[Cialug] ZFS article posted

[Jonathan C. Bailey]

We have a similar setup under Nexenta, but disabled the ZIL rather than using an SSD. There are arguments either way, but our system has dual power sources and from what I understand with current SSDs (at least the X25-E), you can't guarantee the data has been fully committed to flash during a power outage.

We are, however, going to add a L2ARC SSD to the mix to speed things up. Our only problem at the moment is that we need an interposer to make it work (we're using SAS drives and using the multipath/dual port option). We've got the recommended interposer, but are going through hell getting it to work physically with the system.

I think we'll end up with an option like this (from another great ZFS based storage build):

http://blogs.iphouse.net/mike/2010/05/a-storage-cluster-is-born/#comment-100

-Jon

----- Original Message -----
From: "Christopher R. Rhodes" <arreyder at apache.org>
To: cialug at cialug.org
Sent: Wednesday, October 6, 2010 8:34:00 AM
Subject: Re: [Cialug] ZFS article posted

On 10/05/10 18:11, Matt Breitbach wrote:
> Not to toot my own horn (ok, maybe just a bit) but I just posted a lengthy
> article about our work on ZFS as a storage system at Anandtech.  If anyone's
> interested check it out -
> http://www.anandtech.com/show/3963/zfs-building-testing-and-benchmarking
> 
> -Matt
> 

Very nice Matt.   I had not considered using SLC SSD drives for the ZIL.  That might just get us a little more mileage
out of our current set up.  We're on FreeBSD for our installs.  It would be very interesting to see if there's much
difference in your benchmarks between it and OpenSolaris.

Thanks for taking the time to post all that.

crr
arreyder at apache.org




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