Array Modules (1Tb And 2Tb Hard Drives); Figure 10 Array Module Raid Sets (1Tb And 2Tb Hard Drives) - Quantum DXi8500 User Manual

Array Modules (1TB and
2TB Hard Drives)
Figure 10 Array Module RAID
Sets (1TB and 2TB Hard Drives)
Quantum DXi8500 User's Guide
Each Array module (RAID) contains 16 SATA hard drives and provides a
usable capacity of 10TB (with 1TB drives) or 20TB (with 2TB drives). Up
to nine Array modules can be added in the base rack. A tenth Array
module can be added in an expansion rack. For DXi8500 systems with
1TB drives, from 1 to 10 Expansion modules can be added to an
expansion rack. For DXi8500 systems using 2TB drives, no Expansion
modules are used.
Every module supports RAID 6 with two hot spares per tray (see
Figure 10).
Array modules — RAID set characteristics:
• The first two drives in each Array module (Drive 1 and Drive 2) are
the global hot spares for that enclosure.
• The remaining hard drives in each Array module are configured into
two RAID sets:
• First RAID set — Drives 3 through 9 are configured into RAID 6
(5+2)
• Second RAID set — Drives 10 through 16 are configured into
RAID 6 (5+2)
Global Hot Spares
1st RAID set (5 + 2)
Drives 3 through 9
Chapter 1: DXi8500 System Description
DXi8500 Storage Systems
2nd RAID set (5 + 2)
Drives 10 through 16
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