From: Rainer Duffner (rainer_at_ultra-secure.de)
Date: Thu May 24 2007 - 17:01:19 CEST
Message-ID: <4655A8BF.4000707@ultra-secure.de> Date: Thu, 24 May 2007 17:01:19 +0200 From: Rainer Duffner <rainer@ultra-secure.de> Subject: Re: [suse-sles-e] present new lun --
Peter Van Lone wrote:
> When I snapshot a lun from an eva-attached sles box, and then present
> the lun to another sles box ... I have to reboot the sucker, to get it
> to see it.
>
> That just does not seem right ... is there a command that can cause
> LVM or EVMS to "refresh" it's device view?
>
>
AFAIK:
http://www.garloff.de/kurt/linux/scsidev/
http://www.garloff.de/kurt/linux/rescan-scsi-bus.sh
This whole process is still suboptimal, IMO.
E.g., with Windows, you can use diskpart.exe to enlarge a partition
on-the-fly, without any volume manager.
In Linux, you have to use LVM (which brings other advantages, admittedly).
Also, the whole scsi-system would benefit from a serious
documentation-hackathlon.
The fact that you've got to "cat here" and "echo there" into procfs and
sysfs has "ugly hack" written all over it (at least, it seems to me).
cheers,
Rainer
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