hi,
for your information, you also can see the maximum with the command
show ip dhcp statistics
#show ip dhcp statistics
DHCPv4 disabled; DHCPv6 disabled
DHCP Pools
----------
Network Name Type Active Configured leases Active leases Free leases Expired leases Abandoned leases
------------ ---- ------ ----------------- ------------- ----------- -------------- ----------------
Current leases 0
Total leases 1024
NOTE: To make a DHCPv6 pool active, ensure that the pool name is added in vlan interface
BTW: this is from a 7010 controller ;-)