Exascend PD5 Gen5 7.68TB Enterprise SSD Review – 15GB/s Throughput with 3000K+ IOPS and Exceptional Random Writes

RANDOM PERFORMANCE BENCHMARKS

4K RANDOM WRITE/READ

We precondition our enterprise SSDs using 100% random 4K writes at QD256  for two drive fills. Performance data is recorded every second.  We track this data to monitor the enterprise SSDs transition to steady-state and to verify that steady-state conditions are achieved before initiating queue depth testing. Steady-state is established after a full drive fill and the average steady-state 4K random write performance is approximately 800K IOPS.

Listed specification for the Exascend PD5 Gen5 7.68TB SSD is 333K IOPS for sustained random write 4K IOPS during steady-state operation and this SSD exceeded that spec at 800K IOPS.  Perhaps its time to update that spec.

Listed specification for the Exascend PD5 Gen5 SSD is 3112K IOPS for sustained random read 4K IOPS during steady-state operation and our testing pretty much met that at 3105K IOPS.

4K 70/30

The Exascend PD5 demonstrates above average 4K 70/30 mixed read/write results with an average of 1090K IOPS.

4K 50/50

The PD5 pulled off an average performance result of 840K IOPS through QD128-QD4096.