Chapter 2 Component Management
2.3 Assign Dedicated Hot Spare
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED P2X0-1270-13ENZ0
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The procedure to register a Dedicated Hot Spare is as follows:
1 Select a drive (multiple selections can be made) that is to be used as a Dedicated Hot Spare
and click [Assign Dedicated HS] in [Action].
2 Select which RAID group to use the selected drive as a Dedicated Hot Spare for and click the
[Assign] button.
A confirmation screen appears.
• When the failed drive and the Dedicated Hot Spare are switched, a Dedicated Hot Spare with the same
capacity as the failed drive is used on a priority basis. If there is no Dedicated Hot Spare with the same
capacity, a Dedicated Hot Spare with a larger capacity than the failed drive is used.
• If the Dedicated Hot Spare is registered for a RAID group to which a failed drive belongs, the Dedicated
Hot Spare is used before the Global Hot Spare. If there is no unused Dedicated Hot Spare and the drive
fails, the Global Hot Spare is used.
• Hot Spares can be registered in any slots of the CEs (only for the ETERNUS DX60 S3/DX100 S3/DX200 S3
and the ETERNUS DX200F) and the DEs.
• To use the Copybackless function, the rebuild destination Hot Spare must satisfy some conditions. Refer
to "1.4.4 Setup Subsystem Parameters" (page 39)
for details.
• When registering an SSD as a Dedicated Hot Spare, select an SSD with the same type (SSD-M/SSD) as the
target RAID group. The type of SSD that configures the target RAID group can be checked from the [RAID
Group Detail] screen. Refer to "RAID Group Detail (Drives)" in "ETERNUS Web GUI User's Guide (Operation)"
for details.
Select the same type of drives that configure the target RAID group. If multiple types of drives are
selected, the [Assign Dedicated HS] is not available.
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