my ipad 2 is disabled...connect to itunes

Usually people don't do backups when they don't have anything on the device that they are concerned about losing. I presume that was your situation.

All your music you purchased from the iTunes Store will still be saved, the books you purchased from Apple's store will still be saved, any movies you purchased from iTunes will still be saved, and any apps you purchased at the Apple App Store will still be there for you to redownload again. So, pretty much everything you bought from Apple, Apple saves for you.

IIt is too late to backup the iPad now. You will lose all of your data. You have to restore the iPad in order to unlock it.

Forgot passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

You should be able to download most of your paid content again.

Download past purchases - Apple Support

BTW... Apple doesn't save anything for you if it is no longer available in the store. If it has been pulled from the stores for any reason, you will not be able to download it again.

For future reference, and in case you want to do a backup for any future events that may occur, here are a few Apple Support articles on backups you may want to look at ...

Choosing an iOS Backup Method (Should I Use iTunes or iCloud to back up ...)

https://support.apple.com/kb/HT5262

Back up and Restore your iOS Device with iCloud or iTunes

http://support.apple.com/kb/ht1766

iTunes: About iOS Backups

http://support.apple.com/kb/ht4946

Create and Delete iPhone, iPad and iPod Touch Backups in iTunes

http://support.apple.com/kb/ht4946

iOS: Troubleshooting Encrypted Backups

http://support.apple.com/kb/TS5162