[Pvfs2-users] upgrade path from 1.3.x to latest 1.5.1

[Sam Lang]

Hi Joy,

There is a migration tool that has to be run on the storage spaces to 
upgrade to 1.5.1 from previous versions.  It was new with 1.5.0 
(included in the pvfs2 release).  There's more information about it here:

http://www.pvfs.org/pvfs2/pvfs2-faq.html#SECTION000616000000000000000

For most storage spaces, the migration tool does its job, but since the 
1.5.1 release, we've uncovered two bugs that showed up while migrating 
large storage spaces.  Those bugfixes will go out in the next release 
once we've been able to do some more testing.

I wish I could tell you that it was perfectly stable in the first 
release, but its not, so you have two options:

A) wait for the next release with the bug fixes I mentioned.

B) run the migration tool with 1.5.1 on your storage space.  The first 
thing the tool does is to backup your storage space, so if the migration 
fails at some point, you can revert to the backed-up version and go to 
option A.

Let us know how things go if you do decide to migrate.

Thanks,

-sam

Joy Khoriaty wrote:
> Hi folks,
> 
> What's the upgrade path from PVFS2 1.3.x to 1.5.1?
> 
> I understand that there might be a necessity to go through some
> kind of migration tool because of changes in the way e.g. the data
> is stored -- what is the status of that: how mature are the migration 
> tools and where are they available?
> 
> Cheers,
> 
> _______________________________________________________________
>                                                                                 
> Joy Khoriaty        	          tel: (617) 253 8865
> MIT				  fax: (617) 253 8674
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