Nodes in drain state

Hello team,

I am noticing that there are a lot of nodes, both private-dpnc-cpu ([212-213,229]) and shared-cpu (157-158,160,162,165-172,181,184-185,200,206,212-213,220-221,229,296,308-309,311,331) that are in a drain state. Would it be possible to revive these?

Regards,
Deb