[mdlug] External HDs - Any with RAID 1 Support?

[Michael ORourke]

But keep in mind, he is just storing MP3's on the external RAID1 device.
I'm sure it won't matter if he loses a file now and then.  Probably wouldn't 
even notice.

-Mike

----- Original Message ----- 
From: "Aaron Kulkis" <akulkis00 at gmail.com>
To: "MDLUG's Main discussion list" <mdlug at mdlug.org>
Sent: Monday, March 14, 2011 2:56 PM
Subject: Re: [mdlug] External HDs - Any with RAID 1 Support?


> Dan Pritts wrote:
>> RAID is useful but is not a replacement for backups.
>
> Absolutely correct.
>
> RAID is for reducing the problems caused by hardware failure
> so as to give extended system uptime.
>
> Raid will NOT bring back your mistakenly-deleted file,
> because when you delete it on the primary image, it
> gets deleted out of the mirror and/or parity bits, too.
>
> If you have to chose ONLY ONE (due to budgetary concerns),
> your number one priority should be system backups.
>
> Now note... you can USE RAID software (partition mirroring)
> as a METHOD of accomplishing a backup on a live system
> 1. attach backup disk
> 2. enable mirror & start synchronization process
> 3. If any database (or similar app which requires a
>   set of files to be mutually consistent) is running,
> shut it down
> 4. disable mirror (OS will perform a filesystem sync
> so that the mirror is in a consistent state
> before taking it offline.)
> 5. Restart databases and other apps.
>>
>> I'd recommend two separate drives and some sort of automated backup 
>> software.
>>
>
> Sounds good to me.  Tapes are getting ridiculously expensive
> these days.
>
>> On Mar 14, 2011, at 1:13 PM, Robert Adkins II wrote:
>>
>>> I have a friend looking to store a shedload of MP3s and he is concerned 
>>> with
>>> keeping his data without making tape backups.
>>>
>>> I would like to suggest a RAID 1 setup in an external drive kit. Is 
>>> there
>>> anything like this available on the market? Preferably with a USB
>>> connection?
>>
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