Making changes to olc configuration

[Prentice Bisbal <pbisbal@pppl.gov>]

Thanks to your help, I've discovered I need to increase the size of my 
mdb MaxSize. I created the following LDIF file to increase it by a 
factor of 10:

dn: olcDatabase={1}mdb,cn=config
changetype: modify
add: olcDbMaxSize
olcDbMaxSize: 104857600

Now I can make changes to the LDAP directory itself, but when I try to 
make changes to the OLC data, like this change, I get an Insufficient 
access error:

$ ldapmodify -v  -f mdb.ldif
add olcDbMaxSize:
    104857600
modifying entry "olcDatabase={1}mdb,cn=config"
ldap_modify: Insufficient access (50)

How can I overcome this and give myself access to make these changes in 
the future? In the past I was advised to do a slapcat of the OLC 
database, make my changes, and then do a slapadd of the modified LDIF 
file.. Unfortunately, I forget details of that magical incantation, and 
I'd also like to make so I have the necessary privileges to make these 
changes in the future through LDIF changes like the one above.

All you help is greatly appreciated. I know these answers are probably 
in the manual, and "RTFM" might be justified, but I'm a little under the 
gun trying to get a formerly working system up and running again, and I 
still haven't fully grasped OLC yet.

--
Prentice