[DRBD-user] Meta device too small in 8.3.2

[Gianluca Cecchi]

drbd is 8.3.2 and O.S. is F11 x86_64 with kernel 2.6.29.5-191.fc11.x86_64

I read in previous posts that an external meta device of about 4Mb is
sufficient for about 100Gb od drbd device
(http://lists.linbit.com/pipermail/drbd-user/2009-February/011404.html)

In my case with 8.3.2 it seems that 8MB are not enough for 52Gb.
I have:
[root at virtfed ~]# fdisk -l /dev/cciss/c0d0

Disk /dev/cciss/c0d0: 73.3 GB, 73372631040 bytes
255 heads, 32 sectors/track, 17562 cylinders
Units = cylinders of 8160 * 512 = 4177920 bytes
Disk identifier: 0x0005fbbd

           Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d0p1   *           1          51      204799+  83  Linux
Partition 1 does not end on cylinder boundary.
/dev/cciss/c0d0p2              51        4163    16777216   8e  Linux LVM
/dev/cciss/c0d0p3            4163       17559    54658688   8e  Linux LVM
/dev/cciss/c0d0p4           17560       17562       12240   83  Linux

and in drbd.conf

  on virtfed.domainname.com {
    device     /dev/drbd0;
    disk       /dev/cciss/c0d0p3;
    address    192.168.20.1:7788;
    meta-disk  /dev/cciss/c0d0p4[0];
}

but when I run:
drbdadm up r0

I get this:
0: Failure: (112) Meta device too small.
Command 'drbdsetup 0 disk /dev/cciss/c0d0p3 /dev/cciss/c0d0p4 0
--set-defaults --create-device --on-io-error=detach' terminated with
exit code 10

the same happens with the first part of the three commands embedded
into the up above:
drbdadm attach r0
0: Failure: (112) Meta device too small.
Command 'drbdsetup 0 disk /dev/cciss/c0d0p3 /dev/cciss/c0d0p4 0
--set-defaults --create-device --on-io-error=detach' terminated with
exit code 10

Do I have to free up more space in 8.3.2 for meta data? Or I have not
understood the meaning of meta-data and its indexes...?

Gianluca