Re: FC 3 and Promise Fastrak 100 TX2 raid?

From: Rincewind (rinso_at_unseen.edu)
Date: 02/01/05 

Date: Mon, 31 Jan 2005 23:29:41 GMT

On Mon, 31 Jan 2005 19:13:22 +0000, Rincewind mumbled something like this:

> I have just upgraded my RH 9 system to FC 3. Almost everything went well -
> I am using the system now.
>
> On the old system(RH 9, kernel 2.4), I had /home on its own partition on a
> RAID 0 array connected to a Promise Fastrak 100 TX2. The following
> commands in /etc/rc.d/rc.local mounted the partition:
>
> /sbin/modprobe ataraid
> /sbin/modprobe pdcraid
> mount -t ext3 /dev/ataraid/d0p8 /home

I didn't get a reply, but some research turned up the changes from RH 9 to
FC 3. Here is what I found for the benefit of others...

I have discovered that ataraid in kernel 2.6.x is now handled by dmraid
and device-mapper. I have installed dmraid and it sees my RAID array:

[root@eden ~]# dmraid -r
/dev/hde: pdc, "pdc_cebgdfgbh", striped, ok, 80418176 sectors, data@ 0
/dev/hdg: pdc, "pdc_cebgdfgbh", striped, ok, 80418176 sectors, data@ 0

I am also able to mount the relevant partition, although it shows an ERROR
when activating:

[root@eden ~]# dmraid -ay
ERROR: dos: seeking device "/dev/mapper/pdc_cebgdfgbh" to 873003500032
ERROR: adding to RAID set
[root@eden ~]# mount -t ext3 /dev/mapper/pdc_cebgdfgbh8 /home
[root@eden ~]# ls /home
andy dave david httpd lee netlogon
etc........

Rinso 

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