setext(1m) [hpux man page]

setext(1M)																setext(1M)

NAME

       setext - set VxFS extent attributes

SYNOPSIS

       extent_size] flag] reservation] file

DESCRIPTION

       specifies a fixed extent size for a file, and reserves space for a file.  The file must already exist.

       In  some cases, fsadm may reorganize the extent map of a file in such a way as to make it less contiguous.  However, it does not change the
       geometry of a file that has a fixed extent size.

   Options
       recognizes the following options:

	      Specify a fixed extent size.
			     extent_size is the number of file system blocks to allocate for the extent.  An extent_size of zero cancels  previous
			     fixed-size  extents  for the file and uses the default extent allocation policy.  See vxtunefs(1M) for information on
			     extent size parameters.

	      The available allocation flags are

			     Specify that all extents must be aligned on
				    extent_size boundaries relative to the start of allocation units.

			     Immediately incorporate the reservation
				    into the file and update the file's on-disk inode with size and block count information that is  increased	to
				    include  the  reserved  space.   The  space added to the file is not initialized.  Only users with appropriate
				    privileges can use the option.

			     Specify that the reservation must be allocated contiguously.

			     Specify that the file may not be extended after the preallocated space
				    is used.

			     Specify that the reservation is not a persistent attribute of the file.
				    Instead, the space is allocated until the final close of the file, when any space not  used  by  the  file	is
				    freed.  The temporary reservation is not visible to the user (via getext(1M) or the ioctl, for example).

			     Specify that the reservation is reduced to the current file size
				    after the last close by all processes that have the file open.

	      Specify the VxFS file system type.

	      Preallocate space for
			     file.  reservation is specified in file system blocks or the actual size in bytes.

	      Echo the completed command line, but do not execute the command.
			     The  command  line  is  generated by incorporating the user-specified options and other information derived from This
			     option allows the user to verify the command line.

   Operands
       recognizes the following operand:

	      file	     Name of an existing VxFS file.

   Notes
       is available only with the HP OnLineJFS product.

       You can specify multiple flags by entering multiple instances of on the command line.

       You must specify the allocation flags with either the or option.

       Only the and allocation flags are persistent attributes of the file and therefore visible via getext(1M) or the ioctl.  Although is  not  a
       persistent  attribute  of  the file, it is visible until it is cleared during the final close of the file.  Other allocation flags may have
       persistent effects, but are not visible as allocation flags.

       In some cases, may reorganize the extent map of a file in such a way as to make it less contiguous.  However, it will not change the geome-
       try of a file that has a fixed extent size.

       For  the or options, you can specify the size in number of file system blocks or in bytes.  A numeric value indicates file system blocks, a
       numeric value with a suffix specifies the size in bytes: for kilobytes, for megabytes, or for gigabytes.

SEE ALSO

       getext(1M), fsadm_vxfs(1M), vxtunefs(1M), vxfsio(7).

       enhancement in Description section of vxfsio(7).

																	setext(1M)

newfs_vxfs(1M)															    newfs_vxfs(1M)

NAME

       newfs_vxfs: newfs - create a new VxFS file system

SYNOPSIS

       disk_type] swap]
	      [mkfs_vxfs_options] special

DESCRIPTION

       builds a VxFS file system by invoking

       special specifies a character (or raw) file (for example, or

   Options
       recognizes the following options:

	      Reserve space for boot programs past the end of the
			     file  system.  If the file is present on the system, sufficient space to accommodate that file is reserved; otherwise
			     691 kilobytes are reserved.  This option decreases the size of the file system being created.  This option cannot	be
			     used if the file-system size is also specified using (see options below).

	      Specify the file-system type

	      Use disk parameters from the
			     disk_type	named  in  This option is provided for backward compatibility with previous HP-UX releases. Any parameters
			     specified on the command line will the corresponding values in Any values not specified in the command line  and  not
			     shown in are defaulted.

	      Reserve	     swap  megabytes  of swap space past the end of the file system.  This option decreases the size of the file system to
			     be created by the specified number of megabytes.  cannot be used if the file-system size is also specified using (see
			     options below).

	      Specify verbose mode.
			     prints out its actions, including the parameters passed to

	      Echo the completed command line, but do not execute the command.
			     If not valid, prints an error message.  The command line is generated by incorporating the user-specified options and
			     other information derived from This option allows the user to verify the command line.

       NOTE: You can specify the and options in the same command line.	In that case, both the requested swap space and the space needed for  boot
       programs are reserved.  These options are used when the file system size is defaulted to the size of the entire disk.

   mkfs_vxfs Options
       The following additional command-line options can be used to override default parameters passed to

	      File system block size in bytes. The default value is
			     1024 bytes for systems smaller than two terabytes.  For Version 5 disk layout file systems larger than two terabytes,
			     the maximum file system size is dependent on the block size.  A four terabyte file system requires a 1K  block  size,
			     An  eight	terabyte  file	system requires a 2K block size, a 16 TB file system requires a 4K block size, and a 32 TB
			     file system requires an 8K block size.

	      Valid only for the Version 4 and 5 disk layouts.
			     This option controls the largefiles flag for the file system.  If is specified, the bit is set and  files	two  giga-
			     bytes  or	larger can be created.	If is specified, the bit is cleared and files created on the files system are lim-
			     ited to less than two gigabytes.  The default is See mkfs_vxfs(1M), mount_vxfs(1M), and fsadm_vxfs(1M).

	      File system size in
			     blocks (defined in The default value is the size of the entire disk or disk section, minus any  swap  or  boot  space
			     requested.   The  size specifies the number of sectors in the file system.  By default, size is specified in units of
			     sectors.  However, you can append a suffix to size to indicate another unit of measure.  Append or to  indicate  that
			     the value is in kilobytes, or to indicate megabytes, or or to indicate gigabytes.

   Operands
       recognizes the following operand:

	      special	     A character (raw) file.

EXAMPLES

       To create a VxFS file system on or and reserve 40 megabytes of swap space.

FILES

       Disk description file.
       Static information about the file systems.

SEE ALSO

       fsadm_vxfs(1M), mkfs(1M), mkfs_vxfs(1M), mount_vxfs(1M), newfs(1M), disktab(4).

																    newfs_vxfs(1M)