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WideOrbit Automation for Radio FAQs

Novell: Server Crash, Recovering after a failure

When ever a server has a problem, you can use the following procedures to verify its integrity. 1.Run Vrepair. Server comes back up requesting Server Name ? Run Vrepair and fix all errors. See Doc for Vrepair 2.Verify that LAN drivers are loading. Select the Novell monitor screen. Look at LAN information and verify that a LAN driver is loaded. You should see one or more line in the information window. Each line represents a NIC in the server. If this window is blank, then the NIC in the server has failed or something has happened to change its slot or port value. Most server from us will have two NICs which connect to DCS/Maestro and Traffic/Business network. Failure of the network, will prevent stations from finding their logs and prevent distribution/file transfer for DCS/Maestro systems. See Doc for troubleshooting LAN if you think you have a problem with this. 3.Disk information. Verify that all volumes are mounted by typing VOLUMES at a file server console prompt. Servers that just keep logs, audits and transfer files, will have a SYS volume. ACP server will also have a VOL1 volume. If all volumes are present, check for bad block with would indicate a failing drive from the Novell Monitor screen. Select Disk information from the menu and hit enter on each drive listed. Re-directed blocks (bad blocks) should be at 0. Any other value indicates failing drive. Most server drives will last 5 years. Backup data and replace failing drive if redirected blocks keeps increasing. 4.Adequate memory. Check this value from the monitor/resources menu. Once resources is selected the main window above the menu will display memory statistics. Cache Buffers will be the third value and it will also display the percentage available. Novell uses memory from the main memory pool which is called Cache Buffers. Novell 3.12 can run on as little as 8M of ram to 512Mb of RAM. The larger drive capacity you have and the amount of applications you run determine how much cache is used. It is dynamic value, as you add files to the server more cache is required to keep track of them. Novell recommends you keep this value at 50% or better. We recommend that ACP server keep this above 60% because the ACP NLM requires more RAM. If your cache buffers are below 50% you must add more RAM or risk unstable server operation or failure. 5.Continued operation. If you have working LAN drivers, 0 redirected blocks on each drive, and adequate cache buffers, then your server should operate normally and you should expect it to continue operation. 6.Check Battery in UPS. If the battery in your UPS is more then four years old, you should contact the manufacturer and get a replacement. Normal battery life is 3 to 4 years and you should replace every 3 to 4 years to maintain the integrity of your UPS.