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Re: Linux Takes Over Mission-critical Systems

__/ [ BearItAll ] on Wednesday 29 March 2006 09:37 \__

> Roy Schestowitz wrote:
> 
>> Linuxworld: Linux continues Unix bloodbath
>> 
>> ,----[ Quote ]
>> | Even the most mission-critical, Unix-based central business systems are
>> | being replaced by Linux running on commodity hardware, according to
>> | delegates at Linuxworld 2006 conference and expo in Sydney yesterday.
>> `----
>> 
>> http://www.linuxworld.com.au/index.php/id;1528118963;fp;2;fpid;1
> 
> That is basically what I recommend to companies. Always mirror/cluster, but
> don't worry about using cheaper machines to save costs. I always have to
> remind them that a mirror isn't a backup (you wouldn't believe the number
> of companies I visit where they assume a mirror means a backup isn't
> necessary).
> 
> All my servers here are just cheap off the shelf machines, except one, a
> Dell Poweredge which only has the job of a mirror and backup control,
> because I can't trust it to be a live server. Typical isn't it, the most
> expensive machine I have and it will never actually do the job of a server.

Mirror != Backup? What's deficient in the following, for example?

,----[ Code ]
| # Locally 
| 
| nice scp -r ~/.[0-z]* ~/* roy@home:/home/roy/Main/BU/Baine-`date +%Y-%m-%d`
| 
| # On remote side
| 
| mkdir /media/SEA_DISK/Home/`date +%Y-%m-%d`
| 
| tar -cf - /home/roy/Main/BU|split -b 1000m - /media/SEA_DISK/Home/`date
| +%Y-%m-%d`/Baine-`date +%Y-%m-%d`.tar.
| 
`----

I am not confuting your opinion. Rather, I am asking for your kind advice...
I have mirrors on 3 hard-drives and the O/S is restorable from the CD/s.

Roy

-- 
Roy S. Schestowitz
http://Schestowitz.com  |    SuSE Linux     ¦     PGP-Key: 0x74572E8E
 10:05am  up 20 days 23:50,  10 users,  load average: 0.84, 0.87, 0.73
      http://iuron.com - Open Source knowledge engine project

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