[Lustre-discuss] mkfs.lustre and failover question

[David Noriega]

I've read through the 'More Complicated Configurations' section in the
manual and it says as part of setting up failover with
two(active/passive) MDS/MGS and two OSSs(active/active) to use the
following:

mkfs.lustre --fsname=lustre --ost --failnode=192.168.5.101 at tcp0
--mgsnode=192.168.5.104 at tcp0,192.168.5.105 at tcp0
/dev/lustre-ost1-dg1/lv1

Yet it fails when I try to mount:

kjournald starting.  Commit interval 5 seconds
LDISKFS FS on dm-9, internal journal
LDISKFS-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
LDISKFS FS on dm-9, internal journal
LDISKFS-fs: mounted filesystem with ordered data mode.
LDISKFS-fs: file extents enabled
LDISKFS-fs: mballoc enabled
Lustre: 5984:0:(client.c:1463:ptlrpc_expire_one_request()) @@@ Request
x1343800163193112 sent from MGC192.168.5.104 at tcp to NID
192.168.5.105 at tcp 5s ago has timed out (5s prior to deadline).
  req at ffff810118a53400 x1343800163193112/t0
o250->MGS at MGC192.168.5.104@tcp_0:26/25 lens 368/584 e 0 to 1 dl
1282144240 ref 1 fl Rpc:N/0/0 rc 0/0
LustreError: 4854:0:(obd_mount.c:1095:server_start_targets()) Required
registration failed for lustre-OSTffff: -4
LustreError: 4854:0:(obd_mount.c:1653:server_fill_super()) Unable to
start targets: -4
LustreError: 4854:0:(obd_mount.c:1436:server_put_super()) no obd lustre-OSTffff
LustreError: 4854:0:(obd_mount.c:147:server_deregister_mount())
lustre-OSTffff not registered
LDISKFS-fs: mballoc: 0 blocks 0 reqs (0 success)
LDISKFS-fs: mballoc: 0 extents scanned, 0 goal hits, 0 2^N hits, 0
breaks, 0 lost
LDISKFS-fs: mballoc: 0 generated and it took 0
LDISKFS-fs: mballoc: 0 preallocated, 0 discarded

Reading that makes me think its looking for 192.168.5.105 to be an
active MGS/MDS as well as 192.168.5.104(which is the primary).

David

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