HP StorageWorks 2/140 director product manager user guide - Page 82

Monitoring and Managing the Director • Distance-General distance range for port transmission. This can be either short-to-long distances for the longwave laser LC transceiver or short distances for the shortwave laser LC transceivers. • Media-The Fibre Channel mode and optic size. For the longwave laser LC transceiver, this would be single mode 9 micron. For the shortwave laser LC transceiver, this would be multimode 50 micron or 62.5 micron. • Speed-This will be set to either 1 Gbit per second or 1 Gbit, 2 Gbit per second. Block Port Click to display a check mark and block port transmission. If blocked, a node attached to the port is prevented from logging into the director or communicating with other devices attached to switch ports. A blocked port continuously transmits offline signals (OLS). Click to remove the check mark and unblock the port. If unblocked, a node attached to the port can communicate with the switch and communicate with other nodes attached to the switch. Enable Beaconing Click this to make the amber LED by the port blink on the actual switch and the amber indicator blink for the port in the Hardware View. This enables users to locate the unit where the port is located. When a blinking amber LED indicator displays by a port, an attention indicator ( ) displays below the port's connector in the Port Card View and on the port card in the Hardware View. Diagnostics Click this option to display the Port Diagnostics dialog box. Use this dialog box to run an internal loopback and external loopback test on the port. The Port Diagnostics option enables you to run internal and external loopback tests on any port or all ports on a port card. To use this option, follow the detailed steps in the hp StorageWorks director 2/64 service manual. Channel Wrap (S/390 mode only) Click this while in S/390 mode to display a check mark and allow a channel wrap test to be initiated from an attached host or device. In this test, frames are sent to the director port, then the director echoes the frames back to the sending device to test the channel. The director remains in channel wrap mode until the option is disabled. While in channel wrap mode, the port can only accept echo commands from the host and display as to be blocked to all other communication. Click the check box to remove the check mark and disable channel wrap. 2-22 director product manager user guide