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Re: hardware raid vs. software raid



Dave Ewart wrote:
> Although it's worth pointing out that software RAID-*1* (one of the
> options under consideration) has almost no CPU overhead, and is often a
> good low-cost option.
> 
> Part of your decision must rest on what exactly the machine will be
> doing.  Different RAID setups are best suited for different usage
> patterns, e.g. RAID-5 is often a good general-purpose storage server
> option, RAID-10 is usually recommended for database servers, etc.

It's a 'general purpose' data server for a group of ca. 20 people,
serving linux-homes and as a samba domain controller where all the data go.

At the moment we have two servers for different kind of data, but the
idea is to have just one server with all data. The hardware has
integrated Raid-1, Raid 5 costs extra.

My concern is that we are going to have only one server. So if there was
a hardware problem, with software raid I could just temporarily move the
disks to an ordinary workstation and serve the data from there. With
hardware raid, I suppose I would have to wait for replacement parts.

Johannes



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