DRBD Users Guide 8.0-8.3

Part III. Working with DRBD

Table of Contents

6. Common administrative tasks
Checking DRBD status
Retrieving status with drbd-overview
Status information in /proc/drbd
Connection states
Resource roles
Disk states
Enabling and disabling resources
Enabling resources
Disabling resources
Reconfiguring resources
Promoting and demoting resources
Enabling dual-primary mode
Using on-line device verification
Enabling on-line verification
Invoking on-line verification
Automating on-line verification
Configuring the rate of synchronization
Permanent syncer rate configuration
Temporary syncer rate configuration
Configuring checksum-based synchronization
Configuring I/O error handling strategies
Configuring replication traffic integrity checking
Resizing resources
Growing on-line
Growing off-line
Shrinking on-line
Shrinking off-line
Disabling backing device flushes
Configuring split brain behavior
Split brain notification
Automatic split brain recovery policies
Creating a three-node setup
Device stacking considerations
Configuring a stacked resource
Enabling stacked resources
Using DRBD Proxy
DRBD Proxy deployment considerations
License file
Controlling DRBD Proxy
7. Troubleshooting and error recovery
Dealing with hard drive failure
Manually detaching DRBD from your hard drive
Automatic detach on I/O error
Replacing a failed disk when using internal meta data
Replacing a failed disk when using external meta data
Dealing with node failure
Dealing with temporary secondary node failure
Dealing with temporary primary node failure
Dealing with permanent node failure
Manual split brain recovery