[Coco] CF and SD life expectancy

[Jay Coleman]

  On 7/24/2011 9:31 PM, Mark Ormond wrote:
> Go raid 6 or zfs.
> (Never trust raid as a way to keep your data safe. A good backup that is tested is the only way to insure your data is safe. I sell A LOT of servers,
> And tell this to every customer. Raid is a good way to keep downtime to a minimum.)
>
> Later,
> dabone
>
Indeed.  RAID is to keep your data online in case of minor failure.  
Backups are to keep your data alive in case of major failure.   Any 
system that is not using both is asking for hurt.  (And oh, how hard it 
is to explain sometimes... executives can be so obtuse... "How much does 
it cost you to lose this data?" "$2-3 million."  "Then buy me a $50k 
backup system."  "But that's expensive!")

Jay

> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On Behalf Of Steven Hirsch
> Sent: Sunday, July 24, 2011 9:49 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] CF and SD life expectancy
>
> On Mon, 25 Jul 2011, Mark McDougall wrote:
>
>> I have CDs burned less than 10 years ago that I can't read. I have DVDs
>> burned less than 5 years ago that I can't read. I have a spindle of DVDs that
>> I bought about 2 years ago that mostly won't burn at all.
> Same here.
>
>> I'd *never* trust any archival function to optical media atm. I'm really
>> hanging on some sort of 100% reliable, permanent archival medium, because
>> even backing up to two HDD still makes me nervous! :(
> My favorite:  LTO tape.  Fast and incredibly reliable.
>
> I'm not sure I even trust RAID 5 anymore.  I recently had one drive in an
> array fail on my Linux workstation, followed quickly by a second during
> the rebuild!  As the capacity of drives gets larger, the chances of this
> happening increase.  Fortunately, I had a recent tape backup and didn't
> lose anything critical.
>
> Steve
>
>
>