Storage Performance


10 Oct: Virtualizing CPSI

Columbia Memorial Hospital (CMH) is a hospital on the Columbia river in NW Oregon. This project was a combination of Virtunet’s professional services to virtualize CMH’s CPSI EMR system and deploying Virtunet’s VirtuCache software to improve the storage performance of CMH’s VMware infrastructure. Needing a Hardware Refresh CMH was running…


20 Apr: VM latency remains unaffected when a storage array fails in a VMware metro storage cluster, when all VM reads and writes are cached to VMware host SSD or RAM

April 20, 2022; Connecticut, USA. WAN latency does not contribute to VM latencies when a storage array fails in a VMware metro / stretched cluster when all storage IO is cached to VMware host Flash or RAM. This post discusses how VirtuCache did this for Mashantucket casinos, by explaining the…


23 Feb: Improving Performance of Log Management Application at a Service Provider

Business Intelligence, Log Management, Security Information & Event Management (SIEM), Search and Analytic software like Splunk, Elastic Search, Cognos, HP Vertica, HP Autonomy, need to provide real-time visibility into large volumes of fast changing data. When these applications are deployed in traditional VMware VMs connected to centralized storage, such large…

servicenow 210x140

01 Mar: Reducing Build Times for DevOps

ServiceNow’s Dev/Ops team wanted to improve storage performance from their existing HP 3PAR all-flash storage appliance and iSCSI storage network. VirtuCache Deployment Virtucache was installed on 24 ESXi hosts caching to 1.6TB PM1725 PCIe flash cards. Each PM1725 SSD was performing at between 100-250MBps throughput at 1-5ms VM level latencies….