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86 IBM ^ xSeries 440 Planning and Installation Guide
The FAStT200 High Availability (HA) Storage Server, which contains two
RAID controllers and can therefore provide higher availability.
Both models feature hot-swap and redundant power supplies and fans and you
can install up to 10 slim-line or half-high FC disk drives. If you need to connect
more than 10 disks, you can use the EXP500 FC storage expansion enclosures.
Each EXP500 can accommodate 10 additional disk drives, and up to five
EXP500s are supported on the FAStT200. This means that the maximum
supported number of disk drives is 60.
The use of hot-swappable and redundant components provides high availability
for the FAStT200 Storage Server. A fan or a power supply failure will not cause
downtime and such faults can be fixed while the system remains operational. The
same is true for a disk drive failure if fault-tolerant RAID levels are used. With two
RAID controller units and proper cabling, a RAID controller or path failure will not
cause loss of access to data.
Each RAID controller has one host and one drive FC connection. The FAStT200
HA model can use the two host and drive connections to provide redundant
connection to the host adapters and to EXP500 enclosures. Each RAID
controller unit also contains 128 MB of battery-backup cache.
The IBM TotalStorage FAStT500 Storage Server
The FAStT500 Storage Server is a 4U rack-mountable Fibre Channel RAID
controller device. It provides the levels of performance, availability, and
expandability needed to satisfy high-end storage requirements. You would
typically use the FAStT500 Storage Server in advanced cluster environments
and possibly with heterogeneous operating systems running on the host
systems. Another application would be where multiple servers are being
consolidated onto one or more x440 systems and there is a requirement to
centralize storage for these systems.
The FAStT500 Storage Server features two RAID controller units, redundant
power supplies, and fans. All these components are hot-swappable, which
ensures excellent system availability. You use the EXP500 external storage
expansion enclosures to install the FC disk drives and you can connect up to 22
EXP500 enclosures to the FAStT500. This means a total of up to 220 disk drives.
Tip: The FAStT200 ships with IBM FAStT Storage Manager 7.10. This version
is not supported on the x440. See the following for details:
http://www.pc.ibm.com/qtechinfo/MIGR-41745.html
Download the latest version from http://www.pc.ibm.com/support.