The advent of hyperconvergence and software-defined storage technologies makes virtual data storage an attractive alternative for companies looking to cut down on IT costs. In reality, since these solutions don’t need the redundant hardware that is typically required in traditional storage architectures for disaster recovery, they can reduce upfront costs and ongoing operating expenses by a significant amount.
Virtual data storage permits IT departments to pool physical storage devices, like SANs which appear to be a single device or virtual storage array. There are a variety of ways to utilize the technology, including host-based virtualization and network-based storage (which connects storage devices from an FC or iSCSI SAN in a single pool addressed by a central management console). Host-based virtualization is typically used in HCI systems and cloud storage.
To function virtual storage, it must be compatible with underlying hardware infrastructure such as networking components and servers, along with the common management tools and hypervisors. It should also enable data encryption as well as granular authentication, access controls as well as robust backup and disaster recovery capabilities.
Furthermore, virtual storage should be able to address the issues of performance and latency. This includes ensuring that critical applications are able to run without compromising performance or causing latency to retrieval of data. This means assessing storage controller capabilities, network bandwidth and disk I/O capacity as well as implementing caching mechanisms. It also involves installing advanced storage functions such as tiering and replication at the virtualization level.
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