On 6/19/07, Joe S <[EMAIL PROTECTED]> wrote:
Thanks for all the comments. Very helpful.
I have another question. The six disk raidz2 pool works, but I noticed in
Richard Elling's blog that a raidz/raidz2 pool has the read performance of a
single drive (unless I misread something). What if I crea
Joe S wrote:
> Thanks for all the comments. Very helpful.
>
> I have another question. The six disk raidz2 pool works, but I noticed
> in Richard Elling's blog that a raidz/raidz2 pool has the read
> performance of a single drive (unless I misread something). What if I
> create 2x three disk raidz
Thanks for all the comments. Very helpful.
I have another question. The six disk raidz2 pool works, but I noticed in
Richard Elling's blog that a raidz/raidz2 pool has the read performance of a
single drive (unless I misread something). What if I create 2x three disk
raidz vdevs and put them in a
> > If you have the same type and columns, then you have the same
> > availability expectations. If instead you take a 5 disk raidz and add a
> > 2 disk stripe, you're dramatically changing the availability
> > expectations. So the force is required.
>
> Certainly, but adding a mirror doesn't de
On Mon, Jun 18, 2007 at 08:57:29AM -0700, Darren Dunham wrote:
>
> I think it's mainly to keep you from doing something silly without
> meaning to.
That's certainly a good reason. :)
> If you have the same type and columns, then you have the same
> availability expectations. If instead you take
> > The configuration of any vdev that you create does not constrain you
> > with any vdevs you want to add to the pool in the future. You can start
> > with any of your three choices above and then add any of the other three
> > to the same pool.
>
> 'zpool add' will complain if the number of di
On Sun, Jun 17, 2007 at 01:22:34PM -0700, Darren Dunham wrote:
>
> The configuration of any vdev that you create does not constrain you
> with any vdevs you want to add to the pool in the future. You can start
> with any of your three choices above and then add any of the other three
> to the sam
> After getting a few replies on this, I've realized the following:
>
> If I have 3 disks in a raidz vdev and I want to add more storage in the
> future, I would need add another 3 disk raidz vdev.
This is not a constraint that ZFS forces on you.
> If I have 4 disks in a raidz2 vdev and I want t
After getting a few replies on this, I've realized the following:
If I have 3 disks in a raidz vdev and I want to add more storage in the
future, I would need add another 3 disk raidz vdev.
If I have 4 disks in a raidz2 vdev and I want to add more storage in the
future, I would need add another 4
ok if its just storing stuff raidz2 is probably the best use of space.
raidz2 on 5 disk and one spare - this can take 3 disk failing before you lose
your data.
The three strip mirror will give you nice performance but from the sounds of it
you don't need it.
This message posted from opensola
My understanding is that if I create a 6 disk raidz2,
# zpool create tank raidz2 disk0 disk1 disk2 disk3 disk4 disk5
I cannot add more disks to this set. I cannot expand this. I have to destroy
the raidz2 it and recreate it if I want to increase capacity.
Whereas with 2 way mirrors, i can just k
Joe S gmail.com> writes:
>
> I'm going to create 3x 2-way mirrors. I guess I don't really *need* the
> raidz at this point. My biggest concern with raidz is getting locked into
> a configuration i can't grow out of. I like the idea of adding more
> 2 way mirrors to a pool.
The raidz2 option will
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