>I formatted a file system with Lustre 2.1.5, and have used it for a while. I just upgraded to Lustre 2.5.0. I thought that I should be able to mount all the targets. I was able to mount the MDT without a problem. When >I try to mount an OST, I get this error:
ORNL had a small system that went from 2.1 to 2.4 and we had no problem. Haven’t tried 2.5.
LDISKFS-fs (dm-6): mounted filesystem with ordered data mode. quota=off. Opts:
Lustre: srv-hss55-OST0002: No data found on store. Initialize space
LustreError: 48809:0:(obd_config.c:1341:class_process_proc_param()) hss55-OST0002: unknown param read_cache_enable=0
It got moved. Shouldn’t of prevented a mount but you never know. Below assumes ldiskfs backend.
lctl set_param osd-ldiskfs.$FSNAME-OSTXXX.read_cache_enable=0
LustreError: 48809:0:(obd_config.c:1591:class_config_llog_handler()) MGC10.2.99.21@o2ib: cfg command failed: rc = -38
Lustre: cmd=cf00f 0:hss55-OST0002 1:ost.read_cache_enable=0
LustreError: 15c-8: MGC10.2.99.21@o2ib: The configuration from log 'hss55-OST0002' failed (-38). This may be the result of communication errors between this node and the MGS, a bad configuration, or other errors. See the syslog for more information.
LustreError: 48614:0:(obd_mount_server.c:1257:server_start_targets()) failed to start server hss55-OST0002: -38
LustreError: 48614:0:(obd_mount_server.c:1732:server_fill_super()) Unable to start targets: -38
LustreError: 48614:0:(obd_mount_server.c:848:lustre_disconnect_lwp()) hss55-MDT0000-lwp-OST0002: Can't end config log hss55-client.
LustreError: 48614:0:(obd_mount_server.c:1426:server_put_super()) hss55-OST0002: failed to disconnect lwp. (rc=-2)
Lustre: Failing over hss55-OST0002
Lustre: server umount hss55-OST0002 complete
LustreError: 48614:0:(obd_mount.c:1311:lustre_fill_super()) Unable to mount (-38)
mount.lustre: mount /dev/mapper/map02 at /mnt/ost2 failed: Function not implemented
Should this have worked? Any advice on how to fix this?
Sr. Staff Engineer