Softraid with mdadm and Linux - Part II

This is the second part of my mdadm tutorial. This part covers the following topics:

Creating and failing RAID5
Creating and failing RAID6
Converting from RAID1 to RAID10
Converting from RAID01 to RAID10

Extend dump devices in AIX

If you see a message in AIX like this:

LABEL:          DMPCHK_TOOSMALL
IDENTIFIER:     E87EF1BE

Date/Time:       Sun Jun  1 12:00:00 GMT+00:00 2012
Sequence Number: 182200
Machine Id:      XXXXXXXXXXXX
Node Id:         db03
Class:           O
Type:            PEND
WPAR:            Global
Resource Name:   dumpcheck

Description
The largest dump device is too small.