Veritas™ File System 5.0.1 Administrator's Guide

Not SupportedVersion 3 disk layout encompasses all file system
structural information in files, rather than at fixed
locations on disk, allowing for greater scalability.
Version 3 supports files and file systems up to one
terabyte in size.
Version 3
SupportedVersion 4 disk layout encompasses all file system
structural information in files, rather than at fixed
locations on disk, allowing for greater scalability.
Version 4 supports files and file systems up to two
terabytes in size.
Version 4
SupportedVersion 5 enables the creation of file system sizes up
to 32 terabytes. File sizes can be a maximum of 4 billion
file system blocks. File systems larger than 2 TB must
be created on a Veritas Volume Manager volume.
Version 5 also enables setting up to 1024 access control
list (ACL) entries.
Version 5
SupportedVersion 6 disk layout enables features such as
multi-volume support, cross-platform data sharing,
named data streams, and File Change Log.
Version 6
SupportedVersion 7 disk layout enables support for variable and
large size history log records, more than 2048 volumes,
large directory hash, and Dynamic Storage Tiering.
Version 7
Some of the disk layout versions were not supported on all UNIX operating systems.
Version 2 and 3 file systems can still be mounted, but this will be disallowed in
future releases. Currently, the Version 4, 5, 6, and 7 disk layouts can be created
and mounted. Version 7 is the default disk layout version.
The vxupgrade command is provided to upgrade an existing VxFS file system to
the Version 4, 5, 6, or 7 disk layout while the file system remains online. You must
upgrade in steps from older to newer layouts.
See the vxupgrade(1M) manual page.
The vxfsconvert command is provided to upgrade Version 2 and 3 disk layouts
to the Version 7 disk layout while the file system is not mounted.
See the vxfsconvert(1M) manual page.
Note: The HP-UX boot loader does not support disk layout Version 6 or later.
Disk layout
About disk layouts
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