Chapter 7 Setup
7.2 Basic Setup
ETERNUS DX60/DX80/DX90 Disk storage system User Guide
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7
Finish Configuration Wizard.
7-1
Click the [OK] button.
Configuration Wizard finishes.
End of procedure
7.2.3
Hot Spare Registration
Register the hot spare for the failure of a disk.
IMPORTANT
•
Check the factory settings and register a hot spare as required.
•
System disks cannot be registered as hot spares.
The following two types of Hot spare are available:
•
Global Hot spare
This is available for any RAID group.
•
Dedicated Hot spare
This is only available to one specified RAID group.
For a RAID group that contains important data, assign one or more
"Dedicated Hot spares", in order to preferentially improve that RAID group's
access to hot spares.
CAUTION
Do
•
Be sure to register hot spares.
•
A smaller capacity disk is not usable as a hot spare for a larger
capacity data disk.
•
When registering Global Hot spares, the capacity of at least one hot
spare should be the same as that of the largest capacity disk in the
storage system.
If a mixture of SAS disks, Nearline SAS disks, and SSDs are
installed in the storage system, separate hot spares will be required
for each type of disk. The capacity of each type of hot spare should
be the same as that of the largest capacity same-type disk.
•
When registering Dedicated Hot spares, the capacity of each hot
spare should be the same as that of the capacity of the disks in the
RAID group.
