Re: Slightly OT: FakeRaid or Software Raid

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"Ben M." <centos@xxxxxxxxxx> writes:

> Thanks. The portability bonus is a big one. Just two other questions I 
> think.
> 
> - Raid1 entirely in dom0?

that's what I do.  I make one big md0 in the dom0, then partition that out 
with lvm.

> - Will RE type HDs be bad or good in this circumstance? I buy RE types 
> but have recently become aware of the possibility where TLER 
> (Time-Limited Error Recovery) can be an issue when run outside of a 
> Raid, e.g. alone on desktop machine.

generally speaking the re or enterprise drives are all I use
in production (all of production is software raid'd.)  otherwise,
even though you have a mirror, if one drive fails in a certain
way (happened to me twice before I switched to 'enterprise' drives)
the entire box hangs waiting on that one bad drive.  

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