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Storage Foundation for Sybase ASE CE 7.4 Administrator's Guide - Linux
Last Published:
2018-05-30
Product(s):
InfoScale & Storage Foundation (7.4)
Platform: Linux
- Overview of Storage Foundation for Sybase ASE CE
- About Storage Foundation for Sybase ASE CE
- How SF Sybase CE works (high-level perspective)
- About SF Sybase CE components
- About optional features in SF Sybase CE
- How the agent makes Sybase highly available
- About Veritas InfoScale Operations Manager
- Administering SF Sybase CE and its components
- Administering SF Sybase CE
- Setting the environment variables for SF Sybase CE
- Starting or stopping SF Sybase CE on each node
- Applying operating system updates on SF Sybase CE nodes
- Adding storage to an SF Sybase CE cluster
- Recovering from storage failure
- Enhancing the performance of SF Sybase CE clusters
- Verifying the nodes in an SF Sybase CE cluster
- Administering VCS
- Viewing available Veritas device drivers
- Starting and stopping VCS
- Environment variables to start and stop VCS modules
- Adding and removing LLT links
- Configuring aggregated interfaces under LLT
- Displaying the cluster details and LLT version for LLT links
- Configuring destination-based load balancing for LLT
- Enabling and disabling intelligent resource monitoring for agents manually
- Administering the AMF kernel driver
- Administering I/O fencing
- About administering I/O fencing
- About the vxfentsthdw utility
- General guidelines for using the vxfentsthdw utility
- About the vxfentsthdw command options
- Testing the coordinator disk group using the -c option of vxfentsthdw
- Performing non-destructive testing on the disks using the -r option
- Testing the shared disks using the vxfentsthdw -m option
- Testing the shared disks listed in a file using the vxfentsthdw -f option
- Testing all the disks in a disk group using the vxfentsthdw -g option
- Testing a disk with existing keys
- About the vxfenadm utility
- About the vxfenclearpre utility
- About the vxfenswap utility
- Enabling or disabling the preferred fencing policy
- About I/O fencing log files
- Administering CVM
- Establishing CVM cluster membership manually
- Changing the CVM master manually
- Importing a shared disk group manually
- Deporting a shared disk group manually
- Verifying if CVM is running in an SF Sybase CE cluster
- Verifying CVM membership state
- Verifying the state of CVM shared disk groups
- Verifying the activation mode
- Administering CFS
- Administering the Sybase agent
- Sybase agent functions
- Monitoring options for the Sybase agent
- Using the IPC Cleanup feature for the Sybase agent
- Configuring the service group Sybase using the command line
- Bringing the Sybase service group online
- Taking the Sybase service group offline
- Modifying the Sybase service group configuration
- Viewing the agent log for Sybase
- Administering SF Sybase CE
- Troubleshooting SF Sybase CE
- About troubleshooting SF Sybase CE
- Restarting the installer after a failed network connection
- Installer cannot create UUID for the cluster
- Troubleshooting I/O fencing
- The vxfentsthdw utility fails when SCSI TEST UNIT READY command fails
- Node is unable to join cluster while another node is being ejected
- System panics to prevent potential data corruption
- Cluster ID on the I/O fencing key of coordinator disk does not match the local cluster's ID
- Fencing startup reports preexisting split-brain
- Registered keys are lost on the coordinator disks
- Replacing defective disks when the cluster is offline
- Troubleshooting Cluster Volume Manager in SF Sybase CE clusters
- Restoring communication between host and disks after cable disconnection
- Shared disk group cannot be imported in SF Sybase CE cluster
- Error importing shared disk groups in SF Sybase CE cluster
- Unable to start CVM in SF Sybase CE cluster
- CVM group is not online after adding a node to the SF Sybase CE cluster
- CVMVolDg not online even though CVMCluster is online in SF Sybase CE cluster
- Shared disks not visible in SF Sybase CE cluster
- Troubleshooting interconnects
- Troubleshooting Sybase ASE CE
- Prevention and recovery strategies
- Prevention and recovery strategies
- Verification of GAB ports in SF Sybase CE cluster
- Examining GAB seed membership
- Manual GAB membership seeding
- Evaluating VCS I/O fencing ports
- Verifying normal functioning of VCS I/O fencing
- Managing SCSI-3 PR keys in SF Sybase CE cluster
- Identifying a faulty coordinator LUN
- Starting shared volumes manually
- Listing all the CVM shared disks
- I/O Fencing kernel logs
- Prevention and recovery strategies
- Tunable parameters
- Appendix A. Error messages
Collecting important CVM logs
You need to stop and restart the cluster to collect detailed CVM TIME_JOIN messages.
To collect detailed CVM TIME_JOIN messages
- On all the nodes in the cluster, perform the following steps.
Edit the /opt/VRTSvcs/bin/CVMCluster/online script.
Insert the '-T' option to the following string.
Original string: clust_run='LANG=C LC_MESSAGES=C $VXCLUSTADM -m vcs -t $TRANSPORT startnode 2> $CVM_ERR_FILE'
Modified string: clust_run='LANG=C LC_MESSAGES=C $VXCLUSTADM -T -d -m vcs -t $TRANSPORT startnode 2> $CVM_ERR_FILE'
- Stop the cluster.
# hastop -all
- Start the cluster.
# hastart
At this point, CVM TIME_JOIN messages display in the
/var/log/messagesfile and on the console.
You can also enable vxconfigd daemon logging as follows:
# vxdctl debug 9 /var/adm/vx/vxconfigd_debug.out
The debug information that is enabled is accumulated in the system console log and in the text file /var/adm/vx/vxconfigd_debug.out. '9' represents the level of debugging. '1' represents minimal debugging. '9' represents verbose output.
Caution:
Turning on vxconfigd debugging degrades VxVM performance. Use vxconfigd debugging with discretion in a production environment.
To disable vxconfigd debugging:
# vxdctl debug 0
The CVM kernel message dump can be collected on a live node as follows:
# /etc/vx/diag.d/kmsgdump -d 2000 > \ /var/adm/vx/kmsgdump.out