One of my filers (F740 running DataONTAP 6.3.3P3D1) has one RAID group with 12 data disks, one parity, one spare, currently over 90% full. We had a data disk fail just a couple of days ago. The message file says reconstruction took 1:13:35.71.

This is an older system that has had several disk failures, but never on the same day, let alone within an hour and a quarter. :-) ObWarning: Your mileage may vary.

owner-toasters@mathworks.com wrote:

I usually setup my filers with raidsize=7 having no more than 7 disks per volume. However, I would like create a raidsize=13 volume. The only risk i can glean from NOW is that rebuild time will increase and thus increase the chances of a second drive failure (during rebuild).

Has anyone had any real world issues with using volumes of raidsize > 10

thanks, -Tavis