poweredge 1800, RHEL3 =(, hot add scsi

Fri Jul 27 02:53:48 CDT 2007

Hi,

You can download a tool from Qlogic to do this from their website at http://support.qlogic.com/support/os_detail.asp?productid=253&osid=65#Management_Tools . It's called "Dynamic Target & LUN discovery"

Basically it's a small shell script that does all the reconfiguration for you. I have used it on a PE2850 with dual qlogic2340 cards attached to a clariion san, and it worked very well.

If you use EMC PowerPath you have to do a "powermt config" to create the associated /dev/emcpowerX pseudo-devices.

Cheers,

Robert

> -----Message d'origine-----
> De : linux-poweredge-bounces at dell.com 
> [mailto:linux-poweredge-bounces at dell.com] De la part de Joe Vieira
> Envoyé : jeudi, 26. juillet 2007 19:46
> À : linux-poweredge at dell.com
> Objet : poweredge 1800, RHEL3 =(, hot add scsi
> 
> Hey,
>    
>     So, I've got RHEL3u9 (I know wicked old) running on an pe1800, it
> has a qlogic2300 card, when i configure and present a lun from our
> clarion to it, and attempt to hot add the disks,
> 
> echo "scsi-qlascan" >> /proc/scsi/qla2300/1
> dmesg shows the scan, then if i cat /proc/scsi/qla2300/1, i 
> see the lun
> ( 0:2 )
> so next i echo "scsi add-single-device 1 0 0 2" >> /proc/scsi/scsi
> dmesg shows
> 
> scsi singledevice 1 0 0 2
> blk: queue f5661418, I/O limit 4294967295Mb (mask 0xffffffffffffffff)
> 
> clearly the disk doesn't show up in /proc/scsi/scsi, anyone 
> have an idea?
> 
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