Post by roboscorpion on Dec 22, 2009 0:06:24 GMT 7
Hi all.
My newly installed N8800SAS is giving me disappointingly slow performance stats, as reported by ATTO Disk Benchmark.
One of the reasons for buying this unit was the benchmarks shown at www.storagereviews.co.uk/?p=559 (iSCSI).
Their figures:
Average Write Throughput : 86.2 MB/sec
Peak Write Performance : 100.3 MB/sec
Average Read Throughput : 98.2 MB/sec
Peak Read Performance : 116.9 MB/sec
My own figures:
Average Write Throughput : 10.7 MB/sec
Peak Write Performance : 10.9 MB/sec
Average Read Throughput : 83.5 MB/sec
Peak Read Performance : 101.8 MB/sec
As you can see, the Write performance is only a tenth of that seen by the reviewer, while Read performance is well down, too.
The set-up I have:
Dell PowerEdge 2950 Server (33Gb RAM dual quad-core Xeon CPU), connected to the N8800SAS thru a D-Link DGS-1216T Gigabit switch (Jumbo Frames is enabled on all devices).
I'd appreciate any thoughts that my fellow users may have...
My newly installed N8800SAS is giving me disappointingly slow performance stats, as reported by ATTO Disk Benchmark.
One of the reasons for buying this unit was the benchmarks shown at www.storagereviews.co.uk/?p=559 (iSCSI).
Their figures:
Average Write Throughput : 86.2 MB/sec
Peak Write Performance : 100.3 MB/sec
Average Read Throughput : 98.2 MB/sec
Peak Read Performance : 116.9 MB/sec
My own figures:
Average Write Throughput : 10.7 MB/sec
Peak Write Performance : 10.9 MB/sec
Average Read Throughput : 83.5 MB/sec
Peak Read Performance : 101.8 MB/sec
As you can see, the Write performance is only a tenth of that seen by the reviewer, while Read performance is well down, too.
The set-up I have:
Dell PowerEdge 2950 Server (33Gb RAM dual quad-core Xeon CPU), connected to the N8800SAS thru a D-Link DGS-1216T Gigabit switch (Jumbo Frames is enabled on all devices).
I'd appreciate any thoughts that my fellow users may have...