2012-08-15 14:20, Darren Reed wrote:
GRUB is another part of the concern.
I've heard of instances where ZFS pools with 4K blocks are misaligned
due to the bootblocks - this is discussed here:

It is technically possible, so ZFS follows the approach of GPT
partitioning when given a dedicated drive (note that rpools are
in MBR partitions), by reserving 256 sectors from start of disk
(not 63 sectors as was usual for MBR). This gives a default
offset divisible by many reasonable powers of 2; you should
however keep track of where your partitions end (odd numbers,
overall length in standard 512b sectors divisible by 8), and
where other partitions start (even numbers divisible by 8).
You can use (g)parted for this lowlevel tracking.

HTH,
//Jim Klimov


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