Local SSDs
Because persistent storage is implemented as a network storage solution, it does not provide the high IO performance needed in some applications. For these cases, Compute Engine offers local SSDs, which are dedicated SSD drives directly attached to the physical servers hosting the running VM.
While local SSDs offer significant performance increases over persistent disks, they do not offer the same level of redundancy and are bound to the lifetime of the VM. This means that a local SSD cannot be preserved should the VM be stopped or destroyed. For this reason, it is best to use local SSDs for applications such as caching, where any data lost in the SSD is either unimportant or available somewhere else.
Each local SSD is 375 GB in ...
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