Requirements for using cascaded drive pools
In order to cascade tape
drives, the tape drives must be the same drive type, such as DLT
32K. To determine the drive type, look in the tape drive's property
page.
See Viewing storage device
properties.
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Caution:
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If a
tape drive that does not support hardware compression is added to a
cascaded drive pool, the hardware compression option on all other
tape drives in that pool is automatically disabled. You can enable
the hardware compression option on the other tape drives again, but
the pool will then have mixed compression, which could make restore
operations difficult.
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Backup-to-disk folders
cannot be placed in cascaded drive pools.
