At 11:24 AM 10/9/00 -0400, Todd C. Merrill wrote:
I've got a filer with a shelf of 36's (one RG/volume) and twoshelves of 18's (one RG/volume); each RG has a hot spare. What I do NOT want to happen is the situation described in this thread--an 18 GB disk dying, ONTAP taking the 36 GB drive in as the new parity drive, and my not being able to fail it out because it is now a *full* 36 GB parity drive, instead of an 18 GB parity and 18 GB wasted.
If you have an 18GB drive fail and there are only 36GB hot spares, the filer will automatically take a 36GB drive and begin rebuilding, but it will only use 18GB of the available space. If this bothers you, you could later add a spare 18GB drive to the system, pull the 36GB drive that's in your 18GB volume, and the filer will rebuild using the new 18GB spare. If you don't like the risk of forcing a rebuild in this manner, it's best to keep hot spares for each size disk in the filer.
This situation is different from purposely expanding an 18GB volume/RG (vol add) with 36GB disks.
Hope that helps.
-- James N. (Jamey) Maze Office: 615-773-3541 System Engineer Mobile: 615-496-4799 Network Appliance www.netapp.com