(I hate when I hit the Send button when trying to change windows....)
Eric Schrock wrote:
On Tue, Aug 01, 2006 at 01:31:22PM -0400, Torrey McMahon wrote:
The correct comparison is done when all the factors are taken into
account. Making blanket statements like, "ZFS & JBODs are always ideal"
or "ZFS on top of a raid controller is a bad idea" or "SATA drives are
good enough" without taking into account the amount of data, access
patterns, numbers of hosts, price, performance, data retention policies,
audit requirements ... is where I take issue.
Then how are blanket statements like:
"That said a 3510 with a raid controller is going to blow the
door, drive brackets, and skin off a JBOD in raw performance."
Not offensive as well?
Who said anything about offensive? I just said I take issue such
statements in the general sense of trying to compare boxes to boxes or
when making blanket statements such as "X always works better on Y".
The specific question was around a 3510JBOD having better performance
then a 3510 with a raid controller. Thats where I said the raid
controller performance was going to be better.
> ISTM the cheapest array is the best for zfs. If not, isn't
> any benchmark going to be specific to your application?
Specific to the app, the amount of data, how many other hosts
might be in play, etc. etc. etc.
That said a 3510 with a raid controller is going to blow the
door, drive brackets, and skin off a JBOD in raw performance.
But OK. I'll track down some gear...if I can. I figured that one was
just kind of obvious.
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