Open System Services Management and Operations Guide (H06.06+)

Environment Limits
Open System Services Management and Operations Guide—527191-004
E-2
OSS file size For H06.06
and later
RVUs:
Approximately
1 terabyte
(constrained
by the space
available on
the disk
volume)
For G-series
RVUs and for
H-series
RVUs prior to
H06.06:
Approximately
2 gigabytes
For RVUs H06.06 and later, the
file size limit depends on the
function used to open the file.
For details, see OSS and
Guardian Enscribe File
Formats and File Size Limits
on page E-5.
OSS
processes
per node
Approximately
29,000
Prior to RVU G06.19 (prior to
SPR T9050AOU), the limit was
approximately 16,000.
At an OSS shell prompt:
ps -lA
lists active and zombie
processes.
OSS
processes
per
processor
Approximately
4,000 for
S-series
servers
Approximately
8,000 for
NS-series
servers
The limiting factor is the
number of possible process
control blocks (PCBs) per
processor:
For RVUs G06.00 through
G06.07, the limit was
approximately 1,800.
For RVUs G06.08 through
G06.18 (prior to SPR
T9050AOU), the limit was
approximately 2,200.
At a TACL prompt, use
PEEK.
OSS file
opens per
process,
without
using the
select()
function to
manage I/O
4,500
Table E-1. OSS Environment Limits (page 2 of 4)
Description
Maximum
Value Comment
To Check Amount
Currently Used