
Defining the DSN Catalog BIM-EPIC System Datasets
2-20 BIM-EPIC Installation and System Guide
3. Use the following table to determine the number of tracks or FBA blocks to allocate for
your DSN Catalog.
Device Number of Records
Type 5,000 7,500 10,000 20,000
3330 105 157 209 418
3340 158 236 314 626
3350 79 118 157 313
3375 40 59 78 157
3380 32 48 63 126
3390 27 40 53 106
9345-1 20 30 40 80
9345-2 14 20 26 52
FBA 2516 3766 5016 10016
The minimum size of the DSN Catalog on a CKD device is 1 cylinder. On an FBA device, the
minimum size is 72 FBA blocks.
Determine which disk volume will be used for the DSN Catalog. Consider the following:
•
The disk volume must be available to all machines running BIM-EPIC if the catalog is
to be shared.
• For performance reasons, the DSN Catalog should be located on a volume which does
not contain heavily accessed datasets such as POWER files.
•
The DSN Catalog must be a single extent dataset.
• The DSN Catalog and Recorder File should be placed on different physical devices.
If you will be sharing your DSN Catalog with CA-EPIC for CMS, it must reside on a disk
volume which is owned by VSE (with a VSE VTOC) and is also available to CMS. See 2-68
in this manual for more information.
If the DSN Catalog is to be updated by CA-EPIC for CMS, ensure that the disk volume has
only one active path to VM/CP.
The Recorder File provides backup security for the DSN Catalog. If the DSN Catalog and
Recorder File are both located on the same device and that device is lost or damaged,
information vital to recovery of the DSN Catalog is lost.
Placement
Considerations
WARNING!
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