diff options
| author | Ned Bass <[email protected]> | 2012-11-29 11:08:37 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2012-12-03 14:04:47 -0800 |
| commit | 2957f38d78d376431ab18d2f576099d682d7a711 (patch) | |
| tree | a979091181389347a50da7a51a2e0431f8286799 /etc | |
| parent | e89260a1c8851ce05ea04b23606ba438b271d890 (diff) | |
vdev_id support for device link aliases
Add a vdev_id feature to map device names based on already defined
udev device links. To increase the odds that vdev_id will run after
the rules it depends on, increase the vdev.rules rule number from 60
to 69. With this change, vdev_id now provides functionality analogous
to zpool_id and zpool_layout, paving the way to retire those tools.
A defined alias takes precedence over a topology-derived name, but the
two naming methods can otherwise coexist. For example, one might name
drives in a JBOD with the sas_direct topology while naming an internal
L2ARC device with an alias.
For example, the following lines in vdev_id.conf will result in the
creation of links /dev/disk/by-vdev/{d1,d2}, each pointing to the same
target as the device link specified in the third field.
# by-vdev
# name fully qualified or base name of device link
alias d1 /dev/disk/by-id/wwn-0x5000c5002de3b9ca
alias d2 wwn-0x5000c5002def789e
Also perform some minor vdev_id cleanup, such as removal of the unused
-s command line option.
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #981
Diffstat (limited to 'etc')
| -rw-r--r-- | etc/zfs/Makefile.am | 1 | ||||
| -rw-r--r-- | etc/zfs/vdev_id.conf.alias.example | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/etc/zfs/Makefile.am b/etc/zfs/Makefile.am index b1a1cf43c..dd864f4a2 100644 --- a/etc/zfs/Makefile.am +++ b/etc/zfs/Makefile.am @@ -1,6 +1,7 @@ pkgsysconfdir = $(sysconfdir)/zfs pkgsysconf_DATA = \ + vdev_id.conf.alias.example \ vdev_id.conf.sas_direct.example \ vdev_id.conf.sas_switch.example \ vdev_id.conf.multipath.example \ diff --git a/etc/zfs/vdev_id.conf.alias.example b/etc/zfs/vdev_id.conf.alias.example new file mode 100644 index 000000000..33735b05b --- /dev/null +++ b/etc/zfs/vdev_id.conf.alias.example @@ -0,0 +1,4 @@ +# by-vdev +# name fully qualified or base name of device link +alias d1 /dev/disk/by-id/wwn-0x5000c5002de3b9ca +alias d2 wwn-0x5000c5002def789e |