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Lucent Technologies CentreVu Call Management System Release 3 Version 8 Guide
Lucent Technologies CentreVu Call Management System Release 3 Version 8 Guide
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Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Boot problems85 Boot problems4 Generally speaking, most boot problems are the result of one of two problems: either you are trying to boot from the wrong device or the primary boot device is not available. This section suggests remedies for those situations. Trying to boot from the wrong device 4 If you are trying to boot from the wrong device, you must change the boot device. Here is a quick way to do that: 1. Reboot:# /usr/sbin/shutdown -y -g0 -i0 2. From the ok prompt enter:ok> printenv boot-device The system responds:boot-device where is either the word disk, indicating the primary boot device, or the word bootdevice2, indicating the alternate boot device. (This may be followed by additional device names.) To change the boot device, enter the following command: You should have set up bootdevice2 as the alternate boot device when you installed disk mirroring. Primary boot device is not available 4 If the primary boot device is not available, you must change to the secondary boot device. Changing to the secondary boot device is a matter of entering, from the ok prompt, the following command: ok> setenv boot-device bootdevice2 You should have set up bootdevice2 as the alternate boot device when you installed mirroring. ok setenv boot-device bootdevice2 - or - ok setenv boot-device disk
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Boot problems86 Excessive reboot time 4 Problem: The system takes a long time to come back up after a reboot and seems to stop at the configuring multicast point. Possible workaround: The Enterprise 3000, by default, tries to configure itself as a router/gateway. To avoid that problem, execute the following command before rebooting: touch /etc/notrouter That command tells the startup scripts that this system should not be configured as a router.
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Log files87 Log files4 A disk-mirrored system contains the following system log files: If a log seems to indicate a problem, it may take an experienced troubleshooter to determine the nature of the problem. The logs are checked each night by the chkDisks crontab, which is able to determine whether any potential or actual drive problems have been logged. The results of the determination are logged to /olds/elog and mailed to the root user. If chkDisks is not running each night, verify that it is available in the /olds directory by entering the following command: If the file is not found, load the CMS CD into the CD-ROM drive and enter the following commands: To test chkDisks, simply execute it by entering the following command:File Name Description /var/adm/messages Contains all console error messages, including hardware messages. (For an example of how to use this log to detect a bad disk drive, see Replacing Faulty Disks” in Chapter 3.) /olds/elog Contains olds error messages. Most messages are logged when setting up the system or when making changes to the disk setup. # ls /olds/chkDisks # cp /cms/rdonly/olds_install/chkDisks /olds # chmod +x /olds/chkDisks # /olds/chkDisks
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages88 Error messages4 The table that follows lists and explains error messages you can receive related to Solstice DiskSuite and disk mirroring. The messages are presented in alphabetical order, ignoring special characters and replacement strings. (For example, you would find the message “ filename restored” in alphabetical order by the word restored.) Error Messages Message:All data on cms filesystems will be removed and filesystems will be unmirrored, are you sure? Explanation:Standard warning message for olds -mirrored -cleanup command. Response:Always use an olds -mirrored -cleanup with caution, keeping in mind that a backup will be needed to recover any CMS data in the /cms filesystem. Use the command only to set up your system from scratch. Message:Attempt an operation on a submirror that has erred components. Explanation:Component needs maintenance before the operation can be carried out. Response:1. Execute a metastat command. 2. Examine the output for the Invoke line and execute the command named in that line. For example: # metareplace -e d13 c0t0d0s0 3. Reboot system. Message:CDROM must not be present, remove CD Explanation:In order for the command to execute, the CDROM drive must be empty. Response:1. Enter the command:eject cdrom 2. Remove the CD from the drive tray. 3. Close the drive tray.
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages89 Message:component is attached metattach: hostname: d21: growing of metadevice delayed Explanation:Submirrors are out of sync. Response:Enter the command:metasync d21 This command effectively resyncs submirrors. Message:device: devicenamecannot be setup or does not exist Explanation:The device named is a CD-ROM drive or is not available and will not be used in the Solstice DiskSuite setup. Response:Verify that the device should not be used. Message:device: devicenamewill not be used Explanation:The device named is a CD-ROM drive or is not available and will not be used in the Solstice DiskSuite setup. Response:If the device is c0t6d0, it is a CD-ROM drive and no further action is required. If the device is a disk, verify the sanity of the message: check device availability, for example, or use a format command to view partition sizes, etc. Message:disk diskname already setup, exiting... Explanation:You are trying to attach a disk that is already attached or is part of the base configuration. No response is necessary. Message:disk: diskname slice 1 is not partitioned correctly Explanation:Disk is partitioned incorrectly, or the olds script was run without the -mirrored option. Response:Try rerunning the command with the -mirrored option. If that doesn’t work, repartition the disk. If diskname is the primary boot disk, you must reload Solaris, repartitioning the disk correctly in the process. If diskname is not the primary boot disk, you can repartition it with the Solaris format command. Error Messages (Continued)
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages90 Message:/etc/system has been updated since the last reboot. CMS cannot run without an up- to-date /etc/system file. Explanation:/etc/system can change when a particular Solaris patch is applied to the system or when state database replicas are removed and re-added during a boot disk replacement. Response:Reboot the system. Message:Failed activating new replicas, replicas already active, or a second disk does not exist Explanation:The system does not have all the replicas it needs to be functional (it needs at least three), or the replicas you attempted to create already exist. Response:Use metadb -i to verify that at least three replicas are active. If not, add replicas (see Chapter 3). Message:Failed: disk c xtyd0 or cx’ty’d0 already setup, exiting ... Explanation:You are trying to set up a disk that is already a part of the configuration. You probably mistyped the name. Response:Set up the disk with the appropriate device name. Message:Illegal Request, cannot setup Response:Check your hardware configuration and your usage of the olds command. Message:in order to attach disk, /cms must already be mounted, exiting... Response:Mount cms with this command:mount /cms Message:ksh: command: not found Explanation:Command does not exist or is not in the execution path. Response:Use the entire path—as pathname/command—or add it to the execution path with the following command: # export PATH=$PATH: pathname The path of the metastat, metadb, metattach , and metadetach commands is /usr/opt/SUNWmd/sbin; the path of the olds command is /olds Error Messages (Continued)
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages91 Message:metadb: hostname: cxtyd0sz has a metadevice database replica Explanation:The slice named in the message already has a replica. Response:If you really need to add another replica, choose a different slice. Message:metadetach: systemname: d21: resync in progress Explanation:You cannot detach a metadevice while a resync is in progress. Response:Try again later. To find out how far along the resync has progressed, enter a metastat command. Message:must have at least 2 databases Response:Add a state database replica and retry the command. Message:No disks found! Internal error. Response:Add the state database replicas and retry the command. If the message persists, telephone the National Customer Care Center (1-800-242-2121) or contact your Lucent distributor or customer representative. Message:No more space on device Explanation:Occurs during a restore cpio command: cpio -icmudf -C10240 -I input-device -M Enter tape.. ../cms*.. The “/cms” entry has probably been mistyped. Response:Remove the /cms directory and all files and try again. Message: command: not found Explanation:Command does not exist or is not in the execution path. Response:Use the entire path—as pathname/command —or add it to the execution path with the following command: # export PATH=$PATH: pathname The path of the metastat, metadb, metattach , and metadetach commands is /usr/opt/SUNWmd/sbin; the path of the olds command is /olds Error Messages (Continued)
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages92 Message:panic: vfs_mountroot: cannot mount root rebooting... resetting.... Explanation:The system is misconfigured. Response:There are two possible causes: 1. You attempted to boot from a nonbootable device. Check the device name and try again. The alternate boot device may be set up incorrectly. 2. You failed to reboot after mirroring root (olds -mirrored -setroot ), leaving the system unstable. In that case, do the following: a. Boot from the CD. b. Mount /dev/dsk/c0t0d0s0 /a (or whatever partition is your root partition). c. Remove Solstice DiskSuite entries from /a/etc/system (i.e. everything between tags mddb ...) d. Remove /a/etc/opt/SUNWmd/md* files, i.e.: rm /a/etc/opt/SUNWmd/md* e. Replace /dev/md/rdsk/d21 entries with /dev/rdsk/c0t3d0s0 (or whatever your boot device name is). f. Boot: /usr/sbin/shutdown -y -g0 -i6 g. If the system still refuses to reboot, reload Solaris. Message: filename restored from filebackup Explanation:The action failed, and the md.tab file was restored from the previous version. Consequently, the configuration files reflect the previous system setup. Response:Determine the cause of the problem and try again. Message:resync in progress Response:The command entered cannot be executed because the mirrors are currently being resynched. Try again later. You can tell whether a resync is in progress by entering a metastat command. Error Messages (Continued)
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages93 Message:stale databases Response:The state database contains old information. Recreate (see “ Recreating the Replicas and Reattaching the Disk” in Chapter 3). Message:state database information not found, DiskSuite must not be installed Response:Install and set up Solstice DiskSuite before doing this task. Message:Submirror too small to attach Explanation:The submirrors d11 and d12 (or d19 and d20) do not match. You have forgotten to label one or more disks, or you have partitioned one or more disks incorrectly. Response:1. Determine the specific cause of the message by examining, via the format and partition commands, the disks involved. 2. If the message was a response to a metattach d13 d12 command, enter the following commands: # metaclear d12 # metadb -d -f /dev/dsk/c0td0s1 (where is the second boot disk) 3. If the message was a response to a metattach d21 d20 command, enter the following command: # metaclear d20 4. Label or repartition the disks in error, as needed. 5. Restart the mirror upgrade process. Note that you need not recreate the md.tab entries the second time through the procedure. Message:syntax error Response:Check the syntax and usage of the command. Reenter the command, correcting syntax errors you have made.Error Messages (Continued)
Troubleshooting CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems Error messages94 Message:The disk is not recognized by cms. Explanation:The disk is either not a standard Sun disk drive, or is larger than 4.2 gigabytes. Response:Replace the disk with a standard Sun disk drive of not more than 4.2 gigabytes capacity. Message:The DiskSuite Software must be installed to run this script. Response:Install Solstice DiskSuite software before attempting to run this script. Message:The file filename could not be restored. Explanation:The previous action failed, and the md.tab or vfstab file could not be copied back. The existing files may not accurately reflect the system environment. Response:Check the file and repair it if necessary. See “How to Set Up State Database Replicas” in Chapter 3. Message:The /cms filesystem needs to be mounted Explanation: /cms must be mounted for the command to work. Response:Mount /cms with the command:mount /cms Error Messages (Continued)