RAID problems

[mmehrwald]

Hi,

I've got a problem with my onboard RAID. I have 4 HDD's and want to have a RAID 10. The configuration in the BIOS works fine. Now I try to install a Fedora 11. In the diskmanager their is only one of my 4 four disks with the name sda.
My board is a Gigabyte GA-MA780G-UD3H. Does anyone know how to get the RAID running or is the only chance to use software RAID?

Thanks,
Markus

[JEO]

Try booting a rescue or livecd and post the output of

su -
dmraid -r

[mmehrwald]

Here is the output from the livecd

[root@localhost ~]# dmraid -r
/dev/sdd: pdc, "pdc_bafbccaha-1", stripe, ok, 976639872 sectors, data@ 0
/dev/sdc: pdc, "pdc_bafbccaha-1", stripe, ok, 976639872 sectors, data@ 0
/dev/sdb: pdc, "pdc_bafbccaha-0", stripe, ok, 976639872 sectors, data@ 0
/dev/sda: pdc, "pdc_bafbccaha-0", stripe, ok, 976639872 sectors, data@ 0

For me this looks ok but anaconda seems to have a problem.

The installer from the livecd also has this problem.

[JEO]

That looks okay to me also. Could be yet another bug in anaconda. I have only used anaconda with raid 0 or raid 1 not raid 10. What do you see from?

ls /dev/mapper

dmraid -s -s

[mmehrwald]

[root@localhost ~]# ls /dev/mapper
control live-rw pdc_bafbccaha-0
live-osimg-min pdc_bafbccaha pdc_bafbccaha-1

[root@localhost ~]# dmraid -s -s
*** Active Superset
name : pdc_bafbccaha
size : 1953279744
stride : 128
type : raid10
status : ok
subsets: 2
devs : 4
spares : 0
--> Active Subset
name : pdc_bafbccaha-0
size : 1953279744
stride : 128
type : stripe
status : ok
subsets: 0
devs : 2
spares : 0
--> Active Subset
name : pdc_bafbccaha-1
size : 1953279744
stride : 128
type : stripe
status : ok
subsets: 0
devs : 2
spares : 0

again everything looks good for me.

[JEO]

Yes it does look okay. I have no idea why anaconda would show you /dev/sda it should show you /dev/mapper/pdc_bafbccaha which is your raid 10 array.

You might try dmraid -vvv -r and see if it is discovering any bad or leftover metadata on any of the drives also.

[mmehrwald]

[root@localhost ~]# dmraid -vvv -r
WARN: locking /var/lock/dmraid/.lock
NOTICE: /dev/sdd: asr discovering
NOTICE: /dev/sdd: ddf1 discovering
NOTICE: /dev/sdd: hpt37x discovering
NOTICE: /dev/sdd: hpt45x discovering
NOTICE: /dev/sdd: isw discovering
NOTICE: /dev/sdd: jmicron discovering
NOTICE: /dev/sdd: lsi discovering
NOTICE: /dev/sdd: nvidia discovering
NOTICE: /dev/sdd: pdc discovering
NOTICE: /dev/sdd: pdc metadata discovered
NOTICE: /dev/sdd: sil discovering
NOTICE: /dev/sdd: via discovering
NOTICE: /dev/sdc: asr discovering
NOTICE: /dev/sdc: ddf1 discovering
NOTICE: /dev/sdc: hpt37x discovering
NOTICE: /dev/sdc: hpt45x discovering
NOTICE: /dev/sdc: isw discovering
NOTICE: /dev/sdc: jmicron discovering
NOTICE: /dev/sdc: lsi discovering
NOTICE: /dev/sdc: nvidia discovering
NOTICE: /dev/sdc: pdc discovering
NOTICE: /dev/sdc: pdc metadata discovered
NOTICE: /dev/sdc: sil discovering
NOTICE: /dev/sdc: via discovering
NOTICE: /dev/sdb: asr discovering
NOTICE: /dev/sdb: ddf1 discovering
NOTICE: /dev/sdb: hpt37x discovering
NOTICE: /dev/sdb: hpt45x discovering
NOTICE: /dev/sdb: isw discovering
NOTICE: /dev/sdb: jmicron discovering
NOTICE: /dev/sdb: lsi discovering
NOTICE: /dev/sdb: nvidia discovering
NOTICE: /dev/sdb: pdc discovering
NOTICE: /dev/sdb: pdc metadata discovered
NOTICE: /dev/sdb: sil discovering
NOTICE: /dev/sdb: via discovering
NOTICE: /dev/sda: asr discovering
NOTICE: /dev/sda: ddf1 discovering
NOTICE: /dev/sda: hpt37x discovering
NOTICE: /dev/sda: hpt45x discovering
NOTICE: /dev/sda: isw discovering
NOTICE: /dev/sda: jmicron discovering
NOTICE: /dev/sda: lsi discovering
NOTICE: /dev/sda: nvidia discovering
NOTICE: /dev/sda: pdc discovering
NOTICE: /dev/sda: pdc metadata discovered
NOTICE: /dev/sda: sil discovering
NOTICE: /dev/sda: via discovering
INFO: RAID devices discovered:

/dev/sdd: pdc, "pdc_bafbccaha-1", stripe, ok, 976639872 sectors, data@ 0
/dev/sdc: pdc, "pdc_bafbccaha-1", stripe, ok, 976639872 sectors, data@ 0
/dev/sdb: pdc, "pdc_bafbccaha-0", stripe, ok, 976639872 sectors, data@ 0
/dev/sda: pdc, "pdc_bafbccaha-0", stripe, ok, 976639872 sectors, data@ 0
WARN: unlocking /var/lock/dmraid/.lock

and again looks good. i tried to start anaconda from the livecd now with option --dmraid and --nodmraid with the same result. also i am currently downloading f12 alpha. they changed something in mdraid. maybe this helps but actually i am not very optimistic anymore but we will see.

[JEO]

Well I know anaconda works with raid 0 or 1 but the big question is does it work with 10? My Promise Fasttrak 100 TX2 controllers don't have raid 10 in their BIOS just Span, 0 and 1 so I was never able to test it. So we should search for anaconda and raid 10 in bugzilla, or with google.