On Friday 07 May 2004 07:52, John Lange wrote: > Thank you Martin. You have some really great insights there. > > A couple of things about the raid sets confused me: > > Each disk partitioned alike: > > 1 30MB > > 2 1/2 size_of_swap_ > > 5 rest_of_disk > > > > Now you can create mds on the disk: > > md0 raid1 sda1 sda2 sda3 sda4 > > md1 raid1 sda1 sdb1 > > md2 raid1 sdc1 sdd1 > > md3 raid5 sda5 sdb5 sdc5 sdd5 > > First, why do we skip sdx3 and sdx4 on each disk and go directly to sdx5 > for partition numbers? That is the first number a logical partition gets, as opposed to primary. > Second, I'm very confused by the way you divided up the raid sets.... > I'm thinking you erred? I'm such a newb its possible I really don't > understand whats going on so hopefully you can verify. I concur, there are errors. This is probably what he meant > md0: did you mean sda1 sdb1 sdc1 sdd1 ? Yes. It was obviously a typo. > md1: did you mean sda2 sdb2 ? > md2: did you mean sdc2 sdd2 ? If it were me, why not do entire swap (not 1/2 size_of_swap) on a four-way raid 1, just as with /boot ? Is way simpler. > md3: did you mean sda5 sdb5 sdc5 sdd5 ? > > And last, is it possible to build the system from the beginning on RAID? > I'm using slackware. I see there is a section in the how-to for > converting a red hat system after the fact but obviously it would be > easier if I didn't have to do that. What proved the easiest for me is installing the OS on a temporary scrap harddisk, build your raid sets from there on the real target disks and copy. There is a more complicated way too, it involves setting failed-disk status on the drive holding your original data. Maarten - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
