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Questions tagged [high-availability]

High availability is an architectural consideration often involving degrees of redundancy to insure availability in case of system or component failure.

High availability is an architectural consideration often involving degrees of redundancy to insure availability in case of system or component failure. Highly available systems are commonly implemented in situations where the risk outweighs the cost.

Best practices such as change control, standardized procedures, and monitoring can also enable high availability.

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job interview - technical questions (hardware / network)

i recently had a phone interview, and did not get the job. i'm curious if i didn't get the technical questions correct, or whether there was something else about my interview that caused me to not get the job. how would you answer these…
devlin carnate
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Why do you have to rebuild RAID-1?

If RAID-1 is an exact mirror copy, why must you do a "rebuild" on a RAID-1 drive after the primary drive fails? Will the system suffer from any downtime if the primary drive fails? Are there any hot-backup options RAID levels available that can…
Cyan Lite
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RHEL HA cluster, is it possible to get a notification upon failover

I have configured Linux HA cluster on RHEL 7.1, can i get a notification upon failover or is it possible to start the crashed resource automatically ?
sridhar
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Web-based System High Availability

I'm a SysAdmin in one of the construction sites in a remote place. There is no reasonable internet speed can be reached there except a poor 3G/4G signal coverage which provide the users with non-stable average speed of 1 Mbps. We have a web-based…
ViajanDee
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How to test HA MySQL Database

Recently we have been testing an HA Database solution from a 3rd party provider. I have done some stress tests to see some metrics for Master & Slave status etc, however I would like to test the actual failover. I need a way to test the failover or…
czioutas
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