This is from the Republic thread, but even so it is applicable to all E-170 series training right now:

https://www.airlinepilotforums.com/r...-delay-12.html

Starting with post 120 it explains why there is a sim shortage and what you can do when you finally get the call. It's a good read.

An excerpt:


"I'm currently in sims in St. Louis. The sims are so backed up that my sim sessions have been encroaching on the maintenance window (2-6AM). I got out of the sim between 2:30-3:00AM for the first four sims. This morning I walked out of the building at 3:45AM and when we stopped about 25 minutes prior the sim next to us was still moving. The sim shortage is real and will be the limiting factor in training for the foreseeable future."