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

Environment Limits
Open System Services Management and Operations Guide—527191-005
E-6
File Size Limit Behavior for File Open Operations
File Size Limit Behavior for File Open Operations
Attempts to use 32-bit OSS APIs such as open( ) to open any Guardian Enscribe
file that is larger than approximately 2 gigabytes fail with an error.
Limits for Guardian Enscribe files opened with Guardian APIs are described in the
Guardian Procedure Calls Reference Manual.
Table E-2. Size Limits for Files Created on RVUs that Support Large OSS Files
Using This Function
To Create
This File...
32-Bit OSS APIs
such as
creat( )
64-Bit OSS APIs
such as
creat64( )
Guardian APIs
without 64-Bit
elections
Guardian APIs
with 64-Bit
elections
OSS file 2GB - 8KB
(2,147,475,456
bytes), Enscribe
Format 1
Approximately
1TB-41MB,
constrained by
disk volume
space, Enscribe
Format 2
N/A N/A
Guardian
Enscribe file
Approximately
2GB - 2MB,
Enscribe
Format 1
Approximately
25GB,
Enscribe
Format 2
4GB - 4KB
(4,294,963,200
bytes), Enscribe
Format 1
1TB - 1MB
(1,099,510,579,2
00), Enscribe
Format 2