External Storage Connectivity - IBM System x3850 X5 Implementation Manual

Latch
Edge clips
Figure 3-25 ServeRAID M5015 SAS/SATA Controller
RAID-6, RAID-60, and encryption are a further optional upgrade for the M5015 through the
ServeRAID M5000 Series Advance Feature Key or the Performance Accelerator Key.

3.9.6 External storage connectivity

The ServeRAID M5025 offers two external SAS ports to connect to external storage.
Table 3-28 lists the cards and support cables and feature keys.
Table 3-28 External ServeRAID card
Option
46M0830
39R6531
39R6529
46M0930
The M5025 has two
Eight external 6 Gbps SAS 2.0 ports implemented through two four-lane (x4) connectors.
Two mini-SAS external connectors (SFF-8088).
Six Gbps throughput per SAS port.
800 MHz PowerPC processor with LSI SAS2108 6 Gbps RAID on Chip (ROC) controller.
PCI Express 2.0 x8 host interface.
512 MB onboard data cache (DDR2 running at 800 MHz).
Optional battery
Feature code Description
0094 IBM 6Gb ServeRAID M5025 External RAID
3707 IBM 3m SAS External Cable for ServeRAID M5025 to an
EXP2512 (1747-HC1) or EXP2524 (1747-HC2)
3708 IBM 1m SAS External Cable for interconnection between
multiple EXP2512 (1747-HC1) or EXP2524 (1747-HC2)
5106 IBM ServeRAID M5000 Advance Feature Key: Adds RAID-6,
RAID-60, and SED Data Encryption Key Management to the
ServeRAID M5025 controller
external
SAS 2.0 x4 connectors and supports the following features:
The M5015
installs behind
the disk cage and
is shown here
This card installs
in a special PCIe
slot, and it is not
installed in one of
the seven PCIe
slots for other
expansion cards.
Chapter 3. IBM System x3850 X5 and x3950 X5
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