Re: Data Recovery from Nas Acer NS04

From	JohnF <john@please.see.sig.for.email.com>
Newsgroups	comp.os.linux.misc
Subject	Re: Data Recovery from Nas Acer NS04
Date	2011-04-14 13:03 +0000
Organization	PANIX Public Access Internet and UNIX, NYC
Message-ID	<io6ran$moi$1@reader1.panix.com> (permalink)
References	<8bb3e138-de1f-4283-a215-805b75a2aecb@r6g2000vbz.googlegroups.com> <5crcq61ktl6e1ju7s9facuqsj8qlp4lu2g@4ax.com>

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Grant <omg@grrr.id.au> wrote:
> davidecool <davidecool@gmail.com> wrote:
> 
>>this post is my last chance to recover data from a raid.
> 
> Usual answer is to restore from backup,
> Not helpful when the RAID is your backup though,

Yeah, most people seem to confuse raid with a backup
solution when it's really an availability solution.
Anything that's powered up and spinning isn't a backup.
I have three one-disk nas's (synology ds109j's) on
my soho lan, each one backing up all four of my pc's
(and a few old digital vaxstations and an alphaserver).
Costs less than one two-disk nas raid.
Usually only one nas is powered up at a time, in rotation,
except for occasional syncs when something looks weird.
If one disk and/or chasis dies, at very most a day's work
dies with it.
  Raid just scares me as backup. Especially if the
controller dies, then depending on raid level, it can
be hard to make sense of the disks without an identical
duplicate controller. My disks are all just ext3, easily
mountable on any linux box. In fact, I have a Thermaltake
BlacX duet just for that purpose in case of trouble.
  Raid, I think, is just the wrong way to go for most
typical soho-type backup requirements. You might want
a raid on your lan for availability purposes, so everybody
keeps working in case a single spindle dies. But you want
a whole different (most likely non-raid) backup solution,
whether or not you have an online raid for availablity.
-- 
John Forkosh  ( mailto:  j@f.com  where j=john and f=forkosh )

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Data Recovery from Nas Acer NS04 davidecool <davidecool@gmail.com> - 2011-04-12 02:55 -0700
  Re: Data Recovery from Nas Acer NS04 Grant <omg@grrr.id.au> - 2011-04-14 13:49 +1000
    Re: Data Recovery from Nas Acer NS04 JohnF <john@please.see.sig.for.email.com> - 2011-04-14 13:03 +0000
      Re: Data Recovery from Nas Acer NS04 The Natural Philosopher <tnp@invalid.invalid> - 2011-04-14 15:36 +0100
        Re: Data Recovery from Nas Acer NS04 "Peter J. Holzer" <hjp-usenet2@hjp.at> - 2011-04-14 22:54 +0200

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