Category Archive for: ‘Storage Performance’

Performance Tiering and Read Caching in HPE MSA versus Virtunet VirtuCache.

December 11, 2017:

Only read performance is improved by HP MSA's internal caching and tiering features.1 In comparison, VirtuCache improves the performance of reads and writes for MSA, and it does so by caching to in-VMware host SSD or RAM. There are other differences as well.

Improving Performance of Log Management Application at a Service Provider

May 2, 2018: 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 volume of write and read operations puts pressure on existing storage infrastructure resulting in much slower than...

Reducing Write Latencies in CEPH Storage

July 22, 2016:

CEPH is a popular open source storage software. However its write latencies are high. VirtuCache caches CEPH volumes to in-host SSDs and by doing so reduces VM level latencies considerably.

CEPH Storage with Server Side Caching for Genomics

March 7, 2019:

As it relates to storage, genome sequencing workflow has two requirements.

  1. Need for cheap ($/GB) Petabyte scale storage.

  2. Need for faster processing of Genome files under analysis, many of which are a few hundred GB in size.

Reducing Build Times for DevOps

April 12, 2018: ServiceNow's Itapp Dev/Ops team wanted to improve storage performance from their existing HP 3PAR storage appliance and iSCSI storage network without requiring a hardware refresh. VirtuCache Deployment: Virtucache was installed on 3 ESXi hosts caching to 1.6TB PM1725 PCIE flash cards. In our tests the PM1725 SSD did 250MBps at 1ms VM level latencies. VirtuCache was configured to cache both reads and writes for all VMs (Write-Back caching). Writes were replicated to another...

VirtuCache on ESXi 7, accelerating Netapp Ontap Select Storage

April 15, 2020:

City of Mountain View is using VirtuCache to improve the performance of Netapp's Ontap Select storage software. They were one of our first customers to upgrade to ESXi 7.0 and so they had to upgrade VirtuCache as well.

We announced General Availability of VirtuCache for ESXi 7 within 2 weeks of VMware's ESXi 7 release date.

Reducing write latencies in a VMware stretched SAN cluster

October 12, 2018: There are only a few applications, financial trading software being one example, that require very low latencies, lower even than what’s possible with an all-flash array (AFA). VirtuCache caching to in-host RAM results in lower VM latencies than an AFA. This is because RAM latencies are an order of magnitude lower than NVME SSDs, and in the case of VirtuCache the cache media (RAM) is connected to the host CPU through a high speed memory bus, versus in the case of an AFA...

VMware SSD and RAM Cache for Dell VRTX

October 11, 2018:

Dell's PowerEdge VRTX hyper-converged appliance can either have all hard drive datastores or all SSD datastores, but you can't have SSDs act as tiering or caching media for VRTX volumes. That's where VirtuCache comes in.

Improving Storage Performance at The Ark

April 28, 2018: The Ark Encounter, in Williamstown, Kentucky, features a full-size Noah’s Ark built according to the dimensions of the Bible. Answers in Genesis (AiG) is the Christian ministry responsible for The Ark Encounter. AiG's IT department had a few ESXi hosts connected to their HP Store VSA. As a result of increased attendance at the Ark, their VMware workload increased dramatically, which in turn resulted in performance issues within VMs. AiG turned to VirtuCache to mitigate...

Improving Jenkins Performance

November 22, 2017:

By caching hot data to in-VMware host NVME SSD and RAM, VirtuCache was able to improve the performance of Jenkins based Continuous Integration(CI) process, which in turn resulted in quicker build-test cycles.

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