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What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation, go to “Completing the parts replacement” on page 65.
Installing the ThinkServer 8708EM2 RAID Adapter
Attention: Do not open your server or attempt any repair before reading and understanding the “Safety information”
on page iii
and “Guidelines” on page 17.
This topic provides instructions on how to install the ThinkServer 8708EM2 RAID Adapter (hereafter referred
to as the RAID controller within this topic) and the battery card assembly for this RAID controller.
Product description
The RAID controller enables you to create the tiered storage with SATA hard disk drives, SAS hard disk
drives, or both. With the MD2 low-prole form factor and two internal mini SAS connectors, it enables you to
attach up to 32 hard disk drives to high-density servers and systems for maximum design exibility. It also
supports all key RAID levels, including RAID 6 and RAID 60, to provide increasing fault tolerance.
Note: RAID 50 and RAID 60 are only available for more than six hard disk drives.
Your option package includes:
• ThinkServer 8708EM2 RAID Adapter
• One 400 mm (15.7 inches) mini SAS signal cable (for your server model, this cable will not be used)
• Two 630 mm (24.8 inches) mini SAS signal cables
• The user guide for the option
Note: To use the RAID controller, you need to install the ThinkServer 8708EM2 RAID Battery (product
number: 67Y2629) on the RAID controller. The ThinkServer 8708EM2 RAID Battery does not come with the
RAID controller. You need to separately order it.
Overview of the 8708EM2 RAID controller
The following illustration shows the overview of the RAID controller.
Figure36. Overview of the 8708EM2 RAID controller
1 Port 0-3
2 Port 4-7
Chapter 5. Installing, removing, or replacing hardware 45