With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
fsDiskCapacity
fs Disk Capacity
This attribute describes the total formatted disk size (in bytes) of the disk.
Back to Nortel-Magellan-Passport-FileSystemMIB MIB page.
IPHost Network monitor allows you to monitor fsDiskCapacity on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel multiplexers right now.