinders
> Units = cylinders of 16065 * 512 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sda1 1 3 24066 fd Linux raid autodetect
> /dev/sda2 4 2231 17896410 f Win95 Ext'd (LBA)
> /dev/sda5 4 68 522081 fd Linux raid autodetect
> /dev/sda6 69 323 2048256 fd Linux raid autodetect
> /dev/sda7 324 2231 15325978+ fd Linux raid autodetect
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Autodetect problem w/ SCSI
2004-06-02 10:40 ` Sandro Dentella
@ 2004-06-02 12:02 ` Luca Berra
0 siblings, 0 replies; 5+ messages in thread
From: Luca Berra @ 2004-06-02 12:02 UTC (permalink / raw)
To: Linux Raid List; +Cc: M K
On Wed, Jun 02, 2004 at 12:40:17PM +0200, Sandro Dentella wrote:
>I moved the array w/ on a different machine w/ a different controller (same
>model:adaptec 2940 pro ultra scsi) but the behaviour is the same: the array
>is not autodetected. The same kernel autodetects ide disks.
>
>Please tell me: is there some setting, peculiar to SCSI autodetect, I'm
>ignoring?
it should not
for autodetect to work you would have to load the low-lever controller
driver and the sd driver before autodetect
can you show some evidence (eg. dmesg)
L.
--
Luca Berra -- bluca@comedia.it
Communication Media & Services S.r.l.
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^ permalink raw reply [flat|nested] 5+ messages in thread
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2004-06-01 18:39 Autodetect problem w/ SCSI Sandro Dentella
2004-06-01 20:45 ` M K
2004-06-01 21:09 ` Sandro Dentella
2004-06-02 10:40 ` Sandro Dentella
2004-06-02 12:02 ` Luca Berra
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