The ESP PROXY started task failed in 2 of 5 LPARs, with S878 issued followed by S0C4.
Same ESP procedure used by 5 LPARs.
Release : 12.0
ESP PROXY procedure has REGION=250M coded in EXEC statement.
Started task unable to obtain sufficient virtual storage.
Change REGION=250M to REGION=0M in procedure and restart the STC.
Installation Guide advises REGION=0M should be coded to ensure sufficient virtual storage
Note any ESP Master procedures should also be changed to REGION=0M.
Refer Set up started task for further information