In article ,
says...

Dragon CRS-2 launched fine, but evidently had issues once on orbit.

My very limited understanding is right now it arrived on orbit with 3 of the
4 thruster pods not working.

At least 2 pods appear online now with the 3rd coming online.

They have (or will) deploy the solar panels now that 2 are online.

The questions I have a

1) Does anyone know what had happened?

An initial report I read said something about a valve in the
pressurization system(s) not working correctly.

2) Will this impact the ISS Berthing. I can see NASA saying "stay away until
we understand the problem"

Dragon needs 2 out of 4 pods working before they can make their first
orbital change burn. But, it will need 3 out of 4 pods working in order
to approach ISS (according to NASA's rules). Not sure about how far it
has to stay away until it gets 3 out of 4 working.

3) Would these packs be used at all in the case of an abort of the manned
version of the Dragon?

Not sure about that. This would depend greatly on the design of the
system. I know the Super Draco's would be used in an abort, but have no
idea how they're integrated into the design. The devil is in the
details.

Jeff
--
"the perennial claim that hypersonic airbreathing propulsion would
magically make space launch cheaper is nonsense -- LOX is much cheaper
than advanced airbreathing engines, and so are the tanks to put it in
and the extra thrust to carry it." - Henry Spencer