I have tested FusionIO together with old thick snapshots.
I created the thick snapshot on a separate old traditional SATA drive, just to check if that could be used as a snapshot target for high performance disks; like a Fusion IO card.
For those who doesn't know about FusionIO; they can deal with 150-250,000 IOPS.
And to be honest, I couldn't bottle neck the SATA disk I used as a thick snapshot target.
The reason for why is simple:
- thick snapshots uses sequential write techniques
If I would have been using thin snapshots, than the writes would most likely be more randomized on disk, which would have required more spindles to coop with this.
Anyhow;
I am still eager to hear how to use an external device to import snapshots.
And when I say "import"; I am not talking about copyback, more to use to read data from.
Regards Tomas