Dear Andreas,
Since i have a client that it's using 1.4 and i can't upgrade it to
1.6 so i decided to install 1.4 server and upgraded to 1.6 so the 1.4
client can mount it, as you mentioned before here what i got while
trying to upgrade to 1.6 version
I verified the 1.4 installation i used (1.4.91) and mounted 1.4 using
client 1.4 and 1.6 everything was fine now duing the upgrade this is
what i got.
any idea,
Thanks and best regards
H. N. Harake
t3:~ # tunefs.lustre --verbose --mgs --mdt --fsname=lustre /dev/sde
/dev/sde: Filesystem has unsupported feature(s) while opening filesystem
In all likelihood, the 'unsupported feature' is 'extents', which older
debugfs does not understand.
Use e2fsprogs-1.38-cfs1 or later, available from
ftp://ftp.lustre.org/pub/lustre/other/e2fsprogs/
checking for existing Lustre data: found extents
tunefs.lustre: Unable to read /tmp/dirR7JvgQ/mountdata (No such file or
directory).
Trying last_rcvd
tunefs.lustre: Unable to open /tmp/dirR7JvgQ/last_rcvd: No such file or
directory
Contents of /tmp/dirR7JvgQ:
cmd: ls -l /tmp/dirR7JvgQ/
total 0
Contents of disk:
cmd: debugfs -c -R 'ls -l /' /dev/sde
debugfs 1.39 (29-May-2006)
/dev/sde: Filesystem has unsupported feature(s) while opening filesystem
ls: Filesystem not open
cmd: rm -rf /tmp/dirR7JvgQ
Failed to read old data (2)
tunefs.lustre FATAL: Failed to read previous Lustre data from /dev/sde
(2)
tunefs.lustre: exiting with 2 (No such file or directory)
On 9-Jul-2007, at 19:40, Andreas Dilger wrote:
On Jul 09, 2007 15:27 +0200, H. N. HARAKE wrote:
I am trying to mount lustre 1.6.1 using 1.4.x client, l am unable to
mount it and i didn't find any confirmation that it's support, so is
it possible to mount lustre server 1.6.1 using client version 1.4.X,
if yes how?
This is only possible if the filesystem was originally formatted with
Lustre 1.4, so that you can upgrade the 1.4 servers to 1.6 before the
clients. For systems that were installed initially with 1.6 this is
not possible.
Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.
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