I was under the impression that the linux kernel refuses to detect changes to the physical device that the root file system is mounted from. I've always had to reboot to get the kernel to recognize new geometry on single physical device machines.
Patrick > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Tuesday, January 19, 2010 9:14 AM > To: [email protected]; [email protected] > Subject: RE: RAID expansion > > I once had a similar problem with SuSE I think. > I was successful using > > echo 1 > /sys/block/sdX/device/rescan > > But I think on RH it might even be possible to just use > > udevstart > > command to do the trick. > Let me know the results. > > Jens. > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Steve Thompson > Sent: 19 January 2010 14:48 > To: linux-poweredge-Lists > Subject: RAID expansion > > > CentOS 5.4 x86_64 OMSA 5.4 on a PE2900. > > I expanded a RAID-6 set by the addition of additional volumes > through OMSA. All physical disks were in local slots attached > to the same Perc 6/i (no MDx000). The entire disk /dev/sdX > (no partitions) was previously made into a single LVM volume > group, and remained active throughout this procedure. When > completed, "omreport storage vdisk" reported the new and > > correct size. The new size was not otherwise available to the kernel, > however: pvscan reported the old size, pvresize did not > resize, /sys/block/sdX/size contained the old size. A > pvresize resized the physical volume only after a reboot. > What's the trick to making this work without a reboot? I have > several RAID sets to resize, where rebooting is > > not an option. Thanks, > > Steve > > _______________________________________________ > Linux-PowerEdge mailing list > [email protected] > https://lists.us.dell.com/mailman/listinfo/linux-poweredge > Please read the FAQ at http://lists.us.dell.com/faq > > _______________________________________________ > Linux-PowerEdge mailing list > [email protected] > https://lists.us.dell.com/mailman/listinfo/linux-poweredge > Please read the FAQ at http://lists.us.dell.com/faq > > _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
