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.

On 30.11.06 17:20, Johannes Wiedersich wrote:
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.

In such case, you should search for your RAID documentation, if it's real HW
RAID at all.

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