fdisk unable to read /dev/sdb

Martha Flugstad MARTHAF at exchange.astate.edu
Fri May 7 14:54:00 CDT 2004


Hello,
    A Dell technician helped me set up the RAID array.  We set it up as RAID 10 and as far as I know, it is happy.  We ran the Initialize command on the disk after it was set up.  What should I look for to make sure that it is valid and operational?  Thanks again.

Martha

-----Original Message-----
From: Bill Rankin [mailto:wrankin at ee.duke.edu]
Sent: Friday, May 07, 2004 2:14 PM
To: Martha Flugstad
Cc: linux-poweredge at dell.com
Subject: RE: fdisk unable to read /dev/sdb


Hi Martha,


Well, it looks like you have a Perc3 RAID card in there.  Have you gone
in through the BIOS configuration (or dellmgr) for the Perc3 and
verified that the RAID setup is valid and operational?

If the RAID setup isn't happy, then is won't give you a partition table.

-bill

On Fri, 2004-05-07 at 15:01, Martha Flugstad wrote:
> Yes, I have looked at dmesg and at /proc/scsi/scsi.  The system sees
> the drive.  Here is the output from 'cat /proc/scsi/scsi:
> 
> Attached devices:
> Host: scsi0 Channel: 00 Id: 00 Lun: 00
>   Vendor: DELL     Model: Virtual Disk 0   Rev: V1.0
>   Type:   Direct-Access                    ANSI SCSI revision: 02
> Host: scsi1 Channel: 00 Id: 00 Lun: 00
>   Vendor: MegaRAID Model: LD 0 RAID0 1119G Rev: 1.80
>   Type:   Direct-Access                    ANSI SCSI revision: 02
> Host: scsi1 Channel: 04 Id: 06 Lun: 00
>   Vendor: DELL     Model: PERC 3/DC        Rev: 1.80
>   Type:   Processor                        ANSI SCSI revision: 02
> Host: scsi1 Channel: 04 Id: 15 Lun: 00
>   Vendor: DELL     Model: PV22XS           Rev: E.14
>   Type:   Processor                        ANSI SCSI revision: 03
> Host: scsi2 Channel: 00 Id: 00 Lun: 00
>   Vendor: HL-DT-ST Model: RW/DVD GCC-4240N Rev: E112
>   Type:   CD-ROM                           ANSI SCSI revision: 02
> 
> It's the scsi1 that I am trying to partition.  Thanks for your help.
> 
> Martha
> 
> -----Original Message-----
> From: Bill Rankin [mailto:wrankin at ee.duke.edu]
> Sent: Friday, May 07, 2004 1:51 PM
> To: linux-poweredge at dell.com
> Subject: Re: fdisk unable to read /dev/sdb
> 
> 
> 
> > Is /dev/sdb showing up in the boot messages.  You can check by running:
> >  
> > dmesg | less
> >  
> > and looking for sdb.
> 
> and cross check with the output of 'cat /proc/scsi/scsi' 
> 
> -b
> 
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-- 
bill rankin, ph.d. ........ director, cluster and grid technology group
wrankin at ee.duke.edu .......................... center for computational
duke university ...................... science engineering and medicine
http://www.ee.duke.edu/~wrankin .............. http://www.csem.duke.edu





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