1 .TH ldev.conf 5 Lustre ldev.conf /etc/ldev.conf
3 /etc/ldev.conf \- lustre device configuration file
5 The ldev.conf file contains a list of Lustre devices used by the
8 Comments beginning with a hash (#) are ignored. Each line represents one
9 device and includes the following information separated by white space:
12 The name of the host where the device normally runs.
15 The name of the host where the device runs when failed over.
16 If failover is not used, insert a hypen as a placeholder.
19 The Lustre label associated with the device in the form \fIfsname-SRVnnnn\fR
20 where \fIfsname\fR is the file system name, \fISRV\fR is \fBOST\fR or
21 \fBMDT\fR, and \fInnnn\fR is the four-digit hex index of the device.
24 The path name of the device. In failover configurations it should be available
25 on both local and foreign hosts, e.g. use the symlinks maintained by udev
26 in \fI/dev/disk/by-id\fR.
29 The path name of the journal device, if any. This field may be omitted unless
30 the raidtab field is present. If a journal device is not used a hyphen may be
31 inserted as a placeholder.
34 The path name of a Linux software raid configuration file or ZFS cache file.
35 Using non-default names for these files may help prevent arrays from being
36 automatically started by the system. This is important in failover
37 configurations where the timing of device initialization must be strictly
38 controlled. This field may be omitted.
42 #local foreign/- label [md:|zfs:]device-path [journal-path]/- [raidtab]
44 # ldiskfs on block device example
45 tycho-mds1 - lc1-MDT0000 /dev/sda /dev/sdc
46 tycho1 tycho5 lc1-OST0000 /dev/disk/by-id/scsi-10103a262891d340100
47 tycho1 tycho5 lc1-OST0008 /dev/disk/by-id/scsi-10103a262681d340200
48 tycho1 tycho5 lc1-OST0010 /dev/disk/by-id/scsi-10103a2629e1d340300
49 tycho5 tycho1 lc1-OST0004 /dev/disk/by-id/scsi-101046e6b401d341100
50 tycho5 tycho1 lc1-OST000c /dev/disk/by-id/scsi-101046e6b591d341200
51 tycho5 tycho1 lc1-OST0014 /dev/disk/by-id/scsi-101046e6bb41d341300
53 # ldiskfs on Linux software RAID example
54 #local foreign/- label [md:|zfs:]device-path [journal-path]/- [raidtab]
55 zwicky-mds1 - zwicky-MDT0000 md:/dev/md0 - /etc/mdadm.conf.mds
56 zwicky1 zwicky2 zwicky-OST0000 md:/dev/md0 /dev/md10 /etc/mdadm.conf.oss
57 zwicky2 zwicky1 zwicky-OST0001 md:/dev/md1 /dev/md20 /etc/mdadm.conf.oss
60 #local foreign/- label [md:|zfs:]device-path [journal-path]/- [raidtab]
61 zeno-mds1 - zeno-MDT0000 zfs:lustre-zeno-mds1/mdt1 - /etc/zfs/zpool.cache.zeno
62 zeno1 zeno5 zeno-OST0000 zfs:lustre-zeno1/ost1 - /etc/zfs/zpool.cache.zeno
63 zeno5 zeno1 zeno-OST0001 zfs:lustre-zeno5/ost1 - /etc/zfs/zpool.cache.zeno