Hi, 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). This will make the adapter aware of for example new LUNs that have been added. You can then use the rescan-scsi-bus.sh command to rescan your bus and make the changes known to the OS. After that just do a resize of the fs on your disk or add them to the LVM or something similar. Should work like a charm. Cheers, Bas > I did the same with HP MSA in the past, but without dm involved. > > You can use "blockdev --rereadpt <blockdevice>" to make the the kernel > recognise the new disk size (geometery). The nasty thing is that you > have to stop all I/O to the blocdevice. > > Roland Mieslinger > > > -----Original Message----- > > From: dm-devel-bounces redhat com > > [mailto:dm-devel-bounces redhat com] On Behalf Of Alexander Benaguev > > Sent: Mittwoch, 4. Juli 2007 19:17 > > To: dm-devel redhat com > > Subject: online disk resizing > > > > hi, list > > > > I have fc-based SAN which has ability to resizing logical > > disks online (IBM DS4000). is this a method tell about > > resizing to host system (centOS 5) without reboot or echo > > "scsi remove(add)-single-device 0 1 2 3"? I use multipath if > > this matters. will apprecate any help > > > > alexander > > > > -- > > dm-devel mailing list > > dm-devel redhat com > > https://www.redhat.com/mailman/listinfo/dm-devel > > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
