HP Data Protector MOM Configuration and Troubleshooting Guide

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Troubleshooting hints & tips
Verifying the MoM configuration
When merging to a CMMDB, make sure the clients show the MMDB is used on the MoM server.
Figure 26: Configuring CMMDB
Note: The status (Up and running) is shown correctly only after reconnecting to the Cell
Manager. There is no status polling for status.
Viewing media on Cell Managers
It is possible for the media of a shared device to show up on one host as formatted and on the
other as a question mark:
Host 1
Host 2
This is normal, since although the device is shared the IDB is different (unless a CMMDB is used)
and so one host does not necessarily have the same information about the slots/medium as the
other.
Using multipath devices
It is possible for media to appear to be fine when scanning the slot, but for an error with one of
the devices to be reported when a backup is executed:
[Major] From: [e-mail] "muggy_ESL" Time: 4/15/2009 10:05:08
AM Host for device QUANTUM: SDLT320_1_muggy(2) not found.
This is not an issue, but rather a desired functionality. From Figure 27:, you can see that a
Multipath device is used. Multipath devices and libraries can have several paths on multiple hosts.
As a result, the client information on the General tab would be irrelevant or insufficient, and so it
is disabled and moved to the Control/Drives tab, where hosts are defined together with their
paths.
Status Up and Running