Cisco Headend System Release 2.7 Guide De Montage
Chapter 2 DNCS Pre-Upgrade Procedures
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Examine Mirrored Devices
Before you disable the disk mirroring functions in preparation of an upgrade, you
should examine the status of the mirrored drives on your system. All the disk
mirroring functions must be working normally before proceeding with the upgrade.
should examine the status of the mirrored drives on your system. All the disk
mirroring functions must be working normally before proceeding with the upgrade.
CAUTION:
If the disk mirroring functions of the DNCS are not working properly before
the upgrade, you may not be able to easily recover from a failed upgrade.
If the disk mirroring functions of the DNCS are not working properly before
the upgrade, you may not be able to easily recover from a failed upgrade.
Examining the Mirrored Devices
Complete the following steps to examine the status of the mirrored drives on your
DNCS.
1 If necessary, open an xterm window on the DNCS.
2 Type metastat | more and then press Enter. The system displays the status of
DNCS.
1 If necessary, open an xterm window on the DNCS.
2 Type metastat | more and then press Enter. The system displays the status of
all of the metadevices on the DNCS.
Note: Press the Spacebar, if necessary, to page through all of the output.
Note: Press the Spacebar, if necessary, to page through all of the output.
3 Check the conditions of the following two items and then answer the question in
step 4.
The designation Okay appears in the State column next to each metadevice.
If the system is an E450, verify that all Hot Spares indicate a status of
Available.
Available.
4 Are the conditions listed in step 3 “true”?
If the system is an E450 and both conditions listed in step 3 are true, go to
Verify that the Boot Device is Correctly Configured (on page 29).
Verify that the Boot Device is Correctly Configured (on page 29).
If the system is a V880 or V890, is the state of each metadevice Okay?
If both conditions are not true for an E450, or if the State on the V880 or V890
is not Okay, call Cisco Services for help in resolving these issues with the
metadevices.
is not Okay, call Cisco Services for help in resolving these issues with the
metadevices.