----- Original Message ----- From: Matthew Ahrens <[EMAIL PROTECTED]> Date: Thursday, June 1, 2006 12:30 pm Subject: Re: [zfs-discuss] question about ZFS performance for webserving/java
> Why would you use NFS? These zones are on the same machine as the > storage, right? You can simply export filesystems in your pool to the > various zones (see zfs(1m) and zonecfg(1m) manpages). This will > resultin better performance. This is why I noted it as optional, and gave my reasoning (a T1000 with a seperate box handling storage, exporting via NFS to the T1000). I'm not investing in the blackhole that is FC, no way, and I don't know how to cram 8+ SATA ports into a T1000. I can't justify the price of the T2000 at this point. But again, NFS was *optional*. Using a home-built box, I would be using directly attached storage. > > > There is no need for multiple pools. Perhaps you meant two raid-z > groups (aka "vdevs") in a single pool? Also, wouldn't you want to use > all 8 disks, therefore use two 4-disk raid-z groups? This way you > wouldget 3 disks worth of usable space. Yes, I meant what you specified, sorry for my lack of knowledge. :) I need two of the disks for the root FS, because U2 won't allow me to make the root FS on ZFS fs. Otherwise, I'd love to use all 8. > Depending on how much space you need, you should consider using a > singledouble-parity RAID-Z group with your 8 disks. This would > give you 6 > disks worth of usable space. Given that you want to be able to > toleratetwo failures, that is probably your best solution. Other > solutionswould include three 3-way mirrors (if you can fit another > drive in your > machine), giving you 3 disks worth of usable space. That would be ideal, unfortunately that won't be in U2 for various reasons (I won't argue this point, although I really think the "process" is hurting Solaris in this regard, this should have been included - lots of people need two disk redundancy at least.) Thanks, David _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
