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From: bobneworleans on 25 Feb 2010 18:14
On Feb 23, 4:26 am, "mscotgr...(a)aol.com" <mscotgr...(a)aol.com> wrote:
> On Feb 23, 3:33 am, "bobneworle...(a)yahoo.com"
>
>
>
> <bobneworle...(a)yahoo.com> wrote:
> > On Feb 21, 6:10 pm, Arno <m...(a)privacy.net> wrote:
>
> > > bobneworle...(a)yahoo.com <bobneworle...(a)yahoo.com> wrote:
>
> > <snip>
>
> > > > In addition to the eSATA port, the laptop has an ExpressCard
> > > > 34/54 slot, gb Ethernet, 1394, and USB.  What's the best way to
> > > > physically connect the laptop to the array?
> > > > Do you have any specific hardware recommendations?
>
> > > It really depends on what you want.
>
> > > If you want disk fault tolerance, RAID is a valid choice,
> > > but only if your damage model does not include "I dropped
> > > the whole array". In that case, you can look for an external
> > > disk case with SATA port multiplier, but only if your
> > > controller does support it.
>
> > I'm only trying to protect my data against typical drive failure.
> > I would have thought RAID 5 would be preferred to RAID 1
> > because the overhead is so much less, but I understand your
> > point.
>
> > > Note that RAID is not backup. If you mess up your data on
> > > the RAID, it will be gone. It is quite possible that a better
> > > set-up for you is to have 2-3 independent external drives.
> > > Use one as storage extension and the other two as alternate
> > > backup drives that you copy important stuff to.
>
> > I will consider this alternative but at the moment am leaning
> > toward RAID for fault tolerance.
>
> > > Arno
>
> > Bob
>
> All backup plans should have data also offsite.  This covers fire,
> theft, major lightening strike.
>
> Offsite can include online backup, or a spare disk drive the office,
> mother in laws house etc.
>
> Personally, I like online as it is fully automatic and does not need
> to be remembered - but is probably only suitable for sub 100GB of
> data, and no more than 1GB of changed data a day.  There are concerns
> about online backup security, but the choice is yours.
>
> Michael

Michael,
Thanks for your comment. Like many of us, I have had drives fail so
I'm
sensitive to that threat but had not considered the need to protect
critical
data against fire or theft.
Bob
From: Arno on 1 Mar 2010 12:10
John Turco <jtur(a)concentric.net> wrote:
> Arno wrote:
>>
>> mscotgrove(a)aol.com <mscotgrove(a)aol.com> wrote:
>> > On Feb 23, 3:33?am, "bobneworle...(a)yahoo.com"
>> [...]
>> > All backup plans should have data also offsite. This covers fire,
>> > theft, major lightening strike.
>>
>> > Offsite can include online backup, or a spare disk drive the office,
>> > mother in laws house etc.
>>
>> > Personally, I like online as it is fully automatic and does not need
>> > to be remembered - but is probably only suitable for sub 100GB of
>> > data, and no more than 1GB of changed data a day. There are concerns
>> > about online backup security, but the choice is yours.
>>
>> I use that. In fact I rented a vserver for that purpose as this
>> turned out to be the cheapest option. Securty wise I use
>> GnuPG on any critical stuff before uploading, but otherwise
>> I trust the provider to not to snoop (would be very bad for
>> their business and criminal in addition under Geman law) and
>> have reasonable security on the server instance itself.
>>
>> And no, online is not necessarily fully automatic. Only
>> if you buy fully automatic online backup ;-)
>>
>> Arno


> Does "Geman" law cover Switzerland? It's all "Grek" to me!

No, but the vserver is in Germany, as they are much, much
cheaper there ;-)

Arno

--
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno(a)wagner.name
GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
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