[OpenAFS] Recommendations on Transarc -> OpenAFS Cell

[Steve Devine]

Rich Sudlow wrote:

> Does anyone have recommendations and or experience with a Transarc -> 
> OpenAFS migration?  We have cell that's been running for about 15 
> years - 6 TB, 30,000 volumes 20 fileserver, KRB5 infrastucture.  We've 
> built quite extensively using this infrastructure.
>
> Thoughts are to
>
> a) Create a new (higher performance) cell from scratch - migrate Unix 
> users to the new cell while dropping Mac and Windows users - migrating 
> them to a NetApp filer.  Eventually shuting down the "old" cell.
> Ouch .. lots of work.
> b) Migrate the Transarc cell -> OpenAFS and then remove use Mac and 
> Windows users.
>
> Are there any on this list with experiences about doing the Transarc 
> -> OpenAFS  migration?

We have been moving towards an all openafs environment for the last 2 
years. For us it has been basically seamless. We replaced the database a 
year ago  and the fileservers still running transarcs software never 
noticed the diff.
As we replace the older fileservers with new hardware we install openafs 
and again it all seems to be painfree.  We are about 2T with >250,000 
user volumes.
We had to stop using the runntp to sync the time and rely on xntpd  .. 
Maybe others have more data on that.
/sd

>
>
> Thanks,
>
> Rich
>
>

-- 
Steve Devine
Storage Systems
Academic Computing & Network Services
Michigan State University

301 Computer Center
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