Toshiba HK4E SATA 1600GB Enterprise SSD Review

SNIA IOPS Test

IOPS performance will typically vary greatly depending on
the nature of the IO traffic, including the mixture of Read and Write
operations, and the mixture of Block Sizes (the size of the IO operation’s data
packet, also referred to as IO Size). This test is designed to benchmark the
IOPS performance profile for random IO operations for 56 different combinations
of Read/Write mix % and Block Sizes when in a Steady State, which are of
interest to most users.

All of the SNIA’s test specifications define a ‘required’
set of parameters that must be run for the test and then allow the operator to
elect to run additional tests with different parameters of their choice. It is
the mandatory test with the required parameters that we run. Note that all of
the mandatory SNIA tests must be conducted with fully random data

As previously mentioned, a key principle of SNIA testing is
to provide a consistent basis for comparing different solutions from different
manufacturers.

Here are the results –

SNIA IOPS Test

Toshiba HK4E SATA 1600GB Enterprise SSD Review

Here you can see a visual confirmation that Steady State
Convergence was determined at the end of Round 7 (note that steady state
convergence is calculated from the 4K line).

 

Toshiba HK4E SATA 1600GB Enterprise SSD Review

Here is a 3D and tabular presentation of the results. Users
can simply refer to the grid to obtain the R/W mix and Block Size value of
interest.  For example, Online Transaction Processing applications
typically run at a Block Size of 8K and a Read/Write Mix of 65/35, and users
can quickly understand how the device might perform under Steady State for
these access characteristics.  The results for 100% 4K Random Reads of 84,587
IOPS exceed Toshiba’s specification of 75,000 as does the result for 100% 4K
Random Writes of 34,674, which exceeds Toshiba’s specification of 30,000.


SNIA IOPS Test – Product Comparison

For interest we present a comparison of the 4K 100% Writes
and Reads results with those of the other Enterprise SSDs we have tested –

Toshiba HK4E SATA 1600GB Enterprise SSD Review

This is an excellent result for a ‘mixed workload’, SATA
SSD.  

Toshiba HK4E SATA 1600GB Enterprise SSD Review


Now let’s head to the next page, where we look at the
results of the SNIA Write Saturation Test…..