https://www.theregister.co.uk/2018/01/15/spectre_and_meltdown_sanitation_not_needed_storage_sw_and_hci_another_story/

Analysis Several SAN suppliers have said their systems don't need patching against the Spectre and Meltdown bugs. We asked Dell and Pure Storage about the impact of fixes and whether their SANs and Dell's hyperconverged (HCI) systems needed patching.

El Reg: Do you agree that on-premises external SANs and filers that only run their supplier's code will be safe and won't need patching, and therefore will perform as before? Could you explain the reasoning behind your position?