[storage-discuss] HW RAID vs COMSTAR + ZFS performance?

[eric kustarz]

On Aug 13, 2008, at 1:52 PM, Michael Greenberg wrote:

> Hi.
>> Max IOPS (Hitting the backend cache):
>> 90K using one HBA(2 ports), 130K using 2 HBAs (4
>> ports)
>> Random IOPS (not hitting the backend cache at all).
>> In this case the
>> backend is just all the 47 disks with no filesystem
>> on them. Note that
>> this also requires some changes that went into B96 of
>> SXCE.
>>    4.3K (Limited by backend seek)
>> throughput (large block I/O)
>>   760 MB/s (one HBA, 2 ports, reads)
>> 850 MB/s (one HBA, 2 ports, read/write)
>> Sumit
>
> Could you please elaborate some more on the configuration you  
> created on the thumper, and how did you actually benchmark the whole  
> thing?
> The numbers are impressive, It would be nice to know how to recreate  
> them on my Thumpers :)
>

I'd use FileBench:
http://www.solarisinternals.com/wiki/index.php/FileBench

> I'll start with replacing my B93 with a B96.

FileBench has been included by default in /usr/benchmarks/filebench  
since build 76.

eric