I know the drive itself does 512b emulation but i would rather run 4K if theres a performance increase!
thanks Matt ----- Original Message ----- From: "Chris Siebenmann" <[email protected]> To: "Matthew Mabis" <[email protected]> Cc: [email protected] Sent: Friday, March 21, 2014 9:04:37 AM Subject: Re: [OmniOS-discuss] Debating Swapping 2TB with 4TB drives in RaidZ2 or Create new Vol and clone | I am debating the idea of just swapping all my hard drives in my | current 8x2TB RaidZ2 (all be it slowly) and let the environment | resilver each drive than expand versus creating a new RaidZ2 on a | different box and cloning the data over. | | Obviously i know of the Pros/Cons/Risks associated with that | method. My question about debating deals with the new drives being 4K | where as the old drives were 512b aligned [...] As far as I know there is no question here: you simply cannot put 4K drives in a vdev originally created with 512b drives[*]. You need to make a new pool with the 4K drives. Even if you could get them into the existing pool, the performance effects would likely be relatively bad. ZFS does a lot of unaligned writes. - cks [*: If we're being technical, it's possible to force OmniOS to think that they're all 512b drives. ] _______________________________________________ OmniOS-discuss mailing list [email protected] http://lists.omniti.com/mailman/listinfo/omnios-discuss
