[OpenIndiana-discuss] Are there any issues re ZFS on 2TB disks (from WD??) with large blocksizes?

[Martin Bochnig]

On Mon, Feb 7, 2011 at 2:33 PM, Deano <deano at rattie.demon.co.uk> wrote:
> There is no problem in general with 2TB+ data drives under OI, you can get
> some extra speed by using a modified zpool
> (http://wiki.openindiana.org/oi/SATA+-+Advanced+Format+and+4K+Sector+drives)
> when you create but it works either way.
>
> As mentioned by some other posters, for boot drives you also have an issue
> of boot loaders and 32/64 bit ness.
>
> HTH,
> Deano
> deano at cloudpixies.com



since when is a disk label a boot loader?


here is what i havd written:


Situation:

32bit kernel (VTOC and EFI label [?]): Limit if larger than 1TB (1TB still ok)

64bit kernel:  if VTOC label: Limit if larger than 2TB (2TB still ok)
                   if EFI label: No reasonable limit.


Drawback: EFI hardly has boot support on most current BIOS based x86 computers.

But for 2TB disks you are still fine: Bootable VTOC labels still support them.
Beyond that (e.g. upcoming 3TB disks), see above.




%mab