Руководство Пользователя для Spectra Logic spectra t120

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Chapter 9.  Best Practices for Tape Media
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Handling Tape Media in Bulk
The Spectra T950 library lets you import and export tape media many times faster than 
traditional automated libraries, because it uses grouped media in TeraPack containers 
and has two TeraPack container Access Ports (TAPs) that can each handle an entire 
TeraPack container. A single TeraPack container holds 9 SDLT cartridges or 10 LTO or 
SAIT cartridges. This means that you can move up to 18 or 20 tapes at once, depending 
on the media type.
Importing Tape Media
In a traditional automated library, you use an EE port to import media. This typically 
requires that you load tapes one by one into the slots in the port. Then you close the 
EE port and wait while the backup software instructs the library to move cartridges 
into the library’s interior. When the EE port is empty, you may need to repeat this 
again, possibly multiple times, to get the rest of the tapes imported.
To import tapes into a Spectra T950 library, you put an already loaded TeraPack 
container into the library through a TAP. The library pulls in the TeraPack container 
and places it in a chamber in the library.
The imported tapes are moved into the EE pool, which has already been configured for 
this partition. To the library, this is like putting multiple tapes into an expanding or 
contracting EE port. The difference is that you do it all at once, instead of filling up 
individual slots and waiting until the library empties them, then filling the EE port 
again—a 90 percent time savings.
Importing tapes into the library’s EE pool appears to the backup software as loading 
the EE port. You then use the backup software to move tapes into the library’s storage 
pool, where the tapes are used for backup tasks.