CHAPTER 5 PRIMEPOWER400 Rackmount (4U) Server
5.4.3 Adding memory modules
A total of 16 memory module slots are provided on the PRIMEPOWER400 Rackmount (4U) Systemboard.
When adding memory modules the following restrictions apply.
IMPORTANT
Operation for configuration other than those described below cannot be guaranteed.
Each sequential group of 4 memory slots (#0-3, #4-7, #8-11, #12-15) must be either left empty or completely
filled with 4 identical memory modules.
5.4.4 Adding hard disk drives
Disk drive configuration
Hot-swapping hard disk drives
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Up to two hot-swappable UltraSCSI disk drives can be added to the PRIMEPOWER400 Rackmount
(4U) Server. Each of the disk drive bays is provided with an ACTIVE LED and a FAULT LED.
The ACTIVE LED lights up (green) when a hard disk drive is operating (reading or writing). The
FAULT LED lights up according to the swapping procedure when hot-swapping a hard disk drive.
Data Destruction
CAUTION
Data may be lost if hot-swapping of hard disk drives is not
performed correctly. Contact the service engineer if a hard disk
drive must be hot-swapped.
IMPORTANT
To utilize the hot-swapping functions of the hard disk drive, use the option software
(SynfinityDISK) to perform mirroring.
Hard disk drives installed on the PRIMEPOWER400 Rackmount (4U) Server are hot-swappable.
To enable hot-swapping, use the tools (machine administration) contained in the "Enhanced Support
Facility" to perform hot-swapping while monitoring the state of the ACTIVE and FAULT LEDs.
For details on how to swap hard disk drives, refer to the "Machine Administration Instructions"
included with the "Enhanced Support Facility".