rdisp/ROLL_SHM - Roll buffer size

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| Parameter : rdisp/ROLL_SHM                                        |
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| Short description: Roll buffer size                               |
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| Description :                                                     |
| --------------                                                    |
| The value specifies the size of the roll buffer in 8KB blocks.    |
| The roll buffer is used as a cache for the roll file.             |
| To ensure fast context change, the roll buffer should             |
| provide enough space for the roll areas of all user contexts.     |
| Aim:                                                              |
| Minimum time for context change                                   |
| Windows NT: Standard value is calculated from the profile         |
|            parameter PHYS_MEMSIZE.                                |
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  Windows NT: Standard value is calculated from the profile
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| Unit : 8 KB blocks                                                |
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| Default : 0                                (other)                |
|           = [UC] * 100                     (Windows NT)           |
|           ( [UC] = Max. number of users calculated from the       |
|             profile parameter PHYS_MEMSIZE)                       |
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            ( [UC] = Max. number of users calculated from the
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| Proposed value: 8192 (64MB)                                       |
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| Who is permitted to make changes: The customer                    |
|          No manual maintenance required for Microsoft Windows NT  |
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  Who is permitted to make changes: The customer
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| Dependencies : A value larger than %%rdisp/ROLL_MAXFS%% (size of  |
|  the roll file) does not make any sense.                          |
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  Operating system dependencies: None
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| Operating system dependencies: None                               |
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  Database dependencies: None
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| Database dependencies: None                                       |
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| Short Description : Roll buffer size 
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| Applications Area : Dispatcher 
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| Parameter Type : I 
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| Changes allowed : X 
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| Valid for Operating System : * 
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| Dynamic switchable :  
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| Same on all Servers :  
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