HP StorageWorks 2/128 HP StorageWorks SAN Director 2/128 Fabric OS V4.2.x Rele - Page 22

Issues and Workarounds Switch digital certificates are checked when a switch joins a fabric, either because the switch is added to the fabric or because the switch is booting. Changes to the certificate-if, for example, it is removed or corrupted-might not be noticed until the switch is rebooted. Issues and Workarounds Table 6 lists current issues that customers should be aware of and provides workarounds. Table 6: Issues and Workarounds Issue Modifying switch and CP IP addresses can cause a Telnet hang. Changing the switch IP address before changing the CP IP address may cause the CP IP address to become inaccessible on a subsequent attempt to set the switch IP address. After fastbooting the standby CP of the primary FCS and performing a secfcsfailover before HA is in sync, the old primary FCS switch's active CP panics. Downloading configurations by line too quickly on v4.1 switches causes the switch to panic and crash. New switch IP address does not take effect for Web Tools and Fabric Manager in time. If the IP address on a switch is changed, Fabric Manager posts a message that you must restart Fabric Manager to pick up the changes. After restarting Fabric Manager, it does not pick up the IP address change, retaining the old IP address and causing a complete loss of communication to the switch. Workaround When both CP and switch IP addresses need to be changed: set the CP IP address first and then the switch IP address. If this event occurs, telnet into the switch and set the CP IP address again, accepting the default values. When only a switch IP address needs to be changed, set the CP IP address first (keeping the current value) and then the switch IP address to its new value. When only a CP IP address needs to be changed, there is no problem; just change the CP IP address. Issue switchdisable and switchenable to the segmented switch to cause it to rejoin the fabric. Do not execute repeated configdownload commands in rapid succession. After changing a switch IP address, delete the related fabric from Fabric Manager, restart Fabric Manager, and then rediscover the fabric in Fabric Manager. Under heavy stress conditions, wait a few minutes after restarting Fabric Manager for the new switch IP address to take effect. 22 SAN Director 2/128 Fabric OS 4.2.x Release Notes