HP Cisco MDS 9124 Cisco MDS 9000 Family Fabric Manager Configuration Guide - R - Page 1378

UNIX Issues Chapter 67 Management Software FAQ Send documentation comments to [email protected] What do I do when SCP/SFTP fails when a file is copied from local machine to the switch? If there are embedded spaces in the file path, then windows scp/sftp might fail. You will get a copyDeviceBusy error from the switch. In tools such as the License Wizard either make sure tftp copy can be done or pick filenames with no spaces. UNIX Issues What do I do when the parent menus disappear? Displaying a submenu may occasionally cause the parent menu to disappear. For more details on this bug, refer to: http://developer.java.sun.com/developer/bugParade/bugs/4470374.html. What do I do when the web browser cannot find web server even it is running? This can happens when web browser uses proxy server. To check that for Internet Explorer, choose tools in menu, then choose internet options, then choose connection subpanel, then click Lan Setting. A dialog comes up, verify the proxy setting. How do I fix a "too many open files" error? If you are running the JVM (Java Virtual Machine) on Linux and the drive where Java is installed or your home directory is NFS mounted, there is an open bug against the Sun JDK about errors acquiring file locks. The symptoms for the Fabric Manager are that launching a Device Manager or saving/opening 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 67-12 Cisco MDS 9000 Family Fabric Manager Configuration Guide OL-17256-03, Cisco MDS NX-OS Release 4.x