Specifications - IBM TotalStorage DS300 Best Practices Manual

management console with an extensive online help library. Configuration wizards
simplify initial storage setup. IBM ServeRAID Manager is designed to support
most common operating environments for workgroup applications, including
Microsoft Windows, Novell NetWare and Linux platforms.

3.2 Specifications

On both the DS300 and DS400, each controller runs on an Intel® 733 Mhz
xScale 80200 Processor. It supports dual 100 Mhz PCI-X, DDR200 DDRAM
memory, 32 MB compact flash and Gb ethernet. The second DDRAM memory
DIMM is dedicated to the RAID chipset and not accessible by the xScale
processor.
Each controller also contains a dual port 82545 Ethernet chipset. Port 1 of the
chipset is used for management purposes and can auto detect 10, 100 or 1Gb
transfer speeds. Port 1 is listed in the management software as interface0. Port 2
is used for the internal controller communication channel. It is forced to 1Gb and
cannot be changed.
I/O data is processed by an Adaptec 7942 chipset which contains its own
processor, memory and XOR. It supports RAID levels 0, 1, 10, 5 and 50. It also
monitors the battery status of the card. A failed battery status will generate an
alert. Cache battery backup is a Li Ion battery that can hold data for at least 72
hours. A DS300 controller has a single Adaptec 7942 chipset while a DS400
controller has two.
There are two separate SCSI buses on the midplane. Each bus is driven by a
separate channel of the Adaptec 7942 chipset. Channel 0 contains drives 9
through 15, while channel 1 contains drives 0 through 5 and 8.
Table 3-1 Specifications of IBM TotalStorage DS300 and DS400 disk subsystems
Product DS300
Machine/Models 1701-1RL, 1701-1RS, 1701-2RD
Platform support Windows 2000, Windows 2003, Linux
Host connectivity 1-2 1GB iSCSI per controller
SAN support Switched Ethernet
Availability Fault Tolerant, RAID, Redundant
features Hotswap Power,
Hotswap drives
DS400
1700-1RS, 1700-2RD
Windows 2000, Windows 2003, Linux
Two 2GB Fibre Channel per controller
Direct, FC-AL, Switched Fabric
Fault Tolerant, RAID, Redundant
Hotswap Power,
Hotswap drives
Chapter 3. Components overview
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