[CentOS] CentOS Server Backup Options

m.roth at 5-cent.us m.roth at 5-cent.us
Tue Mar 13 14:46:42 EDT 2012


Markus Falb wrote:
> On 12.3.2012 01:37, Mark LaPierre wrote:
>> Tape, and tape drives, have a bad reputation.  They are difficult and
>> time consuming to verify.
>
> Harddisks have a bad reputation too. They fail regulary.
>
Not that frequently.

> Anyway, I would not feel comfortable about backing up data residing on a
> harddisk to another harddisk. I believe that a backup media has to
> provide different characteristics than the original media. An incident
> that harms original should not harm the backup.

Why?
>
> What about if a firmware bug destroys all data on day XXX on all
> harddisks ? Well, extra paranoid maybe and of course I have not thought
> of all possible things that *could* happen.

Are you saying that you only buy one model from one maker? In the
mid-nineties, every ISP in Chicago dumped *all* of their SCSI Seagate
Barracudas for failures. The next year, at work, I had an external box for
a Sun server that had *four* of them: in the next year, Sun replaced
various of them *five* times. Meanwhile, the IBM drives inside the server
were just fine.

       mark



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