We still have some low-end storage in use for small offices. We have Dell/EMC AX-150 arrays in an iSCSI configuration in some remote sites that only need file services and/or low-end SQL servers. Our configurations vary from 1TB to 6TB of storage with two dedicated gigabit switches to act as the storage network.
They are older arrays, but they are still filling a niche very well.
I hope this helps,