Alhamdulillah, it's work for my GTAB 2
this step that i applied
1. Download CWM,cwm-root-gtab2.zip,Fix-Recovery
2. Copy cwm-root-gtab2.zip+Fix-Recovery.zip to external sdcard,i used airdroid to do it.
3. Set enabled USB Debugging, from Menu>Menu>Settings>Applications>Development,,Options and check the “USB debugging” option.
4. Now Turn your device off .
5. Boot into Download-Mode (Power+Vol Down) and press vol up to continue.
6. Start Odin,,untick all(autoreboot,repartition,reset time)
7. Choose "GT-P31XX_ClockworkMod-Recovery_X.X.X.X.tar" as PDA
8. Connect your Tab
9. Klik Start
10. When it show PASS, remove usb cable and hold Vol Up + Power, when Samsung Galaxy Tab screen appear release power button but keep vol up.
11. In CWM recovery, install fix recovery and cwm-root.
12. Now reboot your tab. It should be rooted now.
Done!!
Thanks to Fz.hary