the battery. This might take a few minutes, after which the startup process
continues. This is a one-time occurrence.
Important: You must allow the initialization process to be completed. If you do
not, the battery will not work, and the server might not start.
The battery comes partially charged, at 30% or less of capacity. Run the server
for 4 to 6 hours to fully charge the controller battery. The LED just above the
battery on the controller remains lit until the battery is fully charged.
Until the battery is fully charged, the controller firmware sets the controller
cache to write-through mode; after the battery is fully charged, the controller
firmware re-enables write-back mode.
2. When you restart the server, you will be given the opportunity to import the
existing RAID configuration to the new ServeRAID-8k SAS Controller.
Installing a hard disk drive
Locate the documentation that comes with the hard disk drive and follow those
instructions in addition to the instructions in this chapter.
Important: Do not install a SCSI hard disk drive in this server; install only SAS hard
disk drives.
The following notes describe the type of hard disk drive that the server supports
and other information that you must consider when installing a hard disk drive:
v The server 3.5-inch models support six slim 3.5-inch hard disk drives installed on
Ultra-Slim hard disk drive trays for 3.5-inch drives. For a list of supported 3.5-inch
hard disk drives, see http://www.lenovo.com/thinkserver.
v The server 2.5-inch models support eight 2.5-inch hot-swap hard disk drives
installed on Ultra-Slim hard disk drive trays for 2.5-inch drives. For a list of
supported 2.5-inch hard disk drives, see http://www.lenovo.com/thinkserver.
v All hot-swap drives in the server should have the same throughput speed rating.
Mixing hard disk drives with different speed ratings will cause all drives to
operate at the lower throughput speed.
v The ID that is assigned to each bay is printed on the front of the server.
The following illustrations show how to install a hot-swap hard disk drive.
3.5-inch drives
1 Filler panel 3 Hard disk drive
2 Tray handle
Chapter 2. Installing optional devices 47
