I think the point, Chester, which everyone seems to be dancing around
or missing, is that your planning may need to go back to the drawing board
on this one. Absorb the resources out there for how to best configure
your pools and vdevs, *then* implement. That's the most efficient way to go
about
SUMMARY :
I attach a new disk device to an existing mirror set.
zpool iostat poolname 5 does not report write bandwidth data
zpool iostat -v poolname 5 reports read and write data.
also seen, sometimes the output for bandwidth is non-zero but
has no units [ B, KB, MB, etc ].
I'm looking at getting a DRAM-based Solid State Drive (the old style,
using DDR or DDR2 DIMMs with a battery backup). I need something that
does a silly number of IOPS, and I'm not willing to pay for a Zeus SSD.
:-)
I found this one:
http://www.acard.com/english/fb01-product.jsp?prod_no=ANS-9
On Mon, Aug 10, 2009 at 05:16:27PM -0500, Bob Friesenhahn wrote:
> On Mon, 10 Aug 2009, Thomas Burgess wrote:
>
> >i think you can add different types of vdevs but doesn't it make you use
> >-f?
> >i thought it was "not a good idea"
>
> I have no idea. I am not brave enough to try it with my ow
On Mon, 10 Aug 2009, Thomas Burgess wrote:
i think you can add different types of vdevs but doesn't it make you use -f?
i thought it was "not a good idea"
I have no idea. I am not brave enough to try it with my own pool and
am too lazy to test with files.
There are lots of things you can d
I guess it's all in what you want. At the end of the day, you have to weigh
the pros and cons and decide what is right for you. To me, adding drives in
mirrored or raidz groups is a small price to pay for the speed, ease of
administration, and data integrity that zfs offers. Snapshots and clones
Lets not forget despite the fact us lunatic fringe use OpenSolaris on
anything we can get our hands on. Sun Microsystems use Solaris to run
mission critical environments and adding disk in "chunks" like you have
to do in ZFS to a commercial organisation is no big deal. The data is
worth far mo
i think you can add different types of vdevs but doesn't it make you use -f?
i thought it was "not a good idea"
On Mon, Aug 10, 2009 at 2:48 PM, Bob Friesenhahn <
bfrie...@simple.dallas.tx.us> wrote:
> On Mon, 10 Aug 2009, Thomas Burgess wrote:
>
> unfortunately this is not possible right now.
On Mon, 10 Aug 2009, Thomas Burgess wrote:
unfortunately this is not possible right now. The only way to expand raidz
is to add another raidz vdev or replace all the disks with larger ones...
I don't think that there is an actual requirement for all the vdevs in
a pool to be of the same type
unfortunately this is not possible right now. The only way to expand raidz
is to add another raidz vdev or replace all the disks with larger ones...
On Mon, Aug 10, 2009 at 2:21 PM, Nandini Mocherla
wrote:
> Hi All,
>
> I have a RAIDZ pool configured on my system with 3 disks . Now I would
>
Hi All,
I have a RAIDZ pool configured on my system with 3 disks . Now I would
like to add a single disk to the existing RAIDZ pool instead of adding
raidz devices. Is it possible?
Thanks
Nandini
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On 9-Aug-09, at 3:50 , Erik Trimble wrote:
Also, I'd recommend you not forget to remove the Swap and Dump
volumes from the CF rpool. You could theoretically keep Dump, but,
honestly, why bother. So, you could likely get a full install of
OSOL on a 4GB CF card, and maybe even a 2GB card, e
On 08/10/09 11:33, Darren J Moffat wrote:
Menno Lageman wrote:
Mike Gerdts wrote:
This was previously discussed...
http://mail.opensolaris.org/pipermail/zfs-discuss/2008-July/019762.html
Thanks for the pointer (I remember this being discussed, but couldn't
find it again). That seems to be
Why not just do simple mirrored vdevs? or use cheaper 1tb drives for the
second vdev?
I don't knowit's up to you...To me the benefits of ZFS far outweigh the
limitations. Also, in my opinion, when you are expanding your storage, it's
a good idea to add it in chunks like this...adding a 4 drive
Thanks for the info so far. Yes, I understand that you can add more vdevs, but
at what cost? With the 2TB drives costing $300 each, I wanted to get more or
less the bare minimum and then add more drives once I filled the capacity. I
understand that raidz1 is similar to RAID5 (it can recover f
Yes, vdevs allow you to expand your zpool. One zpool consists of groups of hard
drives. Your zpool consists of one group of drives. That group contains 4
drives that are 2TB. You can easily add another group of drives to your zpool.
You can not change the number of discs of a group, but you can
Menno Lageman wrote:
Mike Gerdts wrote:
This was previously discussed...
http://mail.opensolaris.org/pipermail/zfs-discuss/2008-July/019762.html
Thanks for the pointer (I remember this being discussed, but couldn't
find it again). That seems to be pretty much the same as what I came up
wit
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