In addition to all comments below, 7000 series which are competing with NetApp boxes have the ability to add more storage to the pool in a couple seconds, online and does load balancing automaticaly. Also we dont have the 16 TB limit NetApp has. Nearly all customers did tihs without any PS involvement.
Mertol Ozyoney Storage Practice - Sales Manager Sun Microsystems, TR Istanbul TR Phone +902123352200 Mobile +905339310752 Fax +902123352222 Email mertol.ozyo...@sun.com -----Original Message----- From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-boun...@opensolaris.org] On Behalf Of Richard Elling Sent: Thursday, June 03, 2010 3:51 AM To: Roman Naumenko Cc: zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] one more time: pool size changes On Jun 2, 2010, at 3:54 PM, Roman Naumenko wrote: > Recently I talked to a co-worker who manages NetApp storages. We discussed size changes for pools in zfs and aggregates in NetApp. > > And some time before I had suggested to a my buddy zfs for his new home storage server, but he turned it down since there is no expansion available for a pool. Heck, let him buy a NetApp :-) > And he really wants to be able to add a drive or couple to an existing pool. Yes, there are ways to expand storage to some extent without rebuilding it. Like replacing disk with larger ones. Not enough for a typical home user I would say. Why not? I do this quite often. Growing is easy, shrinking is more challenging. > And this is might be an important for corporate too. Frankly speaking I doubt there are many administrators use it in DC environment. > > Nevertheless, NetApp appears to have such feature as I learned from my co-worker. It works with some restrictions (you have to zero disks before adding, and rebalance the aggregate after and still without perfect distribution) - but Ontap is able to do aggregates expansion nevertheless. > > So, my question is: what does prevent to introduce the same for zfs at present time? Is this because of the design of zfs, or there is simply no demand for it in community? Its been there since 2005: zpool subcommand add. -- richard > > My understanding is that at present time there are no plans to introduce it. > > --Regards, > Roman Naumenko > ro...@naumenko.com -- Richard Elling rich...@nexenta.com +1-760-896-4422 ZFS and NexentaStor training, Rotterdam, July 13-15, 2010 http://nexenta-rotterdam.eventbrite.com/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
