|
|
|
| Authored by: eric76 on Friday, December 07 2012 @ 09:21 PM EST |
RAID anything is never an adequate substitute for a backup.
It is strictly a method for decreasing the downtime when the data is
unavailable. One thing it does do is increase the likelihood that you will
suffer a disk failure.
Whether or not you use RAID has no effect on whether or not you need to do
backups.[ Reply to This | Parent | # ]
|
- RAID 6 - Authored by: Wol on Saturday, December 08 2012 @ 03:20 AM EST
| |
| Authored by: ByteJuggler on Monday, December 10 2012 @ 05:31 AM EST |
Fundamentally RAID and Backup solves 2 different problems: RAID solves the
"availability" problem, either availability in terms of speed (RAID0)
or system/data availability/uptime (other raid levels) while
backup on the other hand is aimed at solving the "disaster recovery"
problem. Data deletion, disk failing, circuit board failing, lightning strike,
you name it.
Both solutions generally use data redundancy of one form or another (RAID0 being
the obvious exception), the key point is that you should be careful to not
conflate these 2 problems (something that many people including some IT
professionals sometimes seem to do).
Like others have said, RAID(1-6) is at best a poor plan for disaster recovery as
there's many types of disaster that it won't protect against. Using it as a
replacement for backup is therefore misusing it as a solution to a problem that
it wasn't designed to solve.[ Reply to This | Parent | # ]
|
|
|
|
|
