Kaspersky SD-WAN uses shared storage (hereinafter also referred to as storage) to ensure fault tolerance. This storage contains the following directories with data that the orchestrator needs:
backups — backup copies of VNF and PNF configurations
firmware — CPE device firmware
images — VNF images
vnf_configs — files that can be used by scripts when configuring VNFs
vnf_descriptions — VNF descriptors
We recommend using your own shared storage. The requirements for deploying the shared storage are as follows:
Support for simultaneous read and write from multiple hosts.
The recommended size depends on the size of the files being stored, but at least 40 GB of available protected space that supports further expansion.
Bandwidth of the communication channel between the storage and the orchestrator must be at least 1 Gbps; 10-Gigabit Ethernet or 8-Gigabit FC (Fiber Channel) is recommended.
The supported IOPS (input/output operations per second) value must be at least 250, at least 400 IOPS is recommended.