Detecting New SAN LUN in RHEL5

[Mark Haney]

Young, Mike wrote:
> I'd like to rescan the fiber card rather than rebooting.  Since RHEL5 doesn't require you to load the drivers of the vendor, none of the tools (lun_scan, et al) are installed either.  There must be a way of detecting new LUNs without rebooting - everything else has been pretty automatic so far (card detection, activation, etc).
>
>  -----Original Message-----
> From: 	redhat-list-bounces at redhat.com [mailto:redhat-list-bounces at redhat.com]  On Behalf Of Mark Haney
> Sent:	Monday, April 16, 2007 5:32 PM
> To:	General Red Hat Linux discussion list
> Subject:	Re: Detecting New SAN LUN in RHEL5
>
> Young, Mike wrote:
>   
>> Hello,
>>
>> What's the method for detecting newly allocated SAN LUNs in RHEL5?  I supposedly have a LUN allocated, but I can't see it in /dev/cciss or /dev/sd*.
>>
>> Thanks,
>> Mike.
>>
>>   
>>     
> Did you rescan the SCSI/FC controller?  Or reboot the machine?
>
>
>   
Rescanning the card (as mentioned in a previous post) is pretty much 
card specific.  And in most cases it's an echo command to a /proc 
location or something similar, so those tools won't be needed.


-- 
Mark Haney
Sr. Systems Administrator	
ERC Broadband