Notes On Configuring Raid - Fujitsu primergy TX150 User Manual

2.3.2 Notes on Configuring RAID

RAID can be configured with hard disk units connected to the SCSI controller on the baseboard.
Configurable RAID level differs depending on whether the onboard SCSI controller or the SCSI array
controller card is used to configure the array system. Take the following notes when you configure a
RAID system.
■ When Configuring the Array System with the Onboard SCSI
Controller
●
Hardware Configuration
• Only internal hard disk units can be used. Although up to four hard disk units can be installed in the
server, only two hard disk units can be used when using the onboard SCSI controller.
• Be sure to use hard disk units of the same model and with the same capacity.
●
Array Configuration
The server functions as the onboard SCSI array controller by configuring the array system with the
onboard SCSI controller. Configurable RAID level is only RAID1. The array system is configured by
two internal hard disks. For details, refer to "Onboard SCSI RAID User's Guide".
■ When Configuring the Array System with SCSI Array Controller Card
(PG-140D1)
●
Hardware Configuration
• Be sure to install the SCSI array controller card (PG-140D1).
• Only internal hard disk units can be used. Up to four hard disk units can be installed in the server.
More units than the maximum cannot be configured.
• Be sure to use hard disk units of the same model and with the same capacity.
• One hot spare (standby disk) can be configured. However, it cannot be configured for RAID0. When
the hot spare disk is set to "Use", the number of hard disk units actually installed must be the number
set above plus 1.
●
Array Configuration
The following RAID level can be configured. The number of units that can be set vary by RAID level.
For more details, refer to the manual which comes with the SCSI array controller card.
• RAID level 0: 1 to 4 units
RAID level 1: 2 units
RAID level 5: 3 to 4 units
RAID level 0+1: 4 units
PRIMERGY TX150 S4 User's Guide
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