[geeks] Impressive...

[Nadine Miller]

On Mar 4, 2009, at 5:22 PM, Francois Dion wrote:
> How are you thinking of using the 2.5"? I use 2x 3.5 for the os
> (bootable zfs) and /opt and other anciliaries, and two mirrors, for 6
> drives total. I used to have oracle on a clariion but zfs and sata is
> faster. If I needed more write performance, I'd add a pair of SSD for
> the ZIL. But even with multiple ATSC HDTV streams recording and
> playing at the same time I still have plenty of wiggle room without
> that, so...

I'd like to hear more about that Oracle Clariion issue if you are  
willing to share, Francois?

>> If I wanted to add the disks in stages what
>> would work best from a ZFS point of view? I hate the idea of buying  
>> 4 disks
>> at once, for obvious reasons...
>
> Add them 2 at a time, mirrored. Then either append the new mirror to
> the pool, or create a new pool for the new mirror. Not sure what your
> application is. But do not use ZFS without redundancy.

Why not RAID5?  Is the performance that dramatically different?  If  
that's the case, I'm going to have to re-think my hardware plans.

Thanks--
=Nadine=