-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Andreas, Actually we have a patch here at the lab that augments lctl to copy logs. We can do this on a running filesystem. If the administrator uses this command, it is possible to have a freshly formatted 1.6 Lustre filesystem that can mount 1.4.x clients. This seems to work just fine on our test systems. There are some log records that 1.4 clients do not understand, but there seem to just be harmless markers. We also plan on using this if we ever add any new osts to the filesystems that we upgraded from 1.4 to 1.6... I will open a bug and post the patch over there if people might find it useful.
- -Herb Andreas Dilger wrote: > On Apr 24, 2008 17:08 +0000, Quigley, Tom wrote: >>>> On Apr 23, 2008 21:58 +0530, ashok bharat bayana wrote: >>>> Is there an interoperability between lustre 1.4.11 client and lustre >>>> 1.6 server? i mean can we make lustre 1.4.11 client talk to lustre 1.6 >>>> server? >>> Only if the filesystem was originally formatted with 1.4 and upgraded >>> to 1.6 later. >> does the interoperability work in the opposite direction, i.e. with a >> 1.4.11 server and a 1.6 client? > > Yes, this works fine. To be clear, it IS possible to have 1.4.11 clients > on 1.6 servers, but only in the case where the filesystem was previously > upgraded from 1.4. > > Cheers, Andreas > -- > Andreas Dilger > Sr. Staff Engineer, Lustre Group > Sun Microsystems of Canada, Inc. > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFIEOsIP/62XqEEbMYRCmS2AKDmhUilVH8mIzfTUdO4vonPGOBazACfX3ei hSXxAwubKnWFjcvBtHPwu/s= =Rlq4 -----END PGP SIGNATURE----- _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
