Features; Components - IBM TotalStorage 300 Service Manual

attaching storage subsystems to network servers. The RAID storage controller
provides for the attachment of Fibre Channel disk drives to give superior
performance and redundancy.

Features

Each RAID storage controller includes the following standard features:
v Dual RAID Controllers
v 10 Fibre Channel 40—pin disk drives
v Dual power supplies and dual modular cooling fan assemblies
v Support for RAID levels 0, 1, 3, 5,and 10
Table 1. RAID storage controller features
General
v Modular components:
– High-capacity disk drives
– RAID controllers
– Power supplies
– Cooling fans
v Technology:
– Support for disk arrays
– Support for clustering
– Fibre Channel host interface
– Redundant data storage, cooling
system, power system, and RAID
controllers
– Hot-swap technology for drives,
power supplies, fans, and RAID
controllers

Components

The following sections show the components of the RAID storage controller.
Note: The hot-swap features of the RAID storage controller enable you to remove
Front view
The following illustration shows the components and controls on the front of the
RAID storage controller.
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IBM NAS 300 Service Guide
v User interface:
– Built-in power, activity, and fault light
emitting diodes (LEDs)
– Identification labeling on customer
replaceable units (CRUs), rear LEDs,
switches, and connectors
– Easy-to-replace drives, power
supplies, RAID controllers, and fans
Disk drive storage
Maximum drives per storage server: 10
and replace hard disk drives, power supplies, RAID controllers, and fans
without powering off the RAID storage controller. Therefore, you can maintain
the availability of your system while a hot-swap device is removed or
replaced.
Power-on LED
General-system-
error LED
Tray handle
RAID controllers
v Technology and interfaces:
– Fibre Channel: 40-pin FC disk drives
– Fibre Channel interface: Four Gigabit
Interface Converter (GBIC)
connectors for incoming and
outgoing FC cables (two GBICs on
each RAID controller)
Hot-swap
drive CRU
Drive activity LED
Latch
Drive fault LED