HP Cisco MDS 9124 Cisco MDS 9000 Family Fabric Manager Configuration Guide, Re - Page 1290

Other Chapter 69 Management Software FAQ Send documentation comments to [email protected] files will fail, giving a "too many open files" I/O or socket exception. The JVM keeps trying to open a file on the NFS mounted drives, fails, and keeps trying to do it until it hits the 1024 file descriptors limit. Workarounds (assuming /tmp is a local disk - replace it with your tmp area): • System Preferences Make sure the system level preferences are stored on a local disk. The system preferences are stored in $JAVA_HOME/.systemPrefs where JAVA_HOME is where you have installed the JDK. If this directory is NFS mounted, then just do the following: $ rm -rf $JAVA_HOME/.systemPrefs< $ mkdir /tmp/.systemPrefs $ ln -s /tmp/.systemPrefs $JAVA_HOME/.systemPrefs The problem with this workaround is that you have to make sure /tmp/.systemPrefs exists on every box where you are using $JAVA_HOME. We recommend installing the JVM as root and on a local disk. • User Preferences If your home directory is NFS mounted and you are getting this problem. Do the following: $ rm -rf $HOME/.java $ mkdir /tmp/.java.$USER $ ln -s /tmp/.java.$USER $HOME/.java For further details, see the following URLs: http://developer.java.sun.com/developer/bugParade/bugs/4673298.html http://developer.java.sun.com/developer/bugParade/bugs/4635353.html Other How do I set the map layout so it stays after Fabric Manager restarted? If you have arranged the map to your liking and would like to "freeze" the map so that the objects stay as they are even after you stop Fabric Manager and restart it again, follow these steps: Step 1 Step 2 Right-click in a blank space in the map. You see a menu. Select Layout > Fix All Nodes from the menu. What do I do when two switches show on the map, but there is only one switch? If two switches show on your map, but you only have one switch, it may be that you have two switches in a non-contiguous VSAN that have the same Domain ID. Fabric Manager uses to look up a switch, and this can cause the fabric discovery to assign links incorrectly between these errant switches. The workaround is to verify that all switches use unique domain IDs within the same VSAN in a physically connected fabric. (The fabric configuration checker will do this task.) 69-12 Cisco MDS 9000 Family Fabric Manager Configuration Guide OL-8007-10, Cisco MDS SAN-OS Release 3.x