Keywords - H
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- handle
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- under /proc/mount
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The /proc/mount directory ·
- hard link
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- and attributes structure
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The extended attributes structure ·
- high availability
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- active server
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The /proc/mount directory ·
- and standby servers
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Cold, warm, and hot standby ·
- and system startup
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System startup and HA ·
- arranging for obituaries
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Obituaries ·
- availability definition
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Terminology ·
- availability formula
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Terminology ·
- Big Brother definition
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Overlords, or Big Brother is watching you ·
- cascade failure definition
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Cascade failures ·
- cascade failure prevention
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Cascade failures ·
- client and failover
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Graceful fail-over ·
- client and failover tasks
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Graceful fail-over ·
- cold standby
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Achieving cold standby ·
Cold, warm, and hot standby ·
- cold standby definition
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Cold, warm, and hot standby ·
- comparison of cold, warm, and hot standby
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Cold, warm, and hot standby ·
- complexity of hot standby
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Achieving hot standby ·
- continuous availability definition
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Terminology ·
- decreasing MTTR
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Cold, warm, and hot standby ·
Decreasing the MTTR ·
- definition
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High Availability ·
- design goals
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Decreasing the MTTR ·
- detecting failure
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Detecting failure ·
- example using web servers
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Parallel calculations ·
- exponential back-off policy
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Policies ·
- failover definition
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Graceful fail-over ·
- failover example
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Graceful fail-over ·
- failure modes
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Failure modes and recovery models ·
- fault tolerance definition
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Graceful fail-over ·
- formula for aggregate components
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Aggregate calculations ·
- formula for more than two components
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Parallel calculations ·
- hot standby
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Achieving hot standby ·
Cold, warm, and hot standby ·
- hot standby definition
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Cold, warm, and hot standby ·
- hot standby example
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Achieving hot standby ·
- in-service downgrade
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Policies ·
- in-service upgrade as a failover mode
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In-service upgrades ·
- in-service upgrade definition
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In-service upgrades ·
- increasing availability
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Increasing availability ·
- increasing MTBF
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Increasing the MTBF ·
- monitoring health of process
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Achieving hot standby ·
- monitoring system sanity
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Overlords, or Big Brother is watching you ·
- monitoring the overlord
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·
Overlords, or Big Brother is watching you ·
- MTBF definition
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Terminology ·
- MTTR definition
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Terminology ·
- obituaries in case of failure
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·
Detecting failure ·
- obituaries with primary and standby servers
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·
Obituaries ·
- overlord and cold standby
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Achieving cold standby ·
- overlord and failover
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Graceful fail-over ·
- overlord and warm standby
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Achieving warm standby ·
- overlord definition
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Overlords, or Big Brother is watching you ·
- overlord responsibilities
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Detecting failure ·
- overlord's role in in-service upgrades
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In-service upgrades ·
- parallel component availability formula
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Parallel calculations ·
- parallel components
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Parallel versus serial ·
- parallel components in hardware
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Parallel calculations ·
- parallel components in software
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Parallel calculations ·
- pathname space shadows
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Using shadows ·
- perceptions about
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Lies, damn lies, and statistics ·
Series calculations ·
- policy definition
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Policies ·
- polling for failure
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Detecting failure ·
- primary process definition
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Achieving warm standby ·
- primary/standby architecture
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Obituaries ·
- problems with synchronization
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Problems ·
- process restart policy
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Policies ·
- recover models
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Failure modes and recovery models ·
- redundancy
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Parallel calculations ·
- requirements for
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Lies, damn lies, and statistics ·
- restarting failed components
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Overlords, or Big Brother is watching you ·
- secondary as client of primary
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Obituaries ·
- secondary as server for primary
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Obituaries ·
- serial component availability formula
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Series calculations ·
- serial components
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Parallel versus serial ·
- serial port
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The /proc/mount directory ·
- simple overlord script example
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RK drones on about his home systems again ·
- standby as pathname space shadow
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Using shadows ·
- standby process definition
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Achieving warm standby ·
- standby server
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The /proc/mount directory ·
- synchronizing standby with primary
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Achieving hot standby ·
- table of availabilities
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Lies, damn lies, and statistics ·
- unavailability definition
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Series calculations ·
- understanding availability
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·
Lies, damn lies, and statistics ·
- warm standby
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Achieving warm standby ·
Cold, warm, and hot standby ·
- warm standby definition
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Cold, warm, and hot standby ·
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