[TheForge] A little help please [OT]

[craig.schaefer at verizon.net]

Exactly.  RAID saves you from a disk failure, but if the controller(s) fail, you still can't get at the data on either disk.
Still need a backup on a separate disk controller somewhere.

CraigS
Gresham, OR


>From: Justin Fellenz <sunironworks at yahoo.com>
>Date: Fri Mar 17 14:17:22 CST 2006
>To: Sponsored by ABANA <theforge at mailman.qth.net>
>Subject: Re: [TheForge] A little help please [OT]

>Right you are, Gabriel. It's all a game of risk v reward. I run raid on
>my home server with a good UPS and don't bother backing up
>systematically because I figure it's not likely both drives will die at
>the same time. But a good lightning storm could prove me wrong....
>
>J
>
>--- Gabriel Cain <gabriel at dreamingcrow.com> wrote:
>
>> Justin Fellenz wrote:
>> > Lynn,
>> > 
>> > You might also consider runnig two drives in parallel, using a RAID
>> > (redundant array of inexpensive disks) card. They're pretty cheap
>> now
>> > (like $60) as are disks, and then you dont have to back anything up
>> or
>> > lose what you saved since the last backup. It's easier than it
>> sounds
>> > and it's a slick solution. Happy to provide more info if you like>.
>> 
>> RAID is no panacea.  You still have to perform backups.  It's merely
>> the
>> case that you're /less/ likely to have a catastrophic data loss
>> event.  They
>> don't go away, only lessen.
>> 
>> I do highly recommend a RAID-1 setup, tho. ( RAID level 1 is a
>> mirrored disk
>> set; both disks get writes of all the data.  Other levels include
>> level 0 -
>> striping, which increases performance, but also increases risk.  And
>> there's
>> RAID 5; more than 2 disks, more data integrity, greater disk space,
>> but
>> slightly less performance (like raid-0)).
>> 
>> Gabriel,
>> who is a systems administrator in real life. :)
>> 
>> 
>> -- 
>> Gabriel Cain                                    Dreaming Crow Forge
>> President and Chief Artifacer                   P.O.Box 15605
>> gabriel at dreamingcrow.com                        Seattle, WA 98115
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