NEC EXP320J, User Manual

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Windows Setup and Operation 3-3
[Cautions for using the RDR function]
1.
RDR can be set only to the disks inserted into the built-in slots of NEC Express5800/ft series.
2.
Be sure to specify RDR to all disks inserted to the built-in slots and make duplex settings.
3.
RDR can be set only to basic disks.
If a span volume or stripe volume is needed, make settings of RDR to a basic disk and then
change the disk to a dynamic disk from [Disk Management].
4.
The disks to set RDR must have the same capacity and must be new or physically formatted.
(For physical format, refer to “SAS BIOS” in Chapter 4 and perform Format Disk using
Disk Utilities.)
5.
If the system is shut down (or restarted) while the mirror is broken, or a long time (30 minutes
or longer) has passed after the mirror is broken, the mirror resynchronization target will be the
entire disk.
For example, if the mirroring has been broken due to a PCI module failure, when you shut
down the system and replace the PCI module in such a state, the entire area of the disk needs
to be resynchronized.
6.
You must insert a new disk or replace a disk while the server is powered on.
7.
Create a data disk partition after configuring the RDR. If you create a data disk partition
before configuring the RDR, the partition’s drive letters may be deleted when the RDR is
configured.