On 2011-06-19 21.50, Eric Furman wrote:
> On Sun, 19 Jun 2011 18:04 +0000, "Kevin Chadwick"
>> On Fri, 17 Jun 2011 10:41:40 -0700
>> Tyler Morgan wrote:
>>> I decided, for my fairly basic router needs, to not use RAID in OpenBSD
>>> and instead rely on CARP and backups. I am more worried about the power
>>> supply and the motherboard going wonky before the SSD.
>> CARP is obviously better but being more worried about power
>> supplies (granted they can be very cheap and nasty) and MBs more than
>> SSD/HDD is simply nonsense.
>
> In my personal experience I've seen many more power supply
> failures than HDD failures, but I guess it's just me...
I've got the opposite experience. Sure, as Kevin pointed out, PSU:s can
be very cheap and I've had my fair share of those pop, but I build *all*
of my systems with some form of RAID with redundancy because it gives me
demonstrably better uptimes.
I would say that on average, one to two in 20 drives goes belly-up within
the first year of service. The rest usually never die, or rather last
until they're replaced for other reasons, but I don't want the one bad
apple to spoil my day in any way if I can avoid it by design.
What RAID (and redundant PSU:s) buys me is the luxury of choosing myself
when my servers are gonna have service downtime, rather than some random
component failure choosing for me.
Sure, CARP gives one kind of redundancy in some specific use cases, but
I absolutely prefer my redundancies redundant, thankyouverymuch. :-)
Regards,
/Benny
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