Re: will this upgrade strategy work?

Mark Steben <mark(dot)steben(at)drivedominion(dot)com> writes:

> Good afternoon, team.
>
> We wish to do a postgres upgrade from 9.4 to 9.6.  In order to
> minimize downtime we were thinking to do this:
>   1. bring postgres down (9.4 is on 'diskset 1')
>   2. do a physical copy of the data to 'diskset 2' (same phyxical
> server.
>   3.  do an inplace pg_upgrade  to 9.6 on 'diskset 2'

Note that the copy (vs link) option of pg_upgrade is non-destructive and
probably a simpler version than what you're proposing.

Whatever method you choose, best do a prior test run in a non-prod
setting to insure everything is correct.

HTH

>   4.  Bring postgres up on 9.6 diskset 2
>  This way we have 9.4 on diskset 1 to fall back on.
>
> This would work much faster than the traditional dump restore.
>
> Any comments welcome.  Thanks.
>
>
> --
> Mark Steben
>  Database Administrator
> @utoRevenue | Autobase 
>   CRM division of Dominion Dealer Solutions 
> 95D Ashley Ave.
> West Springfield, MA 01089
> t: 413.327-3045
> f: 413.383-9567
>
> www.fb.com/DominionDealerSolutions
> www.twitter.com/DominionDealer
>  www.drivedominion.com
>
>
>
>
>
>
>
>

--
Jerry Sievers
Postgres DBA/Development Consulting
e: postgres(dot)consulting(at)comcast(dot)net
p: 312.241.7800