Premium Storage account
In Figure 5.3 at the beginning of this chapter, there is a performance property at Storage account creation. This property decides whether a standard or a premium Storage account is created. For most workloads, standard accounts are more than suitable but in some cases, more I/O intensive applications need very fast storage. For this case, the premium Storage account was introduced. Premium storage is fully backed by SSD tiers and provides high performance, low latency storage.
Premium storage can currently only be used for virtual disks used in VMs (page blobs). The performance property can't be changed after Storage account creation, but it's possible to migrate VMs from the standard to premium storage tier.
Depending on the machine size, it's possible to attach up to 64 disks to a VM (Standard_GS5
). A Standard_GS5
-sized machine supports up to 80,000 uncached IOPS and 2000 MB/s disk throughput.
Microsoft examples for enterprise applications that may need premium storage...