Sun Microsystems StorageTek StreamLine SL8500, System Assurance Manual

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Content Management
The most important aspect of an SL8500 is the need to plan and evaluate the
content with respect to the physical structure and capacities of an SL8500.
Figure 46 shows an example of how a content management philosophy might
look using the information in this chapter.
This chapter provides recommendations when evaluating workloads, including:
• Dedicate rails—separate workloads to specific rails (as in Figure 46 )
• Manage cartridges—move inactive cartridges to archival LSMs or eject them
• Group tape drives—logically install drives by type, function, and quantity
• Minimize elevator and pass-thru port activity
Using these recommendations will help to optimize and enhance performance.
Notes:
• In the following topics, LSMs and rails are considered the same thing.
• Refer to the SL8500 Best Practices Guide for more information.
Figure 46. Content Management Example
Capacity Per LSM / rail
Base 362
With:
One expansion 794
Two expansions 1,226
Three expansions 1,658
Four expansions 2090
Five expansions 2522
Total Library Capacity
Base 1,448
With:
One expansion 3,178
Two expansions 4,904
Three expansions 6,632
Four expansions 8,360
Five expansions 10,088