Zimbra2 /proc/drbd after invalidate

@zimbra2 ~]# cat /proc/drbd
version: 8.0.13 (api:86/proto:86)
GIT-hash: ee3ad77563d2e87171a3da17cc002ddfd1677dbe build by buildsvn@c5-x8664-build, 2008-10-03 10:12:56
 0: cs:StandAlone st:Secondary/Unknown ds:Inconsistent/DUnknown   r---
    ns:0 nr:0 dw:912 dr:41418 al:18 bm:62 lo:0 pe:0 ua:0 ap:0
        resync: used:0/61 hits:0 misses:0 starving:0 dirty:0 changed:0
        act_log: used:0/127 hits:210 misses:18 starving:0 dirty:0 changed:18