Arranging cartridges in the dcm – Spectra Logic 2K User Manual

Page 51

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Chapter 6. Library Stacker Mode

51

Arranging Cartridges in the DCM

Because the library only distinguishes between individual cartridges by their order in
the DCM, arrange the cartridges in the DCM following these guidelines:

Empty Top Slot

Leave the top slot empty. When the library stacker completes operations

with a cartridge, it moves the used cartridge to the highest available slot and removes
the cartridge in the next lower slot. By leaving the top slot empty, you assure that a
space remains between the cartridges used and cartridges not used by the stacker, thus
making it easier to tell the difference when you want to remove the DCM.

Cartridge Order

Install the cartridges in the order you want them to be used. The cartridge

at the top of the DCM is the first cartridge loaded. Make sure that the write protect tab
on all cartridges is set to REC

before attempting a write operation.

Do Not Overload

Do not overload the DCM with cartridges. After a store completes, you

don’t want to mistake cartridges that contain data for cartridges that are empty. Use a
maximum of 14 cartridges in a 15-cartridge library or 29 cartridges in a 30-cartridge
library.

Do Not Underload

Do not under-load the DCM with cartridges. Most stacker scripts return

an error when the media runs out of room and require that the entire operation (or
series of operations) be repeated.

Do Not Use for Cartridge Storage

Do not store cartridges in the library stacker. All cartridges

within the stacker (not write-protected) are fair game for stacker read or write
operations.

Label Cartridges

When storing data cartridges, label the cartridges carefully. Include the

date, data type, and script name. Additional DCMs may be useful for organized storage.
See Purchasing Additional Library Accessories on page 64 for ordering information.

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