On Tue, 2005-07-05 at 13:44 -0400, Ming Zhang wrote: > Thx. > > So it looks like mkraid might do this. I tried mkraid and it works. Thanks a lot! Ming > > With this hint, I googled the --danferous-no-resync and try to do this > > # mdadm --create /dev/md1 --level=5 --assume-clean --raid- > devices=4 /dev/sdf /dev/sdg /dev/sdh /dev/sdi > > But then i ran some io and use iostat to find that only 3 devices has io > request and the parity disk has no disk activity at all. so this will be > a skewed data for me. > > Ming > > > > On Tue, 2005-07-05 at 19:26 +0200, Lord Hess wrote: > > kkraid -R --dangerous-no-resync /dev/md.. > > > > Regards, > > > > Lord > > > > Certon systems GmbH > > Hans-Bunte-Str. 8 - 10 > > 69123 Heidelberg > > Tel: +49 6221 549810 > > Fax: +49 6221 549809 > > http://www.certon.de > > mail to: hess@xxxxxxxxx > > -----Ursprüngliche Nachricht----- > > Von: linux-raid-owner@xxxxxxxxxxxxxxx > > [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] Im Auftrag von Ming Zhang > > Gesendet: Dienstag, 5. Juli 2005 19:23 > > An: Linux RAID > > Betreff: skip raid5 reconstruction > > > > Hi folks > > > > I am testing some HW performance with raid5 with 2.4.x kenrel. > > > > It is really troublesome every time I create a raid5, wait 4 hours for > > reconstruction, and then test some data and then recreate another one > > and wait again. I wonder if there is any hack or option available to > > create a raid5 without reconstruct the parity disk. I just have interest > > to test the performance so do not care about data correctness at this > > stage. > > > > Thanks! > > > > > > 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
