Re: [zfs-discuss] Pure SSD Pool
On Sat, Jul 9, 2011 at 2:19 PM, Roy Sigurd Karlsbakk wrote: > Most drives should work well for a pure SSD pool. I have a postgresql > database on a linux box on a mirrored set of C300s. AFAIK ZFS doesn't yet > support TRIM, so that can be an issue. Apart from that, it should work well. Interesting-- what is the suspected impact of not having TRIM support? I would imagine this might cause slow writes after some time of use, since the OS isn't able to tell the drive what blocks have been freed, so the drive doesn't get a chance to "pre-erase" those blocks before another write comes along that would occupy them anew. I'm contemplating a similar setup for some servers, so I'm interested if other people have been operating pure-SSD zpools and what their experiences have been. Eric ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] sharetab not automatically updated
A bit of weirdness with my NFS exports. If I share a filesystem (zfs set sharenfs) the share is inaccessible. I found that /etc/dfs/sharetab wasn't being updated. If I add the fs to /etc/dfs/sharetab then all is good again. Appending a line to sharetab isn't that big a deal, I'm just wondering if all h3ll will break loose when I inevitably reboot. Any help appreciated, Chris Twa ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Pure SSD Pool
On Mon, Jul 11, 2011 at 7:03 AM, Eric Sproul wrote: > Interesting-- what is the suspected impact of not having TRIM support? There shouldn't be much, since zfs isn't changing data in place. Any drive with reasonable garbage collection (which is pretty much everything these days) should be fine until the volume gets very full. -B -- Brandon High : bh...@freaks.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
