Open System Services Management and Operations Guide (G06.30+, H06.08+, J06.03+)

Table 22 File Format and Limits Table for File Open Behavior
Using This Function
Guardian APIs with
64-Bit elections
Guardian APIs without
64-Bit elections
64-Bit OSS APIs such
as open64()
32-Bit OSS APIs such
as open()
To Open This File...
Approximately
1TB-41MB,
2GB-8KB
(2,147,475,456
bytes)
Approximately
1TB-41MB,
constrained by disk
volume space
2GB-8KB
(2,147,475,456
bytes)
OSS small file (<
approx. 2 GB) created
on J06.03 and later
J-series RVUs, H06.06
constrained by disk
volume space
and later H-series
RVUs, or G06.29 and
later G-series RVUs
Approximately
1TB-41MB,
Fails with a
FEOVERSIZEFILE error
Approximately
1TB-41MB,
Fails with an
EOVERFLOW error
OSS large file (>
approx. 2 GB) created
constrained by disk
volume space
constrained by disk
volume space
on J06.03 and later
J-series RVUs, H06.06
and later H-series
RVUs, or G06.29 and
later G-series RVUs
Approximately
1TB-41MB,
Approximately
2GB-32MB if 64-bit
Approximately
1TB-41MB,
Approximately
2GB-32MB if 64-bit
OSS small file created
on older RVUs and on
constrained by disk
volume space
API has never been
used on this
constrained by disk
volume space
OSS API has never
been used on this
a disk with a 514-byte
sector size
file2GB-8KBfile2GB-8KB
(2,147,475,456(2,147,475,456
bytes) if prior openbytes) if prior open
calls have been closedcalls have been closed
and if the file hasand if the file has
previously beenpreviously been
opened by a 64-bit
API
opened by a 64-bit
OSS API
Approximately
1TB-41MB,
Approximately
2GB-24MB if 64-bit
Approximately
1TB-41MB,
Approximately
2GB-24MB if 64-bit
OSS small file created
on older RVUs and on
constrained by disk
volume space
API has never been
used on this file.
constrained by disk
volume space
OSS API has never
been used on this file.
a disk with a 512-byte
sector size
2GB-8KB2GB-8KB
(2,147,475,456(2,147,475,456
bytes) if prior openbytes) if prior open
calls have been closedcalls have been closed
and if the file hasand if the file has
previously beenpreviously been
opened by a 64-bit
API
opened by a 64-bit
OSS API
Approximately
2GB-2MB, Enscribe
Format 1
Approximately
2GB-2MB, Enscribe
Format 1
Approximately
2GB-2MB, Enscribe
Format 1
Approximately
2GB-2MB, Enscribe
Format 1
Guardian Enscribe
Format 1 file created
using OSS APIs on
J06.03 and later
J-series RVUs, H06.06
and later H-series
RVUs, or G06.29 and
later G-series RVUs
See the Guardian
Procedure Calls
Reference Manual.
See the Guardian
Procedure Calls
Reference Manual.
Approximately
2GB-1MB, Enscribe
Format 1, constrained
Approximately
2GB-1MB, Enscribe
Format 1, constrained
Guardian Enscribe
Format 1 file created
using Guardian APIs
by maximum numberby maximum numberon J06.03 and later
of extents and extent
sizes
of extents and extent
sizes
J-series RVUs, H06.06
and later H-series
RVUs, or G06.29 and
later G-series RVUs
Approximately 25 GB,
Enscribe Format 2
2GB-8KB
(2,141,475,456
Approximately 25 GB,
Enscribe Format 2
2GB-8KB
(2,141,475,456
Guardian Enscribe
Format 2 file created
OSS and Guardian Enscribe File Formats and File Size Limits 419