This is a follow on posting about my Condusiv V-Locity VM testing carried out back in July. 
I have carried out testing on the Synology DS1513+ NAS using both iSCSI and NFS.
Lab Setup
Host Hardware
ESXi HOST: Shuttle XPC SH67H3, 32GB RAM; 1x i7 3770 @ 3.4ghz with ESXi 5.1u1 (5.1.0 build 1021289)
STORAGE PLATFORM
Synology: DS1513+ running DSM 4.2
NETWORKING
NetGear TS724T 24 x 1 GB Ethernet switch
Cisco SRW2016 16x 1GB Ethernet switch (dedicated storage switch for the Synology unit).
IO Test Machines
OS TYPE: Windows 7 x64 (fully patched) on ESXi 5.1u1 using a 40gb thick eager zero provisioned disk
CPU Count \ Ram: 1 vCPU, 4GB ram
This was a template VM with full updates applied to the image and then deployed out. One guest was running V-locity 4 and Iometer via a PowerShell script whilst the second guest was just running Iometer via the PowerShell script, no other VM’s were active on the host or storage during testing.
The power plan was set to High performance and the screen saver turned off.
Virtual machine names:
Current VMware tools were installed onto the template and running.
IO Testing Software
All testing was carried out using IO Meter software and test scripts provided by Condusiv. Testing was carried out to allow the V-locity Benefits Analyser to run to completion successfully (3 phases of testing – Analysis, Improvement and Post takes 3 days).
The IOMeter test script can be downloaded from here and the IOMeter.ps1 PowerShell file can be downloaded from here. No deviation to the testing script occurred.
Performance Results – Synology DS1513+ iSCSI
Constant testing was carried out and 192 sets of results were received. The following results were taken after the three phases used by V-locity Benefit Analysis tool and show what happens when you have a VM using V-locity in full flow compared to a VM without the V-locity software installed.
Runs 1 and 126 – V-locity running during and after the analysys.
Runs 1 and 126 – No V-locity installed.
We can see from the above results that having V-locity running on one of the VM’s has greatly improved the average iops when compared to a VM with no V-locity running.
The results of the Benefit Analysis show similar improvements.
Performance Results – Synology DS1513+ NFS
Runs 1 and 126 – V-locity VM running during and after the analysys.
Runs 1 and 126 – No V-locity VM installed.
We can see from the above results that having V-locity VM running on one of the VM’s has greatly improved the average iops when compared to a VM with no V-locity VM running.
The results of the Benefit Analysis show similar improvements.
I will be carrying out further testing in my home lab environment over the next few weeks to offer up some more performance testing results for various different storage solutions.
