Open System Services Management and Operations Guide (G06.29+, H06.07+)

Environment Limits
Open System Services Management and Operations Guide—527191-005
E-4
OSS pipes
per
processor
135 to 1,024,
depending on
message size
Prior to SPR T8620ABT, the
limit was 39 to 256, depending
on message size.
Device
labels per
node
ZZZZZ
32
-
480
10
Certain label designators are
skipped.
At a TACL prompt, use
the SCF INFO FILESET *,
DETAIL command.
OSS filesets
per node
Functional
limit:
1,000,000
Theoretical
maximum:
33,553,952
Functional limit is imposed by
functional limit on directories (a
fileset must have a directory as
a mount point).
Theoretical maximum is
determined by maximum
number of device labels.
At a TACL prompt, use
the SCF INFO FILESET *,
DETAIL command.
Entries in an
inode cache
500,000 A smaller limit is configurable.
The default is 4,096.
Prior to RVU G06.24, the limit
was 250,000.
Entries in a
link cache
500,000 A smaller limit is configurable.
The default is 4,096.
Prior to RVU G06.24, the limit
was 250,000.
Buffer size
for Network
File System
(NFS)
nonretryable
operations
128,000 bytes A smaller limit is configurable.
The default is 16,000.
OSS
message-
queue IDs
that can be
cached
1024 A smaller limit is configurable.
The default is 32.
Table E-1. OSS Environment Limits (page 4 of 5)
Description
Maximum
Value Comment
To Check Amount
Currently Used