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Recommended OpenVMS Process Resources
Check and set the OpenVMS process resources, if necessary, for the following accounts:
System administrator account
User accounts
Database administrator accounts
Almost all OpenVMS process quotas impart a cost only when a given resource is requested and consumed. If you limit the Ingres process resources, it may function, but its performance may be impaired. Therefore, we generally recommend high resource quotas for the system administrator account. If performance is a critical issue, try setting the quota to infinity, if permitted.
The following table shows the recommended minimum process resources for the system administrator. When the install program creates the system administrator account, it automatically sets the process resources to the recommended minimums shown in the table.
Database administrators who checkpoint their own databases (as opposed to the system administrator) indirectly use OpenVMS backup. You should set UAF parameters for their accounts. For details, see the OpenVMS backup manual.
UAF Name
Description
Recommended Starting Value
BYTLM
Buffered I/O byte count limit
500,000
TQELM
Timer queue entry limit
100
PGFLQUO
Paging file quota (possibly set to the system virtual page count)
256,000
DIOLM
Direct I/O count limit
200
BIOLM
Buffered I/O limit
400
FILLM
Open file limit
1000
PRCLM
Subprocess creation limit
15 or larger - Alpha
ASTLM
AST queue limit
200
ENQLM
Enqueue limit (non-cluster)
4000
JTQUOTA
Job logical name table byte limit
20,000
MAXDETACH
Maximum detached processes limit
0 (infinity)
PRIV
Privileges
ALTPRI, CMKRNL, IMPERSONATE, EXQUOTA, OPER, PRMGBL, PRMMBX, READALL, SHARE, SYSGBL, SYSLCK, SYSNAM, SYSPRV, TMPMBX, WORLD
DEVICE
DIRECTORY
Device and directory for default login
II_SYSTEM:[Ingres]
DEFPRIV
Default privileges
ALTPRI, CMKRNL, IMPERSONATE, EXQUOTA, OPER, PRMGBL, PRMMBX, READALL, SHARE, SYSGBL, SYSLCK, SYSNAM, SYSPRV, TMPMBX, WORLD
Last modified date: 08/28/2024