We currently have a couple of Netapp 760 each with a 7x18gb shelf in a cluster config. The best performance we can get out of this is about 10MB writes.
So we decided to test out what a gig card would do for us and the best we could get was 16MB writes and 30MB reads.
In terms of testing the number of disks in a volume we saw an increase in performance by using a 7disk volume as opposed to a 3 disk volume, but surprisingly we didn't see a substantial increase when we went to 14 disks in a volume.
So have any of you been able to test and justify using 14 disks as opposed to 7 disks in a volume?
Have any of you been able to get better than 16MB writes?
It also doesn't seem to benefit by having one shelf on one FC-AL card and another shelf on another FC-AL card?
It seems the entire performance from what I can tell is limited by the nvram size. (16MB, half of 32MB nvram), thoughts?
We have determined its not the gig cards in our suns that is limiting it as we can get 100MB sun gig card to sun gig card.
Thanks
Art Hebert Email: art@arzoon.com mailto:art@arzoon.com Arzoon IT Dept. Phone: 650 522-6061 Mobile: 650 444-8667