Calendar Server.1
ces, multi-valued, UTF 8
Stores regular expressions used to divide the LDAP database between servers.
icsRegularExpressions: A–F,G–L,M–T,U–Z
A–F, G–L, M–T, U–Z are possible values for instances of this attribute and describe a database divided alphabetically between four servers.
1.3.6.1.4.1.42.2.27.9.1.2