I found this old message: "On Tuesday June 1, maheshext3@xxxxxxxxx wrote: > > --- Neil Brown <neilb@xxxxxxxxxxxxxxx> wrote: > > > > What does > > ls -l /dev/hd[eg]5 > > show? How about > > cat /proc/partitions > > dd if=/dev/hde5 of=/dev/null bs=1024k > > Thanks a lot, Neil, turns out those nodes were not present. After I > mknod'd them, all's fine in RAIDland... > Quick question: does using extended partitions for RAID affect > performance? The fact that the partitions are "extended" is invisible to most of the kernel, and it could not have any affect of performance. NeilBrown" Guy -----Original Message----- From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Ming Zhang Sent: Friday, October 22, 2004 1:28 PM To: linux-raid@xxxxxxxxxxxxxxx Subject: md on partition Hi folks. I remembered that there was a discussion on the list about some abnormal performance penalty if u use a partition instead of a whole disk for MD. But I could not find this discussion via archival or google. Could somebody be kindly enough to point me to the right spot? Thanks a lot. Ming - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html