Can Brocade G630 be downgraded? Last updated Save as PDF Share Share Tweet Share Views:67Visibility:PublicVotes:0Category:fc-seriesSpecialty:brocadeLast Updated: Applies to Brocade G630 FOS v9.0.1a Answer The minimum FOS requirement for Brocade G630 with 184 ports is v9.0.0 and hence it cannot be downgraded to a lower FOS. Additional Information Brocade FOS v9.0.1b