Aligning a partiton with setup-storage

[Michael Tautschnig]

> For performance reasons we would like to install our servers with
> aligned partitions (Partiton starts at sector number 64 instead of
> 63).
> This is the sequence we would use with fdisk.
>   fdisk /dev/whatever1     x b 1 64
> How can we do that with Setup-Storage or other other FAI tools?
> 
> Patrick
> 
> btw: For Details for "aligned partitons" refer to section "Background" in this PDF:
> http://www.vmware.com/pdf/esx3_partition_align.pdf
>

I have only briefly looked at this document, but I couldn't quite figure out
whether all you need is to enforce that the first partition starts at sector
number 64 *in any case* and you don't care about other partitions or do you need
alignment according to disk geometry? Current setup-storage in mainline FAI
still does use cylinder-aligned partitions, but this requirement has been
dropped in the experimental branch. I'd see several options for the future:

- Drop any kind of alignment and let people create a dummy-partition such that
  the effective data partition only starts as of the 64th sector.
- Make alignment configurable. But then the kind of alignment must get
  clarified.

Best,
Michael

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