Guardian Procedure Calls Reference Manual (G06.25+)

System Limits
Guardian Procedure Calls Reference Manual—522629-013
J-6
Native globals + heap +
flat segments + stack
640 MB Prior to G05
1.1 GB G05 releases
1.5 GB H-series releases
Table J-5. Enscribe File System Limits (page 1 of 2)
Limit Description Maximum Value Comment
File codes 64K Reserved range is limited
to 0 through 999.
File error numbers 64K Errors above 255 are
problematic through
some old interfaces.
Setmodes 64K
Controls 64K
Setparams 64K
System message numbers 32K Restricted to negative
values.
Concurrent opens Varies by device type Refer to appropriate
subsystem manual.
Nowait depth Varies by device type Refer to appropriate
subsystem manual.
Sync depth for nonretryable
writes to disk between
checkpoints
15
PFS Size 32 MB H-series releases
8 MB G-series releases
Receive depth 4,047 Size of $RECEIVE file
queue
Transactions per TFILE
1000
1 TFILE per process
Partitions per file 16
Structured disk file transfer sizes
(default mode):
Opened with structured
access
1 record
Opened with unstructured
access
4 KB
Table J-4. TNS vs. Native limits (page 3 of 3)