megaide support for 4.2

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On Thu, 2005-12-29 at 14:14 +0100, Kris Buytaert wrote:
> 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@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 .
> 

That would be very strange....

what does this show:

fdisk -l /dev/hdd

(is it full size?)

> 
> Anyone got a clue .. ?
> 

There is improved megaraid support for the new kernel here from
upstream:

http://people.redhat.com/~jbaron/rhel4/

You might give that a try.

> 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
> > 
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