Query failed: connection to localhost:9312 failed (errno=111, msg=Connection refused). Invalid B-Tree Node Size - Genius Bar Discussions on AppleInsider Forums Toggle navigation All Forums Recent Posts Sign In Invalid B-Tree Node Size superman4388 Posted: August 27, 2008 8:54PM in Genius Bar edited January 2014 Just got the dreaded B-Tree Node size errorMy question is what do you recommend to fix it? is it fixable?I've heard DiskWarrior has had some success..Is it worth the 100 bucks? Comments Reply 1 of 2 kickaha Posts: 8,760member August 27, 2008 11:10PM Dunno, how much is your data worth to you? For me, DiskWarrior is a freakin' *bargain*, and I always have a backup CD in my satchel. (The original stays at home, protected.) It's saved my butt more than once. Reply 2 of 2 sherman homan Posts: 167member August 28, 2008 8:24AM Ditto Kickaha, Disk Warrior is worth every penny. An invalid B-tree node is probably repairable, and DW can probably fix it. However, nothing can protect from a head crash or the controller card writing garbage, or the motor burning out, etc. You gotta have a backup! Sign In or Register to comment.