請問有人了解關於EVA的算法嗎？

[watermelonyu]

小弟公司目前買了20顆72G 的硬碟是要FOR EVA用 ,目前硬碟要做RAID 5 與SPARE ,請問我總共剩下多少空間可用？？？？？

[watermelonyu]

Hi



formatted 72GB = 72GB x 0.93 = 66.96GB



protection level = 1 (spare disk)

66.96GB x (20-2) = 1205.28GB



100% RAID-5 disks at 1 Disk Group

1205.28GB x (4/5) = 964.224GB



Alarm level = 95%

964.224GB X 0.95 = 916GB



If the configuartion of EVA are same as mentioned of above, the Available capacity of RAID5 is about 916GB.



Thanks

Mike Wu