Using Unrecognizable Volumes

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Using Unrecognizable Volumes

ISM does not recognize storage volumes without a label.

ISM does not recognize the following volume labels and considers these storage volumes as unlabeled:

Storage volumes that are labeled with something other than an ISM label
Storage volumes with ISM labels that were written in a density different from that of the device in which they are currently loaded
For example, if you performed ISM backups on a new 8-millimeter tape drive, an older 8-millimeter tape drive might not be able to read the volumes from the newer device because the device uses a different density to write the data.

If ISM does not recognize a storage volume, relabel the storage volume. For details, see Relabeling a Volume.

Warning:

Be careful about sharing non-ISM storage volumes or ISM volumes written in different densities among different backup devices if you use the Automatic Media Management option. Otherwise, you might potentially relabel and overwrite valuable data.

Adjusting the number of active data streams on the ISM server can also affect how ISM writes data to the storage volumes. For more information, see Setting the Number of Parallel Data Streams.