A customer has purchased an N8500 clustered NAS storage system configured with ten 1 TB SAS disks and twelve 1 TB NL-SAS disks. Two RAID groups are planned. RAID group 1 is a RAID 5 consisting of nine SAS disks. RAID group 2 is a RAID 6 consisting of 11 NL-SAS disks. Two global hot spare disks are configured. What is the available capacity of the storage system?

Question

Quizplus · Accepted Answer

RAID 5 with 9 SAS disks: 8 disks for data, 1 for parity, so 8 TB usable. RAID 6 with 11 NL-SAS disks: 9 disks for data, 2 for parity, so 9 TB usable. Total usable capacity is 8 TB + 9 TB = 17 TB. Subtract 1.4 TB for two global hot spares (1 SAS, 1 NL-SAS), resulting in 15.6 TB available capacity.

A Customer Has Purchased an N8500 Clustered NAS Storage System