HP-UX Reference (11i v1 05/09) - 1M System Administration Commands A-M (vol 3)

mkfs_vxfs(1M) mkfs_vxfs(1M)

nau=n

n is the number of allocation units on the ﬁle system. This option is not applica-

ble to the Version 3 and 4 disk layouts. For disk layout Version 2, if nau is

speciﬁed, then ausize is determined by evenly dividing the sectors among the

allocation units. By default, the number of allocation units is based on the value

of ausize.

ninode=n

n is the maximum number of inodes in the ﬁle system. The actual maximum

number of inodes is n rounded up to an appropriate boundary. The digit 0 and

the string unlimited both mean that the number of inodes is unlimited. The

default is unlimited.

version=n

n is the VxFS disk layout version number. Valid values are 2, 3, and 4.

EXAMPLES

To use mkfs to create a VxFS ﬁle system on

/dev/rdsk/c0t6d0

mkfs -F vxfs /dev/rdsk/c0t6d0 1024

To use mkfs to determine the command that was used to create the VxFS ﬁle system on

/dev/rdsk/c0t6d0

mkfs -F vxfs -m /dev/rdsk/c0t6d0

To create a VxFS ﬁle system on /dev/vgqa/lvol1

, with a Version 4 disk layout and largeﬁles capabil-

ity:

mkfs -F vxfs -o version=4,largefiles /dev/vgqa/lvol1

WARNINGS

If you want to reuse a special device that was previously used by LVM, you must ﬁrst wipe out all the LVM

information remaining on the disk. Use pvremove(1M) to remove the LVM information before executing

mkfs_vxfs(1M). (You can also remove the LVM information by initializing the device with mediainit(1), but

that is slower.)

The

-o largefiles option should be used with care, since older applications will not react correctly

when confronted with large ﬁles.

RETURN VALUE

Upon successful completion, the mkfs command returns a value of 0. The return value is 1 if a syntax

error occurs. Other errors return a value of 32.