Cisco Headend System Release 2.7 User Guide
10-2
Detach and Attach Submirrors With the mirrState Utility
749640 Rev D
Run the mirrState Utility
Introduction
Select one of the following options when you run the mirrState utility:
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•
To disable the disk mirroring functions on the Sun Enterprise 450 or Sun Fire 880
DNCS, go to Detaching Mirrored Disks.
•
To re-enable the disk mirroring functions on the Sun Enterprise 450 or Sun Fire
880 DNCS, go to Re-Attaching Mirrored Disks.
•
To obtain the version number of the mirrState utility currently loaded onto the
DNCS, go to Determining the Version Number of the mirrState Utility.
Important: The mirrState utility is restricted for use on the Sun Enterprise 450 and
Sun Fire 880 DNCS, only. If the mirrState utility is run on a DNCS using another
platform (for instance, a Sun Enterprise 250), the system will display a message
stating that no metadatabases are found and the utility will exit.
Detaching Mirrored Disks
Follow these instructions to detach the mirrored disks on the Sun Enterprise 450 or
Sun Fire 880 DNCS.
1.
Has the output of the check_metadevices utility revealed any errors
associated with the metadevices on your system?
Note: The check_metadevices utility was loaded onto your system when you
Note: The check_metadevices utility was loaded onto your system when you
installed DBDS Utilities. Refer to Chapter 16, Monitor the Status of System
Metadevices With the check_metadevices Utility, of the DNCS Utilities
Installation and Operation Guide for information on the check_metadevices
utility.
•
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If yes, correct those errors before proceeding any further.
Important: The metadevices on your system must be working correctly
Important: The metadevices on your system must be working correctly
before you can detach mirrored disks.
•
If no, go to step 2.
2.
Follow these instructions to log in to an xterm window on the DNCS as root
user.
a) Type su - and then press Enter.
a) Type su - and then press Enter.
Result: The password prompt appears.
b) Type the root password and then press Enter.
3.
Type mirrState.ksh -d and then press Enter.
Result: The system displays the following message:
WARNING!!
Result: The system displays the following message:
WARNING!!
Proceeding beyond this point will DETACH all Controller 2 submirrors.
Are you certain you want to proceed?
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