[CentOS] How to force iscsi to see the new LUN size

Pasi Kärkkäinen pasik at iki.fi
Wed Jan 20 12:13:14 UTC 2010


On Tue, Jan 19, 2010 at 02:53:18PM -0800, Peter Blajev wrote:
> Pasi Kärkkäinen wrote:
> > On Fri, Jan 15, 2010 at 05:34:47PM -0800, Peter Blajev wrote:
> >> Hi,
> >>
> >> I increased the size of one of the LUNs and on CentOS 5.4 if I restart 
> >> iscsi (`service iscsi restart`) I'll see the the new size but this will 
> >> disconnect all other LUNs.
> >>
> >> I'm hoping that there is isciadm or some other command that will force 
> >> iscsi to rediscover the LUNs but I can't seem to be able to come up with 
> >> one.
> >>
> >> Resize2fs says that there is nothing to be done. I'm not using LVM.
> >>
> >> Any ideas?
> >>
> > 
> > Try: iscsiadm -m node -R
> > It should work with CentOS 5.3 and newer.
> > 
> > Also you might be interested of this:
> > http://pasik.reaktio.net/rhel5-online-iscsi-resize-test.txt
> > 
> > -- Pasi
> > 
> > _______________________________________________
> > CentOS mailing list
> > CentOS at centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> 
> Thank you to all that replied.
> 
> I studied and followed the document Pasi provided:
> http://pasik.reaktio.net/rhel5-online-iscsi-resize-test.txt
> 
> Great step-by-step instructions, right on the point. It worked for me.
> 
> Thanks again.
> 

No problems. Nice to see it was of some help for you :)

-- Pasi



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