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Chapter 10 Component Management
10.2 Functions in the Action Area for Component
■ For FC host interfaces
■ For iSCSI host interfaces or SAS host interfaces
5
10.2.4
Assign Global Hot Spare
This function registers a drive as a Global Hot Spare.
A Global Hot Spare is a spare drive (hot spare) that is registered in the RAID group instead of the
failed drive when a drive failure is occur. A Global Hot Spare, unlike a Dedicated Hot Spare, can
be used by all of the RAID groups.
If a drive fails, data copy (rebuild) to a Global Hot Spare starts automatically.
When a failed drive is replaced, the data is copied back from the Global Hot Spare that is
substituting for the failed drive, and the Global Hot Spare then returns to a spare drive.
→ The installation of SFP starts and the [Check SFP Installation] screen appears. After
the installation of SFP is complete, the installation of the CA port starts and the [Status
Check] screen appears. After the installation of the CA port is complete, the [Finish]
screen appears.
→ The CA port installation starts and the [Status Check] screen appears. After the
installation is complete, the [Finish] screen appears.
Click the [Done] button to return to the [Channel Adapter] screen.
•
Drives that are currently used cannot be registered as Global Hot
Spares.
•
Make sure to register a Global Hot Spare with the same or a larger
capacity than the data drives. If the Global Hot Spare capacity is smaller
than the data drive, the drive does not work as the hot spare.
•
When a mix of SAS disks, Nearline SAS disks, and SSDs are installed
together in the ETERNUS DX Disk storage system, Global Hot Spare of
each type is required. Register the Global Hot Spare with the same
capacity as the maximum capacity drive for each type.
•
To use hot spares on a priority basis, make sure to register the
Dedicated Hot Spare for a RAID group that contains important data.
Refer to
•
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.
•
Depending on the hot spare usage status, a drive with a different capac-
ity and type from the failed drive may be used.
ETERNUS Web GUI User's Guide
Copyright 2011 FUJITSU LIMITED
"10.2.6 Assign Dedicated Hot Spare" (page 438)
436
End of procedure
for details.
P2X0-1090-02ENZ0
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