Hot Spare Registration - Fujitsu Eternus DX60 User Manual

Chapter 4 Setup
> 4.3 ETERNUS DX60/DX80 Setup
4.3.4

Hot Spare Registration

Register the hot spare for the failure of a disk.
IMPORTANT
P3AM-3042-03ENZ0 ETERNUS DX60/DX80 Disk storage system User Guide
• Check the factory settings and register a hot spare as required. When
changing the factory default setting, delete the factory setting (volume,
RAID group, and LUN mapping) and then register the hot spare. For
details on deleting the setting, refer to "ETERNUS DX60/DX80 Web GUI
User Guide".
• 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.
For details on hot spares, refer to "ETERNUS DX60/DX80 Web GUI User
Guide".
Do
CAUTION
• Be sure to register hot spares.
• The capacity of each hot spare should be the same as that of the
largest capacity disk in the storage system or RAID group.
If a mixture of SAS disks, Nearline SAS disks, and SSDs is installed
in the storage system, separate hot spares will be required for each
type of disk. Again, the capacity of each type of hot spares must
equal or exceed that of the largest capacity same-type disks.
A smaller capacity disk is not usable as a hot spare for a larger
capacity data disk.
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