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

[Piotr Jasiukajtis]

On Feb 7, 2011, at 1:13 PM, Robin Axelsson wrote:

> Could someone enlighten me as to what is wrong with WD's disks, and particularly what's wrong with their EARS disks?

1. They emulate 512b with a big write performance hit. 
Workaround is to use patched zpool or use zfs sync=disabled, however you will not use patched zpool on a boot zpool.

2. They spin down heads every 8 seconds.

3. I have seen a few bad sector reports and bad heads on those drives.

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Piotr Jasiukajtis | estibi | SCA OS0072
http://estseg.blogspot.com