Introduction
44 SL8500: Systems Assurance Guide • July 2011
E24254-01
HTTP Server
•
HTTP Server for OS/390 and z/OS optionally provides the middleware to
allow communication between the SMC (client) and a remote HSC
subsystem (server).
•
HTTP server executes as a separate subsystem on the MVS host where
the remote HSC subsystem resides.
Extended High Performance Data Mover
Extended High Performance Data Mover (ExHPDM) is utility software that
performs high-speed backup and restore of data sets by interleaving very
large block sizes on high-speed, high-capacity tape devices.
ExHPDM achieves its speed by treating all data equally regardless of the type.
Its only function is to move data from disk to very fast tape and back again.
ExHPDM’s version of the best method to move data is to enable tape devices
to move data at their maximum available speed by:
•
Using 256 Kilobyte (KB) blocks or chunks of data
•
Interleaving the 256 KB blocks onto single or multiple tape volumes.
The ExHPDM software moves blocks of data in parallel from several
concurrently executing MVS application programs. The data from the
application programs is buffered into 256 KB tape block sizes in the
application program’s address space and the 256 KB blocks are interleaved
onto single or multiple tape volumes.
Expert Library Manager
Expert Library Manager (ExLM) software manages the contents of library
storage modules (LSMs) and provides virtual tape management functions.
ExLM includes ExLM Explorer, a graphical user interface that you can use to
configure ExLM by creating configuration files instead of parameter files.
ExLM provides the following management services:
•
Maintain sufficient levels of scratch volumes by:
-
Distributing scratch volumes
-
Synchronizing the scratch status with the tape management system
•
Ejecting scratch volumes that have been marked defective by the TMS.
•
Requesting additional scratch volumes on the Enter Report.
•
Maintain sufficient levels of free cells by:
-
Ejecting excess scratch volumes and less active data volumes.
-
Distributing free cells across LSMs within an ACS.
-
Maintain sufficient levels of cleaning cartridges.
•
ExLM runs as a batch job.
Summary of Contents for StorageTek StreamLine SL8500
Page 4: ...Summary of Changes iv SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 12: ...Contents xii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 18: ...Tables xviii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 76: ...Introduction 56 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 97: ...E24254 01 Chapter 3 Site Survey Forms 77 Site Survey Forms Figure 21 Content Management Plan ...
Page 137: ...E24254 01 Chapter 4 Site Preparation 117 Site Preparation ...
Page 138: ...Site Preparation 118 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 198: ...Electrical Conversions 176 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 206: ...Comparisons 184 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 233: ...E24254 01 Appendix H Partitioning 211 Partitioning Make copies as necessary ...
Page 240: ...Partitioning 218 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 251: ...E24254 01 Appendix J Work Sheets 229 Work Sheets Figure 73 Content Management Work Sheet ...
Page 276: ...Index 254 SL8500 Systems Assurance Guide June 2011 E24254 01 ...
Page 277: ......
Page 278: ...Oracle Corporation Worldwide Headquarters 500 Oracle Parkway Redwood Shores CA 94065 U S A ...