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## Operational Experience of VMware vSAN Cluster Storage Technology at IAA RAS

Transactions of IAA RAS, issue 59, 26–29 (2021)

Keywords: virtual machines, fault tolerance, scaling, data processing

### Abstract

Virtual machines (hosted by VMware products) have been used at IAA RAS since 2009. Virtual machines were used both for processing of VLBI observation data and as buffering servers in the e-VLBI mode. With the development of the IAA RAS information network, many service services, such as a mail server or a web server, were moved from physical servers to virtual machines. So, there was a need arose to ensure uninterrupted operation of these services and to minimize downtime in the event of equipment failure or preventive maintenance. Since 2014 IAA RAS has used two virtual machine servers at two independent sites. However, network file storage remained the single point of failure. In 2020 a decision was made to implement vSAN distributed cluster storage technology to address this issue. The article describes the technology for migrating virtual machine infrastructure to new storage, the advantages and disadvantages of this technology, conclusions and practical experience after one year of using vSAN. Keywords: virtual machines, fault tolerance, scaling, data processing.

### Citation

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V. A. Yakovlev, I. A. Bezrukov, A. I. Salnikov. Operational Experience of VMware vSAN Cluster Storage Technology at IAA RAS // Transactions of IAA RAS. — 2021. — Issue 59. — P. 26–29. @article{yakovlev2021, abstract = {Virtual machines (hosted by VMware products) have been used at IAA RAS since 2009. Virtual machines were used both for processing of VLBI observation data and as buffering servers in the e-VLBI mode. With the development of the IAA RAS information network, many service services, such as a mail server or a web server, were moved from physical servers to virtual machines. So, there was a need arose to ensure uninterrupted operation of these services and to minimize downtime in the event of equipment failure or preventive maintenance. Since 2014 IAA RAS has used two virtual machine servers at two independent sites. However, network file storage remained the single point of failure. In 2020 a decision was made to implement vSAN distributed cluster storage technology to address this issue. The article describes the technology for migrating virtual machine infrastructure to new storage, the advantages and disadvantages of this technology, conclusions and practical experience after one year of using vSAN. Keywords: virtual machines, fault tolerance, scaling, data processing.}, author = {V.~A. Yakovlev and I.~A. Bezrukov and A.~I. Salnikov}, doi = {10.32876/ApplAstron.59.26-29}, issue = {59}, journal = {Transactions of IAA RAS}, keyword = {virtual machines, fault tolerance, scaling, data processing}, pages = {26--29}, title = {Operational Experience of VMware vSAN Cluster Storage Technology at IAA RAS}, url = {http://iaaras.ru/en/library/paper/2103/}, year = {2021} } TY - JOUR TI - Operational Experience of VMware vSAN Cluster Storage Technology at IAA RAS AU - Yakovlev, V. A. AU - Bezrukov, I. A. AU - Salnikov, A. I. PY - 2021 T2 - Transactions of IAA RAS IS - 59 SP - 26 AB - Virtual machines (hosted by VMware products) have been used at IAA RAS since 2009. Virtual machines were used both for processing of VLBI observation data and as buffering servers in the e-VLBI mode. With the development of the IAA RAS information network, many service services, such as a mail server or a web server, were moved from physical servers to virtual machines. So, there was a need arose to ensure uninterrupted operation of these services and to minimize downtime in the event of equipment failure or preventive maintenance. Since 2014 IAA RAS has used two virtual machine servers at two independent sites. However, network file storage remained the single point of failure. In 2020 a decision was made to implement vSAN distributed cluster storage technology to address this issue. The article describes the technology for migrating virtual machine infrastructure to new storage, the advantages and disadvantages of this technology, conclusions and practical experience after one year of using vSAN. Keywords: virtual machines, fault tolerance, scaling, data processing. DO - 10.32876/ApplAstron.59.26-29 UR - http://iaaras.ru/en/library/paper/2103/ ER -