Hi! On 2009/12/15, at 17:54, David Avendasora wrote:
You don't need them all to fail. Just two. I've seen it happen personally.Yes, different manufacturers and mechanisms is a good idea.
The problem is most RAID enclosures recommend using similar disks to avoid firmware bugs and increase performance. An alternative to use different drives is using similar drives, but managing their working hours. An example could be buying a larger set of drives than the ones that will be used simultaneously, and swapping some of them in an un- even way (so that some drives clearly work more than others, causing them to fail first).
That being said, despite the manufactures recommendation, I had never seen a problem caused by using different brand and model drives in the same enclosure, although my experience with RAID enclosures is very limited.
Yours Miguel Arroz
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