LSM internals and troubleshooting

Prerequisites

To get the most from this course, you should be able to:

• Install and manage an HP Tru64 UNIX system
• Install layered products and register license PAKs
• Troubleshoot the operating system and make adjustments to improve performance
• Manage traditional UNIX disk partitions
• Perform typical UNIX system management tasks
• Use the HP Tru64 UNIX kernel configuration tools
• Set up and manage the LSM and hardware RAID using the command line or graphical user interface

Audience

This course is designed for CS support-level engineers who service or support LSM configurations.

Ways to save

Course outline

• LSM concepts
• Introducing the Logical Storage Manager
• Using physical and logical storage
• Reviewing storage management concepts
• Maintaining LSM configuration information
• Listing more files an d parameters
• Using daemons and drivers
• Initializing LSM
• LSM sources and debugging
• Creating the LSM porting model
• Organizing source directories
• Explaining message passing
• Debugging with LSM source code
• Debugging an LSM command
• Debugging the vold daemon
• Debugging the UNIX kernel
• Saving console output
• LSM daemons and commands
• Initializing the volume configuration daemon
• Communicating with the volume daemon
• Using the volume extended I/O daemon
• Using LSM interfaces
• Describing command interface to the vold daemon
• LSM algorithms
• Reviewing LSM commands
• Adding disks to LSM
• Creating a new disk group
• Initializing disks in an LSM configuration
• Adding disks to a disk group
• Creating subdisks, plexes and volumes
• Removing and moving a disk group
• Encapsulating and mirroring
• Performing synchronization
• Dirty-region logging
• Describing hot-sparring
• Troubleshooting LSM
• Explaining LSM troubleshooting practices
• Case studies