How Many CA DRAS Started Tasks are Needed for CA Web Viewer 12.1?

Products

• Output Management Web Viewer

Issue/Introduction

We currently have only 1 CADRAS started task running, but we have thought about starting and configuring a second instance. Before we do this, is there a recommended number of nstances to have running?

 

Environment

CA DRAS Release : 14.0

Component : CA OUTPUT MANAGEMENT WEB VIEWER FOR ALL PLATFORMS 12.1

WBVLUW

Resolution

You can calculate the number of concurrent users that a CA DRAS server supports using the following formula:

You will need the following information for this calculation:

1. The number of index file data sets(extents) for the largest CA View database _______

2. The number of data file data sets(extents) for the largest CA View database _______

3. The number of data sets(extents) for the largest CA Deliver database  _______

4. The maximum available below-the-line storage in bytes   ______________

Solve for Data sets, then use that value to solve for usedbelowthelinestorage, then use that value to solve for maxusers per DRAS server.

Data sets =

(the number of index file data sets(extents) for the largest CA View database) + (number of data file data sets(extents) for the largest CA View database) + (number of data sets(extents) for the largest CA Deliver database)

 usedbelowthelinestorage =

((((Data sets + 81) / 41 and drop remainder) * 8192) + 1200) + ((Data sets * 388)

maxusers =
((maximum available below-the-line storage in bytes - 131072) / usedbelowthelinestorage) and drop remainder

The following example shows 12 Megabytes of free below the line storage:
• Data sets = (3) + (30) + (2) = 35
• usedbelowthelinestorage = ((((35 + 81) / 41 and drop remainder) * 8192) + 1200) + ((35 * 388) = 37957
• maxusers = ((12582912 - 131072) / 37957) and drop the remainder = 328 users per DRAS server

Additional Information

DRAS Considerations