Content Management
136 SL8500: Systems Assurance Guide • July 2011
• E24254-01
■
Dedicating Rails
•
Ideally, try to confine each workload to a single LSM to reduce
pass-thru activity—this improves performance.
•
Allocate rails to each major application.
For example
: HSM and VSM both need tape drives and media.
Plan separate rails for these types of applications.
•
Using rails that are adjacent to each other.
This provides a shorter distance for the pass-thru operation.
•
Pass-thru’s are either:
-
Vertical:
using the elevator in the same library, or
-
Horizontal:
using pass-thru ports (PTPs) to a different library
Media types
Scratch cartridge pools
Adequate free cells
•
Make sure the rails have compatible cartridges for the tape drives
•
Make sure the rails have enough
scratch cartridges
•
Make sure there are adequate free cells so cartridges can
float
upon
dismount
•
Avoid using the top rail to support an application that requires a
significant number of ejects and enters. To enter and eject cartridges
from LSM 0 requires elevator pass-thru activity.
•
Consider using the top rail as an archival LSM—one that uses
less
active
tapes; or
•
Use the top rail as an LSM with
very active
tapes that requires fast
access–using T9840C tape drives, with few enters and ejects.
•
Whenever possible, enter cartridges through the cartridge access
ports (CAPs).
•
When planning the workloads, place applications that require
significant enters and ejects on rails adjacent to CAP magazines.
The SL8500 is not just another library. The SL8500 architecture is
four separate library storage
modules
that work together in parallel (LSM / rail). This architecture offers extremely flexible and
scalable configurations that can
simplify
automated tape applications.
Instead of distributing cartridges and tape drives evenly across all the rails...
Look at it from a business perspective and logically plan each individual LSM / rail to meet the
customer’s specific needs and business requirements. Allocate separate tape application
workloads to specific library storage modules.
Recommendations include:
❏
Separate rails
If this is not possible because the workload is too large, consider
breaking the workload into smaller segments that do fit.
❏
Combine workloads
If you are
not
able to easily separate the workload, consider:
❏
Populate the rails
When populating the rails:
❏
Use of the top rail
❏
Enters and Ejects
Содержание StorageTek StreamLine SL8500
Страница 4: ...Summary of Changes iv SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 12: ...Contents xii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 18: ...Tables xviii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 76: ...Introduction 56 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 97: ...E24254 01 Chapter 3 Site Survey Forms 77 Site Survey Forms Figure 21 Content Management Plan ...
Страница 98: ...Site Survey Forms 78 SL8500 Systems Assurance Guide July 2011 E24254 01 Figure 21 Content Management Plan ...
Страница 137: ...E24254 01 Chapter 4 Site Preparation 117 Site Preparation ...
Страница 138: ...Site Preparation 118 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 163: ...E24254 01 Appendix A Content Management 141 Content Management Figure 47 Content Management Work Sheets ...
Страница 164: ...Content Management 142 SL8500 Systems Assurance Guide July 2011 E24254 01 Figure 47 Content Management Work Sheets ...
Страница 198: ...Electrical Conversions 176 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 206: ...Comparisons 184 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 233: ...E24254 01 Appendix H Partitioning 211 Partitioning Make copies as necessary ...
Страница 240: ...Partitioning 218 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Страница 251: ...E24254 01 Appendix J Work Sheets 229 Work Sheets Figure 73 Content Management Work Sheet ...
Страница 276: ...Index 254 SL8500 Systems Assurance Guide June 2011 E24254 01 ...
Страница 277: ......
Страница 278: ...Oracle Corporation Worldwide Headquarters 500 Oracle Parkway Redwood Shores CA 94065 U S A ...