Hi Chris,
I should have specified that I was referring to the Nearline units (plus FAS 250) for which 14 is the limit.
http://now.netapp.com/NOW/knowledge/docs/ontap/rel652/html/ontap/mgmtsag/rai...
Pou
RE:
Pou Lee pou.lee@adobe.com writes:
I have not created 28-disk RAID-DP volumes yet but have investigated this option for one of our Engineering efforts. A special license is required since it is not normally recommended either for technical rational or business justification, i.e., to sell more disks for parity usage.
Maybe for 29, but not for 28. On most platforms the limits on raidsize are
Minimum Default Maximum raidsize raidsize raidsizeraidtype=raid4 2 8 14 raidtype=raid_dp 3 16 28
I am not sure whether one can cheat by using "aggr add ... -g ..." to expand a raid group beyond that. Larger legacy raid groups still work, apparently.
-- Chris Thompson Email: cet1@cam.ac.uk