On Wed, 2003-06-11 at 10:02, Matthew Mitchell wrote:
Hello everyone,
In the interest of keeping around some otherwise-functional Sparcs, I was asked if it would be possible to move a linux md raid set from an Intel box to a Sun box. I said, "Sure," and then immediately wondered about byte ordering -- will this work? Take the SCSI box off of the intel, plug it into the sparc, and try to run the array...
Then my next thought was that someone here would know the answer. :)
It will not work. The on-disk MD superblock is written using cpu arch format. Furthermore, let's say you are able to re-create the raid5 array after moving it to the Sun box. What about the filesystem and data? At least you need a filesystem which manipulates its metadata in neutral format for this kind of "move" to work.
As I feared.
What _about_ the filesystem and data, though? Some filesystems are certainly written in a known byte-order, like ISO 9660. Are there any of (ext3, XFS, JFS, reiserfs) that this is true for? Or are they all written in cpu native byte-order?
-- Matthew Mitchell Systems Programmer/Administrator matthew@geodev.com Geophysical Development Corporation phone 713 782 1234 1 Riverway Suite 2100, Houston, TX 77056 fax 713 782 1829
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