It seems reasonable, and no worse than the situation now, with mis-matched 
versions. I don't see why the host software would have anything to do with VC, 
seems like it should just be handling VM operations, and doing 
hardware-passthrough...


> On Sep 6, 2018, at 12:01 PM, Chuck Anderson <[email protected]> wrote:
> 
> Logically, why couldn't you isolate one member at a time, do the upgrade, 
> then rejoin it to the VC?
> 
> On Thu, Sep 06, 2018 at 11:12:59AM -0500, Louis Kowolowski wrote:
>> I currently have a 6 node VC of qfx5100. All are running 14.1X53-D43.7 and 
>> host software 13.2X51-D38. In discussions with JTAC, they claim that 
>> upgrading the host software to match the VM, it requires a reboot of *all* 
>> nodes in the VC at the same time.
>> 
>> Has anybody else had to deal with this? Are there any work-arounds? Taking 
>> the whole thing down is extremely awkward. Can we do a rolling upgrade 
>> (manually, I know ISSU/NSSU doesn't handle this) and stay operational? We 
>> are working on a plan to re-architect this into 2x 3 node VC and MC-LAG them 
>> together, but it would be nice to be able to fix this more short-term.

--
Louis Kowolowski                                [email protected]
Cryptomonkeys:                                   http://www.cryptomonkeys.com/

Making life more interesting for people since 1977

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