Alexander Here is what I do (RHEL4u4) I use iscsi over a qlogic HBA but its basically the same.. still "scsi" to RH :-) Oh yea no partitions on my volumes either, It seems cleaner that way. 1. stop access to volume and unmount 2. resize your san volume 3. locate the scsi target number > cat /proc/scsi/qla4xxx/<controller> I find the volume Im interested in via our naming schema .. your milage my very with that. I now have my volume def in scsi terms .. ie 2 0 2 0 or <host> <channel> <scsi id> <lun> 4. remove and readd the scsi device > echo "scsi remove-single-device 2 0 2 0" > /proc/scsi/scsi > echo "scsi add-single-device 2 0 2 0" > /proc/scsi/scsi 6. at this point I have a new scsi device ie /dev/sdg or such which should reflect the new size via your dmesg ( i usually have a tail -f of /var/log/messages going :-) 7. next run my ext2online to get the FS in sync with the actual size of the volume 8. remount and re access the volume Hope that helps out some .. -- :wq! kevin.foote <div>On 7/5/07, Alexander Benaguev <<a href="mailto:zul@sigmatrans.ru">zul@sigmatrans.ru</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Raayman, Sebastian wrote: > this is also dependant on the HBA you are using. With a Qlogic adapter > you can simply send an: > > echo scsi-qlascan > > to your Qlogic adapter (for example under /proc/scsqi/qla2xxx) thanks for attention, guys Sebastian, yes, I use qlogic, but, you will laught, I have not /proc/scsqi/qla2xxx. googling around shows that: "as of RHEL4 U3 (and I'd imagine upstream <a href="http://kernel.org"> kernel.org</a> kernels) the 'scsi-qlascan' no longer works with the qla2xxx driver. The new method is: echo 1 > /sys/class/fc_host/host<ID>/issue_lip echo "- - -" > /sys/class/scsi_host/host<ID>/scan" but it does not work for me. I tried "echo 1 > /sys/devices/pci0000:00/0000:00:03.0/0000:04:00.0/0000:06:01.0/host1/rport-1:0-1/target1:0:1/1:0:1:2/rescan" too. so, it was much better: dmesg showed me disks with new capacity, but "fdisk -l" still showing old capacity;( any thoughts? alexander -- dm-devel mailing list <a href="mailto:dm-devel@redhat.com">dm-devel@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/dm-devel">https://www.redhat.com/mailman/listinfo/dm-devel </a> </blockquote></div>