Ok, so, taking 2 300Gb disks, and 2 500Gb disks, and creating an 800Gb mirrored striped thing is sounding like a bad idea... what about just creating a pool of all disks, without using mirrors? I seen something called "copies", which if i am reading correctly, will make sure a number of copies of a file exist... Am i reading that correctly? If this does work the way i think it works, then taking all 4 disks, and making one large 1.6Tb pool, setting copies to 2, should, in theory, create a poor mans pool with striping, right?
--Tiernan On Mon, Jul 18, 2011 at 7:20 AM, Brandon High <bh...@freaks.com> wrote: > On Sun, Jul 17, 2011 at 12:13 PM, Edward Ned Harvey > <opensolarisisdeadlongliveopensola...@nedharvey.com> wrote: > > Actually, you can't do that. You can't make a vdev from other vdev's, > and when it comes to striping and mirroring your only choice is to do it the > right way. > > > > If you were REALLY trying to go out of your way to do it wrong somehow, I > suppose you could probably make a zvol from a stripe, and then export it to > yourself via iscsi, repeat with another zvol, and then mirror the two iscsi > targets. ;-) You might even be able to do the same crazy thing with > simply zvol's and no iscsi... But either way you'd really be going out of > your way to create a problem. ;-) > > The right way to do it, um, incorrectly is to create a striped device > using SVM, and use that as a vdev for your pool. > > So yes, you could create two 800GB stripes, and use them to create a > ZFS mirror. But it would be a really bad idea. > > -B > > -- > Brandon High : bh...@freaks.com > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > -- Tiernan O'Toole blog.lotas-smartman.net www.tiernanotoolephotography.com www.the-hairy-one.com
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