Cannot Access Database: Sybase

At first my office had blackout and sybase server unable to shutdown properly.

I have 4 database in that sybase server on unix AIX5 and only 3 database up and can be access after restart except for 1 database(mydb) show message recovery failed:

00:00000:00001:2008/02/02 21:08:30.73 server Recovering database 'mydb'.
00:00000:00001:2008/02/02 21:08:30.76 server Starting diagnostics for read fail
ure:
00:00000:00001:2008/02/02 21:08:30.77 server Device Information:
Device number = 8
Phyname = /data/my_db/mydbdatadev
00:00000:00001:2008/02/02 21:08:30.77 server Buffer Information:
Buf addr = 0x5068965c, Mass addr = 0x5068965c
Buf pageno = 114268, Mass pageno = 114268, dbid
= 6
00:00000:00001:2008/02/02 21:08:30.77 server
Buf virtpg = 134331998, Mass virtpg = 134331998
Buf stat = 0x1, Mass stat = 0x1008
Mass keep = 1, Mass awaited = 0

00:00000:00001:2008/02/02 21:08:30.77 server Page Information from first read a
ttempt: Page read from disk ppageno = 114268, pobjid = 1680005985, pindid = 255
pnextpg = 0, pprevpg = 0 plevel = 241, pstat = 0x4030 pts_hi = 0, pts_lo = 52098
23
00:00000:00001:2008/02/02 21:08:30.77 server Page Information from second read
attempt: Page read from disk ppageno = 114268, pobjid = 1680005985, pindid = 255
pnextpg = 0, pprevpg = 0 plevel = 241, pstat = 0x4030 pts_hi = 0, pts_lo = 5209
823

00:00000:00001:2008/02/02 21:08:30.77 server SDES Information:
dbid = 6, objid = 8, scur.pageid = 114268
sstat = 0x0, sstat2 = 0x4000000
suid = 1, cacheid = 0
00:00000:00001:2008/02/02 21:08:30.77 server PSS Information:
pstat = 0x1000, pcurdb = 6, pspid = 1
p2stat = 0x110, p3stat = 0x1000081e
plasterror = 0, preverror = 0, pattention = 0

00:00000:00001:2008/02/02 21:08:30.77 server End diagnostics for read failure:
00:00000:00001:2008/02/02 21:08:30.77 server Run the DBCC command 'dbcc tableal
loc' for both the objects 8, 1680005985
00:00000:00001:2008/02/02 21:08:30.78 server Error: 605, Severity: 21, State: 1
00:00000:00001:2008/02/02 21:08:30.78 server An attempt was made to fetch logic
al page '114268' in database 'mydb' from cache 'default data cache'. Page belo
ngs to object with id '1680005985', not to object 'syslogs'.
00:00000:00001:2008/02/02 21:08:30.80 server Error: 3414, Severity: 21, State:
1
00:00000:00001:2008/02/02 21:08:30.80 server Database 'mydb' (dbid 6): Recove
ry failed. Check the SQL Server errorlog for further information as to the cause

then i used sql to dbcc mydb and this message come out:
server message:number 921,severity 14
server 'mydb_prod',line1:
database 'mydb' has not been recovered yet - please wait and try again

tq for reply, any added information please let me know.
please help.