Serversan analysis (c): storevirtual storage hardware and software fully decoupled

Storevirtual complete decoupling of storage hardware and software

Lefthand introduced VSA (Virtual Storage Appliance) software in 2007 and was renamed Storevirtual Companion HP x86 Universal Server (DL, ProLiant, BladeSystem, etc.) in the second year by HP acquisition Sold together, followed by the introduction of Storeonce VSA. Storevirtual Natural support hardware and software decoupling, which is in line with the characteristics of SDS/SBS storage, due to simple deployment, architecture decoupling, software free, no vendor lockin problems, its shipments since the acquisition has exceeded millions of sets.

Compared to VVNX and NUTANIX,VSA, the storage hardware and software decoupling is not dependent on VM deployment, all the deployment and performance is not due to which hardware to be different, so VSA retains the traditional storage deployment habits, performance advantages, but also absorbed the sds/ SBS is based on the concept of decoupling of hardware and software.

Storevirtual Products

HP offers a free open storevirtual VSA 1TB capacity licensed version that can be deployed on any x86 server that meets the requirements (Dell, HP or Lenovo), plus HP offers a free trial version of the Storeonce VSA 10TB, supporting mainstream applications and virtualized platforms.

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Storevirtual Architecture

Storevirtual is based on lefthand iSCSI SAN software: san/iq cluster OS Software; The cluster-based architecture is designed to scale up to 2-32 server nodes, and the network RAID function deploys data mirroring or sub-strips across multiple server nodes, with performance and capacity equalization between nodes.

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The data synchronization function San/iq cluster can achieve cross-site data protection, the technology is similar to the volume image, the data in the local and offsite to maintain real-time synchronization of any site failure, does not affect the data volume normal access, only need to do the necessary data switch.

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Storevirtual characteristics

Storevirtual supports rich value-added features such as snapshots, remote replication, multi-site disaster recovery and other storage capabilities. But it is worth mentioning that the HA disaster recovery function with the application. Based on the San/iq multi-site San feature, you can enhance data cross-site reliability together with Exchange or VMware ha clusters.

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Simple summary:

Storevirtual also has some gaps in the support for storage of dual live (such as HDs GAD, Huawei Hypermetro, etc.) because VSA does not see quorum, automatic switching on the storage side. But Storevirtual was one of the first products to adopt Sds/sbs thought. From the sales situation is very successful, because of the cost advantage, rich storage features, so in the low-end storage market has a strong competitiveness. HP pushes 3PAR in mid-and high-end markets, including high-end, integrated unified storage and flash. Enhanced flash and high-end competitiveness, the first to introduce 1.92/3.84TB disk in the Flash strategy, combined with the re-delete compression to provide a competitive solution. This can be complementary in the HP different product grades.

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This article from the "ICT Architects Technical Exchange" blog, declined to reprint!

Serversan analysis (c): storevirtual storage hardware and software fully decoupled