[Lustre-discuss] Lustre interoperability between the various 1.6.x releases
Karsten Weiss
K.Weiss at science-computing.de
Wed Aug 6 01:29:08 PDT 2008
Hi,
regarding the Lustre interoperability between the various 1.6.x releases
the manual currently says this:
13.1 Lustre Interoperability
For Lustre 1.6.4, the following upgrades are supported:
[...]
* One minor version to the next (for example, 1.6.3 > 1.6.4 and 1.4.11 >
1.4.12).
Could someone please elaborate on this?
1. Is it generally okay(^1) to upgrade the patchless clients to 1.6.x+1
while the servers are still at 1.6.x?
2. Is it generally okay to upgrade the servers to 1.6.5.x+1 while some
of the patchless clients are still at 1.6.x?
My understanding is that both is allowed and supported. Correct?
3. Is there any required/recommended upgrade order between MDSes and
OSSes doing a rolling upgrade from 1.6.x to 1.6.x+1? (Especially
when there are active clients)
Basically my question is this: Which version combinations between clients,
MDSes and OSSes are allowed and which are not?
Thanks in advance!
Regards,
Karsten
^1: Appart from bugs like
https://bugzilla.lustre.org/show_bug.cgi?id=16237
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