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Re: hardware advice


On Mittwoch, 7. August 2013, Nigel Barker wrote:
> > *do not* do this, if any of your two disks fails, the data is gone.
> > Better use
> isn't this the same as a single disk, though?

no, raid-0 is worse: if any of your two disks fails, the data is gone. raid0 
is just faster. 

with raid1, any of the two disks can fail and the data will still be there.
> > raid10 instead, though for that you will need 3 disks at least. Also
> > putting / and /opt on an SSD will speed up things massivly. (So just
> > keep /home on real harddisks.) A 120gb SSD is about 100€ and (if
> > possible) IME is the best investment for an old machine.
> I am going to buy a new machine. A core-5 or 7 with tons of RAM,
> rather than a xeon with less. Do you think / and /opt on SSD and the
> rest on  7200 sata is good enough for ~30 concurrent users (perhaps
> rare peak of 50)? Or do I still need raid?

should be fine. but I'd go for raid1 for /home and / and /opt on ssd.


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