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TAPE BACKUPS
Can tape backups be regarded as providing fault tolerance?
This came up in a discussion. Can anyone help, thanks
This came up in a discussion. Can anyone help, thanks
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bighornsheep
Member Posts: 1,506
Yes...backups in general is what fault tolerence is all about.Jack of all trades, master of none -
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deneb829
Member Posts: 292
I have heard it more in terms of the system continuing to operate even after a hardware failure. Like RAID 1 and RAID 5, or dual power supplies or SCSI or RAID controllers. I think tape backup may be considered more disater recovery than fault tolerance.There are only 10 types of people in this world - People who understand binary and people who do not. -
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sprkymrk
Member Posts: 4,884 ■■■□□□□□□□
Deneb829 is correct. Though Fault Tolerance and Disaster Recovery are closely related, there are subtle differences that you need to know in regards to the Network+ exam. See the technotes here:
http://www.techexams.net/technotes/networkplus/fault_disast.shtml
That said, some definitions of Fault Tolerance do include tape backups, though not many. See:
http://www.google.com/search?hl=en&q=define%3A%22fault+tolerance%22
However, for the Network+ exam, make sure to keep them seperate in your mind.All things are possible, only believe. -
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theseman
Member Posts: 230
Agreed ^
Try to think of it like this:
Fault tolerance = providing redundancy, eliminiating single points of possible failure. i.e. Having two DNS servers.
Disaster Recovery = how efficiently and quickly you can recover from some type of failure (hardware, network etc) i.e. Having good backups.