StorageWorks EK-SMRAB-IG, Руководство по установке

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Appendix D. Configuring STRIPEsets, MIRRORsets, and Striped MIRRORsets
EK–SMRAB–IG. B01 D–5
D.4 Add Individual Disks as Logical Units (Configuration Example 2)
Before you can put an individual disk into service, it must be initialized:
HSZ20> INITIALIZE DISK120
HSZ20> INITIALIZE DISK220
If you require individual Disks to be available to the host as Logical Units, you must
now identify the Disks as host logical units by using the ADD UNIT command.
HSZ20> ADD UNIT D1 DISK120
HSZ20> ADD UNIT D2 DISK220 SAVE_CONFIGURATION
In this example, disk DISK120 and DISK220 are identified to the host as units D1
(Target 0, LUN 1) and D2 (Target 0, LUN 2) respectively.
D.5 Add Drives to the Spareset
If a disk in a RAIDset or MIRRORset goes bad, the controller will replace it with a disk
from the Spareset, if one exists. If the Spareset is empty, a RAIDset will run “reduced,”
and you should replace the disabled disk as soon as possible. For maximum availability,
you should keep at least one drive in the spareset.
The Spareset always exists in the controller configuration, even if there are no drives
assigned to it. Assign drives to the Spareset with the ADD SPARESET command.
HSZ20> ADD SPARESET DISK130
In this example, DISK130 was assigned to the Spareset.
D.6 Failed Set
Failed drives are automatically added in the FAILEDSET. Failed drives that are replaced
with new drives that do not contain metadata can be automatically placed in the
SPARESET. To enable this feature, use the command:
HSZ20> SET FAILEDSET AUTOSPARE
You can remove or insert devices at any time, with the following restrictions:
•
Do not remove or insert devices before the CLI prompt appears during a controller
initialization.
•
Do not insert devices while the controller is still recognizing a device removal
(indicated by flashing LEDs).
•
Do not remove or insert devices while the controller is running a local program such
as DILX or VTDPY.
•
Wait 50 seconds after inserting one disk drive before inserting a second disk drive.