[mythtv-users] RAID: full disk or partition (was: Question re: available SATA ports and linux software RAID)

Robin Hill myth at robinhill.me.uk
Tue Apr 26 08:43:11 UTC 2011

On Sun Apr 24, 2011 at 10:36:37PM -0400, Alex Halovanic wrote:

> https://raid.wiki.kernel.org/index.php/Partition_Types
> This gave a few arguments for using partitions (while also conceding that
> the author of the RAID tool uses full disks, so clearly it's OK).  The
> biggest one that stood out to me was that replacement disks could end up
> being slightly smaller due to manufacturer or model variance, and of course,
> nobody advertises the exact size.  RAID requires a replacement disk to be at
> least as large as the failed disk to rebuild the array.
> When I set up my RAID 5 array, I went with slightly undersized partitions
> and "wasted" a bit of the free space.  Knowing I can throw in *any* 2TB disk
> I can find off the shelf to replace a dead disk was worth both the extra GB
> or two and the hassle of setting up partitions to me.
Since about 320GB drives, all manufacturers (well, there's few enough
left now) use standard disk sizes, so this is no longer an issue (except
for older systems using smaller drives).

    ( ' }     |       Robin Hill        <myth at robinhill.me.uk>  |
   / / )      | Little Jim says ....                            |
  // !!       |      "He fallen in de water !!"                 |
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