Scsi Hard Disk Subsystem - Fujitsu PRIMERGY TX600 User Manual

Removal/installation routines

SCSI hard disk subsystem

The SCSI hard disk subsystem consists of the hard disk modules, the SCSI
backplane and the SCSI controller.
In the PRIMERGY TX600 server you can install up to 12 hard disk modules.
Only Ultra3 SCSI drives (LVD) with a 3½ inch format, a maximum height of 1
inch and an SCA interface are used. The hard disk drives are mounted in slide-
in units, which makes it very easy to insert or remove a hard disk. The slide-in
units have a status indicator and an error indicator. The SCSI IDs of the hard
disk drive plug-in modules are permanently assigned (see also
02-TX600-61).
If a hard disk drive is operated on a RAID controller and belongs to a disk array
operated in RAID level 1 or level 5, a defective hard disk drive can be replaced
during operation (hot-swapping). To swap a hard disk drive, you need one with
the same or a higher capacity. After the replacement, the data is automatically
rebuilt on the new hard disk drive, provided the RAID controller is configured
correctly. See the information on the ServerBooks CD-ROM (section
"Controllers") or in the RAID controller manual.
To allow you to tell the capacity of a hard disk drive at a glance, the server
i
comes with several prefabricated stickers showing storage capacities.
Each hard disk module should be labeled with a sticker indicating the
capacity of the installed hard disk drive. If no suitable sticker is available,
you will also find blank stickers which you can label yourself. The stickers
are color-coded for an easier identification.
Notes on RAID levels
– RAID levels 0 and 7
Rebuild is not possible. If a hard disk fails, its data will be lost.
– RAID levels 1 and 5 without standby hard disk
Data is automatically rebuilt on the new disk when the old disk is replaced.
– RAID levels 1 and 5 with standby hard disk
A standby hard disk is automatically activated as a replacement for the
defective hard disk. The data from the defective disk is rebuilt on the standby
disk.
Ê Read the documentation for the new hard disk drive.
U41057-J16-Z146-1-76
SCSI hard disk subsystem
October 2003
page
02 TX600 83
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