Open Systems Features And Functions; Open Systems Middleware; Logical Unit Mapping - Hitachi AMS 2100 Hardware Manual

The AMS 2100/2300 RAID specifications are shown in
Item
RAID
Configuration

Open systems features and functions

The AMS 2100/2300 offers many features and functions specifically for the
open-systems environment. The AMS 2100/2300 also supports important
open-system functions such as fibre-channel arbitrated-loop (Fibre
Channel-AL) and fabric topologies, command tag queuing, multi-initiator
I/O, and most industry-standard software and middleware products which
provide host fail-over, I/O path fail-over, and logical volume management
functions.

Open systems middleware

Open-system middleware products provide host failover capability, I/O path
failover support, and logical volume management in the open systems
environment. Middleware is not usually supplied as part of the array's basic
operating system.

Logical unit mapping

Each logical unit can be assigned to multiple Fibre Channel ports to provide
I/O path failover with the middleware support.
Table 1-11: AMS 2100/2300 RAID Specifications
RAID
level
SAS/SAS(SED)/SAS7.2K/Flash drives can be mounted with RAID levels
0,1, 5, 6, & 1+0.
SATA drives can be mounted only with RAID levels 1, 5, 6, & 1+0
RAID 0 2D to 15D
SATA drives do not support RAID 0.
RAID 1 1D+1D
RAID 5 2D+1P to 14D+1P
RAID 6 2D+2P to 13D+2P
RAID 1+0 2D+2D to 7D+7D
Introduction
Hitachi AMS 2100/2300 Storage System Hardware Guide
Expansion Units and High
Base Unit Capacity Expansion Unit
2D to 16D
2D+1P to 15D+1P
2D+2P to 28D+2P
2D+2D to 8D+8D
Table 1-11.
(range for setup)
1–23