Red Hat Bugzilla – Bug 56741
With > 12 devices in RAID array, devices silently "disappear"
Last modified: 2007-04-18 12:38:26 EDT
Description of Problem:
Apparently there is a limit of 12 devices in a RAID array. At least
in a default configuration. When presented with more Disk Druid
does not warn that it cannot accept all of them but silently drops
"excessive" ones in a seemingly "random" manner. Results are a bit
surprising as, for example, disk "sde" may be quietly missing from
a resulting array while those with "higher" and "lower" letters are
I just created a RAID array with 14 devices in it without any problems. Is this
> Is this reproducible.
It was at the time I filed that error. An underlying cause was really
a 12 devices limit built in in raidtools. Once I recompiled raidtools
with headers coordinated with kernels (which gives an upper limit of something
like 27 or 29 devices - IIRC) we did create arrays with bigger sets of disk
although I am not sure if anybody tried that with anaconda. Probably
'raidtools' on "stage2" image have to be replaced for that.
Aha, that makes sense. I seem to remember a discussion about that, even.
Should be good for the next release then.
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.