[Lustre-discuss] lustre OSS IP change

[Brendon]

Hello.

I'm new to Lustre. I'm writing because I have changed some IP's and I
can't get everything mounted.

4 total servers (changed IPs of just OSS servers)
 head - MGT/MGS (no IP change)
 oss0 - OSS (changed IP)
 oss1 - OSS (changed IP)
 oss2 - OSS (changed IP)

brianjm was helpful in IRC and hinted I needed to read the manual
about Changing a NID. I followed this procedure : 4.3.12 Changing a
Server NID

On all servers, I made sure everything was unmounted: umount /mnt/mdt
and umount /mnt/lustre

On head, I ran : tunefs.lustre --writeconf /dev/sdb1
On oss0, I ran : tunefs.lustre --writeconf /dev/sda5
On oss1, I ran : tunefs.lustre --writeconf /dev/sda5
On oss2, I ran : tunefs.lustre --writeconf /dev/sda5

I then mounted everything. First the mdt on server head

On head: mount /mnt/mdt  -- this didn't throw any errors. checked the
logs and no errors.

On oss0: mount /mnt/lustre
mount.lustre: mount jupiter at tcp0:/mylustre at /mnt/lustre failed: No
medium found
This filesystem needs at least 1 OST

Error log on oss0:
Jan 11 14:12:25 compute-oss-0-0 kernel: LustreError: 151-5: There are
no OST's in this filesystem. There must be at least one active OST for
a client to start.
Jan 11 14:12:25 compute-oss-0-0 kernel: LustreError:
4136:0:(ldlm_request.c:986:ldlm_cli_cancel_req()) Got rc -108 from
cancel RPC: canceling anyway
Jan 11 14:12:25 compute-oss-0-0 kernel: LustreError:
4136:0:(ldlm_request.c:1575:ldlm_cli_cancel_list())
ldlm_cli_cancel_list: -108
Jan 11 14:12:25 compute-oss-0-0 kernel: LustreError:
4136:0:(obd_mount.c:1951:lustre_fill_super()) Unable to mount  (-123)

The same error appears on the other oss servers.

Any help would be greatly appreciated.
-Brendon