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HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

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Upgrading the Subsystem
221HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Figure 99 on page 220 shows an example of how to remove a device from a
RAIDset membership. An event (Instance Code 02675201), reported on the
CLI, indicates that the device specified in the Device Locator field has been
removed from the RAIDset associated with the logical unit.
Note: The drive displayed in Figure 99 on page 220, shows a drive with partition
attributes different from the attributes at the RAIDset level. The drive metadata is
inconsistent.
7. Add the same device back into the RAIDset as new member by issuing the
following command:
HSG_TOP> SET RAIDset-name REPLACE=disk-name
Adding the device back into the RAIDset as a new member, clears metadata
inconsistencies in the device. After adding the device back into the RAIDset
as a new member, an event (Instance Code 021E0064), reported on the CLI,
indicates that the RAIDset is Reconstructing.
Afterwards, another event (Instance Code 02220064), reported on the CLI,
indicates that the RAIDset is finished Reconstructing and is Normalizing.
After the RAIDset begins Normalizing, you do not need to wait for that
completion unless a second device in the same RAIDset needs repaired.
8. Return the RAIDset replacement policy back to original setting.
Note: While the RAIDset is reconstructing, you will
not
be fully redundant until
normalization is
fully
complete. If the subsystem is under heavy I/O, reconstruction
can take several hours on a very large device. Reconstructing RAIDsets can be a
time-consuming process for two or more devices needing to be fixed because you
have to wait for reconstruct to complete before initiating the same operation on
another device in the same RAIDset. HP recommends that you free units from use,
take the units out of the configuration, and then place the units above the RAIDset.