Redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability of the system, usually in the case of a backup or fail-safe.

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13
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21answers
5k views

When is RAID worth the trouble?

In our shop we're faithfully using RAID in all our workstations, probably just because that seems to be the way it ought to be done. I'm talking about workstations for scientific simulations, using ...
2
votes
6answers
229 views

Upgrade server software without blackout period

Say I've got a web application running on a Linux VPS box. In order to apply kernel upgrades and some security fixes, I'll need to reboot the server. During this period, the server isn't reachable. ...
1
vote
2answers
479 views

Data Backup redundancy/backups

I am looking at setting up a backup solution... well including in my backup solution actually... an external harddrive on my main file server. I then use something like Microsoft SyncToy to 'sync' ...
5
votes
3answers
539 views

SQL Server clustering options

Can anyone give an high-level overview of the options available for SQL Server clustering, their pros and cons? Is it better to use Microsoft Clustering services or SQL Server native clustering? Does ...