We are upgrading our SP 2010 environment to a new fully virtualized SP 2013 environment using VMWare. The new VMs are Windows Server 2012 R2 and we are using Sharepoint Server 2013 SP1. Database is on Windows Server 2012 using SQL Server 2012.
We have one moderate content database at 18GB and a large content database at 138GB. Both content databases have a few reported missing features but no upgrade blocking errors. The large content database has many site collections (600+) since
personal sites were stored in it previously before we separated out to a different personal site domain.
Using the Mount-SPContentDatabase command, the 18GB database is upgraded and mounted in 10 minutes. However, the 138GB database is taking a ridiculous amount of time to finish. The upgrade percentage goes up rapidly until it stops at various places, 4.67%, 27.8%, etc. It will stop at these places for hours. Letting the upgrade run to completion, it took 4 days 15 hours to complete.
I've tried also using the -NoB2BSiteUpgrade flag when mounting but there does not appear to be any difference in speed.
We've rebuilt this environment using clean installs, and we have no other service applications running that may be interfering like search or user profile sync. The odd thing is I was able to upgrade this content database six months ago using Windows
Server 2012 (non-R2) and Sharepoint Server 2013 without SP1, and it didn't take such a significant amount of time that it was even noticeable. Other than software, the hardware and virtual environments were exactly the same.
Reviewing volume sizes on the DB, there is plenty of room available (300GB), and CPU/RAM does not appear to be maxed in any way during the upgrade. The only bottle-neck I believe we may have is a relatively slow SAN, but I do not have the specifics on this hardware.
I've seen other questions similar to this asked but no specific solution presented. My question is, what do I do now? I'm one step before involving Microsoft professional services, and I want to make sure I've exhausted all of my options.
Thanks for your insight!
