HP-UX Reference (11i v2 04/09) - 1M System Administration Commands A-M (vol 3)

mkfs_hfs(1M) mkfs_hfs(1M)

Access Control Lists

Every ﬁle with one or more optional ACL entries consumes an extra (continuation) inode. If you antici-

pate signiﬁcant use of ACLs on a new ﬁle system, you can allocate more inodes by reducing the value of

nbpi appropriately. The small default value typically causes allocation of many more inodes than are

actually necessary, even with ACLs. To evaluate your need for extra inodes, run the

bdf -i command

on existing ﬁle systems. For more information on access control lists, see acl(5).

EXAMPLES

Execute the

mkfs command to create a 32MB HFS ﬁle system on the non-LVM disk

/dev/dsk/c1t2d0

mkfs -F hfs /dev/dsk/c1t2d0 32768

Display the command that was used to construct the ﬁle system on

/dev/dsk/c1t2d0

mkfs -F hfs -m /dev/dsk/c1t2d0

Create an HFS ﬁle system within a logical volume

/dev/vg01/my_lvol

of a size equal to the size of

my_lvol:

mkfs -F hfs /dev/vg01/my_lvol

WARNINGS

The old -F option, from prior releases of mkfs(1M), is no longer supported.

mkfs_hfs(1M) cannot be executed specifying creation of a ﬁle system on a whole disk if that disk was pre-

viously used as an LVM disk. If you wish to do this, use mediainit (1) to reinitialize the disk ﬁrst.

The

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

when confronted with large ﬁles.

AUTHOR

mkfs was developed by HP and the University of California, Berkeley.

FILES

/var/adm/sbtab List of locations of the superblocks for the created ﬁle system. The

mkfs com-

mand appends entries to this ﬁle.