Hello David and Michael,
Well I might back up the more important stuff offsite. But in theory
it's all replaceable. Just would be a pain.
And what is the cost of the time to replace it versus the price of a hard
disk? Time ~ money.
This is true, but there is one counterpoint. If you do raidz2, you are
definitely paying for extra disk(s). If you stay with raidz1, the cost of
the time to recover the data would be incurred if and only if he has a
failure in raidz1 followed by a second failure during the re-build process.
So, the statistically correct thing to do is to multiply the cost of
recovery by the probability and see if that exceeds the cost of the new
drives.
To be really accurate, the cost of raidz2 option should also include the
cost of moving the data from the existing raidz1 to the new raidz2 and then
re-formatting the raidz1 into raidz2.
However, all this calculating is probably not worthwhile. My feeling is:
it's just a home video server and Michael still has the original media (I
think). Raidz1 is good enough.
Monish
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