[OpenIndiana-discuss] Are there any issues re ZFS on 2TB disks (from WD??) with large blocksizes?
martin at martux.org
Mon Feb 7 12:43:54 UTC 2011
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
> 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.
> deano at cloudpixies.com
since when is a disk label a boot loader?
here is what i havd written:
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.
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