No, of course this depends on the severity of the reason for the DRB.
I was at A school from 2004-2008 at don't recall any of my classes that had a DRB, but I would not expect this to go any farther than your A School record...nothing permanent.
Like a lot of things in life, what matters is how you learn from this and improve!
While stationed on the USS Maine we had a Staff pickup from Prototype report as a 3rd Class because of a Captains Mast that reduced his rank from 2nd Class...from the day he reported he busted his butt and ended up getting the reduction in rate removed. He got 2nd class back and all of his time in rate restored, he made 1st Class later that year!
My advice is to take this seriously, get together as a TEAM and fix the problem!
Good luck!