Luke Lonergan wrote:
Torrey,
On 7/28/06 10:11 AM, "Torrey McMahon" <[EMAIL PROTECTED]> wrote:
That said a 3510 with a raid controller is going to blow the door, drive
brackets, and skin off a JBOD in raw performance.
I'm pretty certain this is not the case.
If you need sequential bandwidth, each 3510 only brings 200MB/s x two Fibre
channel attach = 400MB/s total.
You might want to check the specs of the the 3510. In some configs you
only get 2 ports. However, in others you can get 8. In any case though
throughput is important the amount of iops you can load the controller
or drives is often more important. Yes, in a highly sequential workload
you're going to blow right through the cache and hit the drives - If the
array is smart which more are these days - but those highly sequential
workloads are not found as often as others.
Cheap internal disks in the X4500 reach
2,000MB/s and 2500 random seeks/second using ZFS.
You're comparing apples to a crate of apples. A more useful comparison
would be something along the lines a single R0 LUN on a 3510 with
controller to a single 3510-JBOD with ZFS across all the drives.
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