Cartridge import and export performance
The cartridge import and export rates indicate the number of tape cartridges that can be imported and exported in an hour.
The import and export rates will vary depending on the following factors:
- How busy the accessor is with other activities (all activity is interleaved so that no activity can be "starved").
- How quickly the operators fill the I/O slots or empty the magazines from the I/O stations.
- How many operators are inserting cartridges or emptying the magazines.
The maximum rates listed in Table 1 assume:
- Minimal mount/demount activity.
- Less than 90 seconds for the operator to introduce each magazine into the I/O station or empty each magazine from the I/O station.
- For dual-accessor libraries, two operators inserting magazines into both accessor zones or emptying magazines from both accessor zones simultaneously.
| Maximum imports per hour | Maximum exports per hour (8 to 18 frames; exports from tier 0 and tier 1) | |
|---|---|---|
| Single-accessor library (up to 8 frames) | Dual-accessor library (8 to 18 frames) | |
| Over 600 cartridges | Over 1200 cartridges | Over 1200 cartridges |