On Sat, 20 Mar 2010, Eric Andersen wrote:
2. Taking into account the above, it's a great deal easier on the
pocket book to expand two drives at a time instead of four at a
time. As bigger drives are always getting cheaper, I feel that I
have a lot more flexibility with mirrors when it comes
I went through this determination when setting up my pool. I decided to go
with mirrors instead of raidz2 after considering the following:
1. Drive capacity in my box. At most, I can realistically cram 10 drives in
my box and I am not interested in expanding outside of the box. I could go
w
> A pool with a 4-wide raidz2 is a completely nonsensical idea. It has
> the same amount of accessible storage as two striped mirrors. And would
> be slower in terms of IOPS, and be harder to upgrade in the future
> (you'd need to keep adding four drives for every expansion with raidz2
> - with mir
> I have noted there is now raidz2 and been thinking witch woul be
> better.
> A pool with 2 mirrors or one pool with 4 disks raidz2
If you use raidz2, made of 4 disks, you will have usable capacity of 2
disks, and you can tolerate any 2 disks failing.
If you use 2 mirrors, you will have a total
On Fri, March 19, 2010 02:28, homerun wrote:
> Greetings
>
> I would like to get your recommendation how setup new pool.
>
> I have 4 new 1.5TB disks reserved to new zpool.
> I planned to crow/replace existing small 4 disks ( raidz ) setup with new
> bigger one.
>
> As new pool will be bigger and
Thanks !!
I will go to raidz2 , seems to be best choise for me..
Data fault tolerance vs amont of space suite for me.
Thanks all !!!
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On Fri, Mar 19, 2010 at 12:59:39AM -0700, homerun wrote:
> Thanks for comments
>
> So possible choises are :
>
> 1) 2 2-way mirros
> 2) 4 disks raidz2
>
> BTW , can raidz have spare ? so is there one posible choise more :
> 3 disks raidz with 1 spare ?
raidz2 is basically this, with a pre-silve
Thanks for comments
So possible choises are :
1) 2 2-way mirros
2) 4 disks raidz2
BTW , can raidz have spare ? so is there one posible choise more :
3 disks raidz with 1 spare ?
Here i prefer data availibility not performance.
And if need sometime to expand / change setup it is then that time p
On Fri, Mar 19, 2010 at 06:34:50PM +1100, taemun wrote:
> A pool with a 4-wide raidz2 is a completely nonsensical idea.
No, it's not - not completely.
> It has the same amount of accessible storage as two striped mirrors. And
> would be slower in terms of IOPS, and be harder to upgrade in the fu
On Fri, Mar 19, 2010 at 2:34 PM, taemun wrote:
> A pool with a 4-wide raidz2 is a completely nonsensical idea. It has the
> same amount of accessible storage as two striped mirrors. And would be
> slower in terms of IOPS, and be harder to upgrade in the future (you'd need
> to keep adding four dri
A pool with a 4-wide raidz2 is a completely nonsensical idea. It has the
same amount of accessible storage as two striped mirrors. And would be
slower in terms of IOPS, and be harder to upgrade in the future (you'd need
to keep adding four drives for every expansion with raidz2 - with mirrors
you o
Greetings
I would like to get your recommendation how setup new pool.
I have 4 new 1.5TB disks reserved to new zpool.
I planned to crow/replace existing small 4 disks ( raidz ) setup with new
bigger one.
As new pool will be bigger and will have more personally important data to be
stored long
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