Just wondering,
Would it be possible to create two 7 disk raids and stripe them?
On Mon, 15 Mar 1999, MOLNAR Ingo wrote:
>
> On Sun, 14 Mar 1999, Andrew Doane wrote:
>
> > The first, I believe is a bug. I had a RAID5 partition set up and
> > then decided to re-allocate the disks for a raid0 configuration.
> > I successfully created the RAID0 device, created a file system, and
> > copied some files over. I then shut down the md device, and rebooted.
> > Upon reboot, the auto-start mechanism in the kernel still found raid5
> > superblocks and attempted to bring it up, but failed. [...]
>
> did you have a
>
> persistent-superblock 1
>
> line in your RAID0 raidtab configuration section?
>
> > [...] It appears
> > to me that under a raid0 configuration the raid superblocks are not
> > being saved durng a raidstop. For kicks I created a raid1 device using
>
> the thing is, the 'default' value for persistent-superblock is 0 for RAID0
> and 1 for RAID1,4,5. This is to lessen the chance of messed up old RAID0
> arrays. I'll probably enforce the persistent-superblock line in the next
> release so that your problem will not happen again.
>
> > The second problem is with system hangs while using raid5. I did tweak
> > raidtools and the kernel source to allow up to 14 disks (going into the
>
> sorry, only 12 disks are possible currently :( the RAID superblock is 4K.
> It's easy to extend it but it has to be done carefully. (a superblock size
> field solves the problem) Is it important to have 14 disks?
>
> > reserved data space - hopefully I won't get in trouble later on), but
> > I exhibited the same problems with non-modified source/tools. The RAID5
>
> but you cannot create a 14-disks array with the unmodified raidtools, can
> you? it should not be possible.
>
> -- mingo
>
James ([EMAIL PROTECTED])
Vortex Internet
My operating system unders~1 long filena~1, and yours?
