As a side bar, since you cannot remove a vdev, you can really shot
oneself in the foot if not careful (as I recently did). I had a X4500
system with (4) RAIDz2 vdevs in one pool. When adding a disk to the
system, I forgot to add it as a spare and I was left with a stripe
across the
Ok, that was a very good explanation. Thanx a lot!
So, I have a 8 ports SATA card, and I have one ZFS raid with 4 discs, 500gb
each. These 4 discs are one vdev, right? And then I can add 4 more discs and
create another vdev of them.
1) Vdev of 4 samsung 500GB discs. - zpool, consisting of
Orvar Korvar wrote:
Ok, that was a very good explanation. Thanx a lot!
So, I have a 8 ports SATA card, and I have one ZFS raid with 4 discs,
500gb each.
These 4 discs are one vdev, right?
Yes you have a pool with 1 4 disk *RAIDZ* type vdev.
And then I can add 4 more discs and create another
making all the drives in a *zpool* the same size.
The only issue of having vdevs of diffrent sizes is when
one fills up, reducing the strip size for writes.
making all the drives in a *vdev* (of almost any type) the same
The only issue is the unused space of the largest device, but
then we
So, it basically boils down to this, what operations can I do with a vdev? Any
links? Ive googled a bit, but there is no comprehensive list of what I can do.
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Hi Orvar,
This section describes the operations you can do with a mirrored storage
pool:
http://docs.sun.com/app/docs/doc/817-2271/gazhv?a=view
This section describes the operations you can do with a raidz storage
pool:
http://docs.sun.com/app/docs/doc/817-2271/gcvjg?a=view
Go with mirrored
Orvar Korvar wrote:
Ok, so i make one vdev out of 8 discs. And I combine all vdevs into one large
zpool? Is it correct?
I have 8 port SATA card. I have 4 drives into one zpool. That is one vdev,
right? Now I can add 4 new drives and make them into one zpool. And now I
combine both zpool
There are several types of vdevs:
wow, outstanding list Kyle!
suggested that there is little benefit to having 10
or more devices in a RAIDZ vdev.
the tgx is split between vdevs, the blocks to the single
raidz vdev is divided by the data elements in the raidz
set, so lets say its 128k,
NB. the zpool(1m) man page provides a rather extensive explanation
of vdevs.
[EMAIL PROTECTED] wrote:
There are several types of vdevs:
wow, outstanding list Kyle!
suggested that there is little benefit to having 10
or more devices in a RAIDZ vdev.
the tgx is split between vdevs,
Ok, so i make one vdev out of 8 discs. And I combine all vdevs into one large
zpool? Is it correct?
I have 8 port SATA card. I have 4 drives into one zpool. That is one vdev,
right? Now I can add 4 new drives and make them into one zpool. And now I
combine both zpool into one zpool? That can
On Fri, 2008-05-23 at 13:45 -0700, Orvar Korvar wrote:
Ok, so i make one vdev out of 8 discs. And I combine all vdevs into one large
zpool? Is it correct?
I have 8 port SATA card. I have 4 drives into one zpool.
zpool create mypool raidz1 disk0 disk1 disk2 disk3
you have a pool consisting
Orvar Korvar пишет:
Ok, so i make one vdev out of 8 discs. And I combine all vdevs into
one large zpool? Is it correct?
I think it is easier to provide couple of examples:
zpool create pool c1t0d0 mirror c1t1d0 c1t2d0
This command would create storage pool with name 'pool' consisting of 2
Ive never understood it.
Ive heard that for the Thumper which uses 48 drives, you should not make them
all into one zpool. Instead you should make them into several vdevs. And then
you combine all vdevs into one zpool? Is it so? Why do you do that? Why not
several zpools?
This message
On Wed, 21 May 2008, Orvar Korvar wrote:
Ive heard that for the Thumper which uses 48 drives, you should not
make them all into one zpool. Instead you should make them into several
vdevs. And then you combine all vdevs into one zpool? Is it so? Why do
Right. A vdev is the smallest storage
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