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Chapter 2 Preparations
1.22
Hot-plug Hard Disk Drive
The server can contain HDD trays to connect with hard disk drives.
A hard disk drive mounted on a dedicated tray can be purchased. Install the hard disk drive on the server with
it mounted on the tray.
3.5-inch hot-swap HDD cage can contain four disk drives per one HDD cage.
2.5-inch hot-swap HDD cage can contain eight disk drives per one HDD cage.
A unique port number is assigned to each slot.
Note the following precautions to install hard disk drives.
You may need to change jumper switch setting or cable connection to build a RAID system.
In 3.5-inch HDD cage, hard disk drives having different capacities, interface types, or rotational speeds
cannot be installed together.
In 2.5-inch HDD cage, hard disk drives or SSD having different capacities, interface types, or rotational
speeds can be installed together, if the following conditions are satisfied:
Mixture of SAS HDD, SATA HDD and SAS SSD in 2.5-inch HDD cage
You need to prepare the followings:
One RAID Controller or one RAID Controller and one SAS Expander Card
One to three 2.5-inch HDD cage
Two to six internal SAS cables
You need to prepare RAID Controller if internal disk drives of different types are installed together.
In the specific RAID group (pack), HDD and SSD cannot be installed together.
Three types of internal drives cannot be installed together under the specific RAID Controller (in the
same HDD cage).
To avoid mixture of different types of disk drives in specific pack, specify a hot spare disk for the disk
drive of the same type.
When several RAID Controllers are to be installed, they must be of the same model.
With specific RAID Controller, connecting disk drives extending over several HDD cages is not
allowed.
134
Important
Use hard disk drives specified by NEC. Installing a third-party hard disk
drive might cause a failure of the server and the hard disk drive.
Express5800/T120e User's Guide
1. Installing Internal Optional Devices
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