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VMWare is a powerful software tool that can empower your IT staff to build a much more flexible and resilient environment for business applications. There are several benefits to utilizing VMWare with your SAN, NAS or iSCSI storage infrastructure.
Availability - Shared data storage systems on redundant LAN or SAN Fibre Channel fabrics provide the ability for users to use tools such as promo code and Site Recovery Manager to move, recover and monitor VMs with limited to zero system downtime
Redundancy - Extend multi-pathing to all virtual machines, as well as extend failure resistance
Performance - Makes load balancing and high availability more affordable by eliminating dedicated standby hardware
Disaster Recovery - Disaster Recovery capabilities are enhanced when bare metal restore limitations are removed due to the VMWare hypervisor While there are multiple benefits of shared storage for VMWare, you need to determine when your storage is configured correctly. Properly planning the necessary storage capacity for an optimized VMWare environment requires proper planning and continuous performance tuning. The ultimate goal of performance optimization is finding and eliminating all possible roadblocks that reduce the full utilization of the Core Four resources (CPU, Network, Memory, and Storage). Here, we will discuss eliminating roadblocks for storage.
Storage Selection
When determining the best place in your storage infrastructure to deploy your VMWare environment, selecting the proper storage array or configuration is one of the most important factors. There is always the obvious trade-off between cost and performance and storage should divided into tiers depending on a number of factors. In the end, every application should be supported on the tier best suited for the business with a balance of cost in mind.
Tier 1 - Offers maximum performance and availability. This tier may utilize built-in snapshots to facilitate point-in-time restorations and supports replication, full storage processor redundancy, and Fibre Channel, SAS or SSD drive technology. Smaller, faster disk will improve performance here. Find Out More higher cost per spindle tier.
Tier 2 - Offers mid-range performance, less availability than high-tier storage, limited storage processor redundancy, and perhaps slower, larger Fibre Channel drives.
Tier 3 - Offers limited performance and little storage redundancy. This tier should be built on high capacity, lower performance SATA drives.
