Hi,

> In our SAN (IBM DS4800), I can increase the size of a logical drive.
> However, I can't figure out how to make RHEL 5.1 see that the
> device has
> been enlarged.

Does 'sfdisk -R <device>' work? Reading previous posts I guess not in
combination with mp, but who knows ;)

Cheers,
Andre

>I've tried rescanning the SCSI hosts with
> commands like:
>
> echo "- - -" > /sys/class/scsi_host/host1/scan
> echo "- - -" > /sys/class/scsi_host/host2/scan
>
> (host 1 and 2 are the fibre channel HBAs connected to the san.)
>
> Neither "multipath -F" nor "partprobe /dev/sdi" help, either.
>
> I also tried (one line):
> for f in `find /sys/devices/pci0000:00/0000:00:04.0 -type f
> -name rescan`; do echo 1 > $f; done
>
> After this, /var/log/messages contained lines like:
> Feb 7 23:47:50 hostname kernel: SCSI device sdi: 293601280
> 512-byte hdwr sectors (150324 MB)
> Feb 7 23:47:50 hostname kernel: sdi: Write Protect is off
> Feb 7 23:47:50 hostname kernel: SCSI device sdi: drive
> cache: write back w/ FUA
>
> The above lines resulted in some optimism, however no matter what I
> do, the output of "multipath -l" and "fdisk -l ..." still shows the
> old capacity.
>
> The only thing which seems to work is a reboot, but this is not always
> an option.
>
> How can I make the operating system fully aware of the increased
> capacity of a device?
>
> --
> Regards,
> Troels Arvin <troels@(protected)>
> http://troels.arvin.dk/
>
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> rhelv5-list mailing list
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>
>


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