[CentOS] megaide support for 4.2

Thu Dec 29 15:36:11 UTC 2005
Rob Hall <robslists at digitalmedia.newsquest.co.uk>

On Thursday 29 December 2005 13:14, Kris Buytaert wrote:

If you're using DMRaid you shouldn't be accessing /dev/hd anything. dmraid -ay 
activates the raid set and a device should be created under /dev/mapper/. 
Please note it's a while since I used dmraid but that's how it used to work 
IIRC.

> On Thu, 2005-12-29 at 12:33 +0100, Kris Buytaert wrote:
> > In 2.4 there used to be a megaide driver for certain ata raid
> > controllers.
>
> Replyhing to myselve.
>
> It seems you have to use dmraid
>
> [root at cnode1 init.d]# dmraid -s
> *** Active Set
> name   : lsi_cdhajaiciia
> size   : 78165359
> stride : 128
> type   : stripe
> status : ok
> subsets: 0
> devs   : 1
> spares : 0
> *** Active Set
> name   : lsi_cdhajaiciib
> size   : 78165359
> stride : 128
> type   : stripe
> status : ok
> subsets: 0
> devs   : 1
> spares : 0
> *** Active Set
> name   : lsi_cdhajaiciic
> size   : 78165359
> stride : 128
> type   : stripe
> status : ok
> subsets: 0
> devs   : 1
> spares : 0
> *** Active Set
> name   : lsi_cdhajaiciid
> size   : 78165359
> stride : 128
> type   : stripe
> status : ok
> subsets: 0
> devs   : 1
> spares : 0
>
>
> show the devices but still I can put an ext3 filesystem on my /dev/hdd1
> but I can't mount it .
>
>
> Anyone got a clue .. ?
>
> greetz
>
> Kris
>
> > In 2.6 I can't access more than my /dev/hda , I can see my other 4, I
> > can create filesystems on them, but I can't mount them
> >
> >
> > Anyone knows how to use these on a 2.6 kernel (Centos 4.2)
> >
> > greetings
> >
> > Kris
> >
> >
> > 00:02.0 RAID bus controller: Silicon Image, Inc. SiI 0649 Ultra ATA/100
> > PCI to ATA Host Controller (rev 02)
> >         Subsystem: Compaq Computer Corporation Integrated Ultra ATA-100
> > IDE RAID Controller
> >         Flags: bus master, medium devsel, latency 64, IRQ 5
> >         I/O ports at 2010 [size=8]
> >         I/O ports at 2018 [size=4]
> >         I/O ports at 2020 [size=8]
> >         I/O ports at 2028 [size=4]
> >         I/O ports at 2030 [size=16]
> >         Capabilities: [60] Power Management version 2

-- 
Best regards,
 Rob Hall - Red Hat Certified Engineer
 Technical Team Leader        Phone : 01254 691171
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 Rob Hall - Red Hat Certified Engineer
 Technical Team Leader
 Newsquest Digital Media