How can LLT and GAB manually be unloaded and loaded on IBM AIX ?
Article ID: 100013153
Updated On:
Resolution
Steps to stop and unload Global Atomic Broadcast (GAB)
1. Check if GAB is loaded:
# /usr/sbin/lsdev -CHc gab name status location description gab Available N/A 2. Check if GAB is running:
# /sbin/gabconfig -l GAB Driver Configuration Driver state : ConfiguredPartition arbitration: Disabled Control port seed : Enabled Halt on process death: Disabled Missed heartbeat halt: Disabled Halt on rejoin : Disabled Keep on killing : Disabled Restart : Disabled Node count : 0 Disk HB interval (ms): 1000 Disk HB miss count : 4 IOFENCE timeout (ms) : 15000 Stable timeout (ms) : 5000 3. Stop GAB and verify:
# /sbin/gabconfig -U # /sbin/gabconfig -l GAB Driver Configuration Driver state : UnconfiguredPartition arbitration: Disabled Control port seed : Disabled Halt on process death: Disabled Missed heartbeat halt: Disabled Halt on rejoin : Disabled Keep on killing : Disabled Restart : Disabled Node count : 0 Disk HB interval (ms): 1000 Disk HB miss count : 4 IOFENCE timeout (ms) : 15000 Stable timeout (ms) : 5000 4. Unload GAB and verify:
# /usr/sbin/rmdev -l gab gab Defined # /usr/sbin/lsdev -CHc gab name status location description gab Defined N/A Steps to stop and unload Low Latency Transport (LLT)
1. Check if LLT is loaded:
# /usr/sbin/strload -q -d llt llt: yes 2. Check if LLT is running:
# /sbin/lltconfig LLT is running 3. Stop LLT and verify:
# /sbin/lltconfig -U lltconfig: this will attempt to stop and reset LLT. Confirm (y/n)? y # /sbin/lltconfig LLT is not running 4. Unload LLT and verify:
# /usr/sbin/strload -u -d llt # /usr/sbin/strload -q -d llt llt: no Steps to load and start LLT (provided LLT is not loaded)
1. Load LLT and verify:
# /usr/sbin/strload -d llt # /usr/sbin/strload -q -d llt llt: yes 2. Start LLT and verify:
# /sbin/lltconfig -c # /sbin/lltconfig LLT is running Steps to load and start GAB (provided GAB is not loaded)
1.Load GAB and verify:
# /usr/sbin/mkdev -l gab gab Available # /usr/sbin/lsdev -CHc gab name status location description gab Available N/A 2. Start GAB and verify:
# /sbin/gabconfig -c # /sbin/gabconfig -l GAB Driver Configuration Driver state : ConfiguredPartition arbitration: Disabled Control port seed : Enabled Halt on process death: Disabled Missed heartbeat halt: Disabled Halt on rejoin : Disabled Keep on killing : Disabled Restart : Enabled Node count : 0 Disk HB interval (ms): 1000 Disk HB miss count : 4 IOFENCE timeout (ms) : 15000 Stable timeout (ms) : 5000 # /opt/VRTSvcs/bin/hastart (on all nodes)
Issue/Introduction
How can LLT and GAB manually be unloaded and loaded on IBM AIX ?
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