Bug#427880: Script to automatically add a new harddrive with multiple RAID1 partitions

[Arno van Amersfoort]

Package: mdadm
Version: 2.5.6-9

I wrote a script (see attachement) to automatically add a new harddrive 
to a system which already has a harddrive with multiple RAID1 
partitions. Now one has manually create a partition table on the new 
drive, copy the MBR (if bootable), create SWAP (if used) and do a mdadm 
--add for each partition. My script automates this process. This is 
especially handy when a harddisk containing multiple RAID1 partitions 
fails and is replaced by a new empty one.

Example:
When the system has 2 harddives, sda & sdb and looks like this:
- sda1/sdb1 (type fd) part of /dev/md0 (RAID1)
- sda2/sdb2 (type 82) swap
- sda5/sdb5 (type fd) part of /dev/md1 (RAID1)

When sdb fails and is replaced with a new (empty) harddrive. A single 
command like: "mdadd.sh /dev/sda /dev/sdb" is sufficient. This will 
completely restore the array and even the swap is recreated on the sdb.

I hope it's usefull.





-- 
Ing. A.C.J. van Amersfoort (Arno)
Department Of Electronics (ELD, k1007)
Huygens Laboratory
Leiden University
P.O. Box 9504
Niels Bohrweg 2
2333 CA Leiden
The Netherlands
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Phone : +31-(0)71-527.1894   Fax: +31-(0)71-527.5819
E-mail: a.c.j.van.amersfoort at eld.physics.leidenuniv.nl
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Arno's (Linux firewall) homepage: http://rocky.eld.leidenuniv.nl








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