[mythtv-users] How to migrate a disk in SW RAID? WAS:Re: RAID 5 of different sized disks for mythtv storage?

list at onnow.net list at onnow.net
Tue Sep 12 14:10:35 UTC 2006

The drives have no partitions on them.  They are wholely used in the RAID5.
Command (m for help): p

Disk /dev/hdd: 320.0 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System

Command (m for help): q

Is that odd?


Quoting Steven Adeff <adeffs.mythtv at gmail.com>:

> On 9/11/06, list at onnow.net <list at onnow.net> wrote:
>> I have a 4 disk RAID in hda(b)(c)(d)
>> I am adding a prommise IDE controler.
>> I want to migrate the raid setup to be hda hdc hdf hdh
>> Any one know how to do that?  The data on the drive will still be
>> there, I just have to tell it to look somehwere else.
>> Also, can anyone confirm that a single promise PCI ATA add in card has
>> two seperate BUS's?  I am trying to break my RAID to one drive per BUS.
> If you set your partitions to be "fd" (linux raid auto-detect) then
> you should be fine, the drives contain "signatures" of sorts that let
> the kernel RAID driver know what partitions belong together. I've
> moved Software RAID arrays between machines and the autodetect always
> properly put the array together.
> As for the Promise PATA card... Each channel on the old ATA is what
> one could consider a seperate bus. (ie they can be used
> simultanesouly, unlike two drives on the same channel)
> --
> Steve
> Before you ask, read the FAQ!
> http://www.mythtv.org/wiki/index.php/Frequently_Asked_Questions
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