New to RAID/Linux - PE2650, Redhat 7.3

Brian K. Jones jonesy at CS.Princeton.EDU
Mon Aug 5 11:17:01 CDT 2002


OK!  I'll try this and see w'sup!

On Mon, 2002-08-05 at 12:12, Steve_Boley at dell.com wrote:
> You need to go into the system bios and see if the primary scsi is set to
> scsi or raid.  If you can't change to raid then you don't have the raid
> option enabled on the motherboard via a chip and dimm or something is not
> functioning correctly.  You don't have an aacraid controller is why it's not
> showing in modules.conf and there would be no way to boot to Linux if it
> wasn't there and you actually had embedded raid.  Once you change from scsi
> to raid in bios you will have to create raid array and reinstall the
> operating system.
> Steve
> 
> -----Original Message-----
> From: Brian K. Jones [mailto:jonesy at CS.Princeton.EDU]
> Sent: Monday, August 05, 2002 10:07 AM
> To: patrik.koch at philips.com
> Cc: linux-poweredge at exchange.dell.com
> Subject: Re: New to RAID/Linux - PE2650, Redhat 7.3
> 
> 
> ~~~~~~~ Resending due to error ~~~~~~~
> 
> Thanks, I'll keep that stuff in mind as well, though I'm even more
> confused after opening this thing up, maybe someone can tell me what the
> docs don't even make mention of (PLEASE correct me if I'm wrong).
> 
> There are two disks in this 2650 as it came from the factory. 
> Obviously, they plug directly into the FRONT of the box.  However, what
> appears to be the RAID card has nothing plugged into it, and it's all
> the way in the BACK of the box (it says Adaptec 39160/Dell on it, and
> the chip right near the disks says Adaptec 7899).  How the heck do you
> connect the drives in front to the card in back?  
> 
> Additionally, when I boot, CTRL-A only gets me to the SCSI-Select
> menus.  There's no prompt to press ctrl-m or enter the bios for the RAID
> card.
> 
> Is this process documented somewhere? 
> 
> On Mon, 2002-08-05 at 10:05, patrik.koch at philips.com wrote:
> > Hi Brian,
> > 
> > Reboot the system and look at the firmware messages.
> > There is something reported like
> > 
> > "PERC 3/Di, BIOS v2.7-0..."
> > " ...container ..."
> > "... press CTRL-A"
> > 
> > press CTRL-A, there you can configure the RAIDs.
> > 
> > When linux is up and running there is also a monitoring application
> "afacli" available.
> > Go to the Dell support site, look for "PERC linux", then you find
> > -> PERC/Di management application aacraid-util-rh73-i386.tar.gz
> > Download the file, install it with "rpm -ihv afaapps-2.6-1.i386.rpm"
> > 
> > After installation call "afacli" -> controller list -> open afa0 ->
> diagnotic dump text...
> > 
> > This tool is not very handy :-(
> > 
> > Hope taht helps,
> > 
> > Patrik
> > 
> > 
> > 
> > 
> >
> 
> >                       "Brian K. Jones"
> 
> >                       <jonesy at CS.Princeto             To:  Seth Mos
> <knuffie at xs4all.nl>                                                   
> >                       n.EDU>                          cc:
> linux-poweredge at dell.com
> 
> >                       Sent by:                         (bcc: Patrik
> Koch/ACN/RESEARCH/PHILIPS)                                            
> >                       linux-poweredge-adm             Subject:   Re: New
> to RAID/Linux - PE2650, Redhat 7.3                               
> >                       in at dell.com
> 
> >                                                       Classification:
> 
> >
> 
> >                       08/05/2002 03:37 PM
> 
> >
> 
> >
> 
> > 
> > 
> > 
> > 
> > OK, I think I can figure this stuff out.  I'll likely build it into the
> > kernel as well, since there's no practical reason I can think of to make
> > aacraid a module (or the aic7xxx driver).
> > 
> > My question *now* is: How do I control the RAID level?  How do I know
> > how the driver is treating the disks?  How do I know if it's being
> > mirrored? etc. etc.
> > 
> > Thanks again
> > 
> > On Mon, 2002-08-05 at 09:22, Seth Mos wrote:
> > > At 09:09 5-8-2002 -0400, Brian K. Jones wrote:
> > > >Thanks for the reply.  Sorry for the miscommunication - RAID 1
> > > >(mirroring) is what I want to do.  The question now is once I have my
> > > >root disk set up the way I want it, what's the device I'm aliasing in
> > > >modules.conf?  I don't remember ever putting a module into that file
> > > >just by itself on a line, but that appears to be what you're
> > > >suggesting.
> > >
> > > This from one of my PE2450 servers (perc2/dc controller)
> > >
> > > [seth at lsintra seth]$ cat /etc/modules.conf
> > > alias scsi_hostadapter aic7xxx
> > > alias scsi_hostadapter1 megaraid
> > > alias eth0 eepro100
> > > alias parport_lowlevel parport_pc
> > >
> > > So in your case it should look like this.
> > > alias scsi_hostadapter aacraid
> > >
> > > Then rebuild your initrd image.
> > > mkinitrd (see help)
> > >
> > > I always compile the scsi adapters that I need to access the root
> > > filesystem into the kernel so I don't need to make initial ramdisk
> images.
> > >
> > > It also makes sure I can reach the root fs when something goes wrong.
> > >
> > > Cheers
> > >
> > > --
> > > Seth
> > > It might just be your lucky day, if you only knew.
> > >
> > > _______________________________________________
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> > --
> > 
> > Brian K. Jones
> > System Administrator
> > Dept. of Computer Science, Princeton University
> > jonesy at cs.princeton.edu
> > Voice: (609) 258-6080
> > 
> > _______________________________________________
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> > 
> > 
> > 
> -- 
> 
> Brian K. Jones
> System Administrator
> Dept. of Computer Science, Princeton University
> jonesy at cs.princeton.edu
> Voice: (609) 258-6080
> 
> _______________________________________________
> Linux-PowerEdge mailing list
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-- 

Brian K. Jones
System Administrator
Dept. of Computer Science, Princeton University
jonesy at cs.princeton.edu
Voice: (609) 258-6080




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