Microsoft considered the feedback from customers and partners for VMs sizes on Azure that are optimized for larger low latent storage computing power, better price performance for workloads that are storage intensive and require 8 GiB of memory per vCPU. L Series has been designed with this in mind.
These sizes are best suited for workloads such as NoSQL databases, like Cloudera, Casandra, MongoDB and Redis. L Series provides the same performance as the current G series VM sizes on Azure with a lower per hour price on an Azure Compute Unit (ACU). These sizes are available with both Standard and Premium storage so you can take advantage of the Premium Storage capabilities if your workloads need them. These sizes are available from small 4 core sizes to 32 core sizes with 8GiB of RAM.
These VMs are built on Intel Haswell processor technology specifically E5 Xeon v3 processors with 4, 8, 16 and 32 core VM sizes. L-series supports up to 6 TB of local SSD and offers unmatched storage I/O performance.