Ocfs2 File System Is In The High Availability Release; Dev/Disk/By-Name Is Deprecated; Device Name Persistence In The /Dev/Disk/By-Id Directory; Filters For Multipathed Devices - Novell LINUX ENTERPRISE SERVER 11 - STORAGE ADMINISTRATION GUIDE 2-23-2010 Administration Manual

2.4 OCFS2 File System Is in the High Availability
Release
The OCFS2 file system is fully supported as part of the SUSE Linux Enterprise High Availability
Extension.

2.5 /dev/disk/by-name Is Deprecated

The
/dev/disk/by-name
2.6 Device Name Persistence in the /dev/disk/by-
id Directory
In SUSE Linux Enterprise Server 11, the default multipath setup relies on
existing symbolic links in the
start multipathing, the link points to the SCSI device with its
running, the symbolic link points to the device using its
symbolic links in the
whether multipath is started or not. The configuration files (such as
need to be modified because they automatically point to the correct device.
See the following sections for more information about how this behavior change affects other
features:
Section 2.7, "Filters for Multipathed Devices," on page 22
Section 2.8, "User-Friendly Names for Multipathed Devices," on page 23

2.7 Filters for Multipathed Devices

The deprecation of the
name Is Deprecated," on page
configuration files. If you used the
filters in the
path. Consider the following when setting up filters that use the
The
/dev/disk/by-id/scsi-*
purpose.
Do not use the
Device-Mapper devices, and result in reporting duplicate PVs in response to a
command. The names appear to change from
pvuuid
For information about setting up filters, see
page 46.
22 SLES 11: Storage Administration Guide
path is deprecated in SUSE Linux Enterprise Server 11 packages.
/dev/disk/by-id
/dev/disk/by-id
/dev/disk/by-name
22) affects how you set up filters for multipathed devices in the
/dev/disk/by-name
file, you need to modify the file to use the
/etc/lvm/lvm.conf
/dev/disk/by-id/dm-*
.
directory when multipathing is started. Before you
scsi-xxx
dm-uuid-xxx
path persistently point to the same device regardless
directory (as described in
device name path for the multipath device
device names are persistent and created for exactly this
name in the filters. These are symbolic links to the
LVM-pvuuid
Section 7.2.3, "Using LVM2 on Multipath Devices," on
to overwrite the
udev
name. When multipathing is
name. This ensures that the
and
lvm.conf md.conf
Section 2.5, "/dev/disk/by-
/dev/disk/by-id
path:
by-id
pvscan
to and back to
dm-uuid LVM-
) do not