This question is perhaps best dealt with by a Cisco or partner sales representative who understands your requirements and can speak about per-port costs. This forum has a more Cisco-centric technical focus.
Nevertheless, here's a link with basic information about the 9216 that might help you compare features/functionality:
Which Brocade switch(es) specifically are you looking at? The 9216 is multiprotocol (FCIP, iSCSI) and would compare with the FAP 7420 in that category (although you'll want to check if iSCSI is available yet on the 7420). For pure fiber channel the Silkworm 3200, 3250, 3800, 3850, and 3900 are roughly in the same class as the MDS 9216 in terms of number of ports and basic capabilities.
If you have specific technical questions this forum may be helpful, otherwise try calling
1-800-778-3632, ext. 1280, or engaging your local neighborhood Cisco/partner sales rep.
Let me start by telling you that there is already a very nice document in the Cisco Community Forums which describes the procedure to upgrade the APIC CIMC. In case you came across this document before looking into the mentioned one, here is...
2020年7月14日 (初版)主な問題F3 ラインカードを利用した場合、Shared Policers の設定により通信レートを期待値に制御できません。CIR 値を 1048600 に設定し、以下一例となります。128 byte のペイロードのパケットが通過している場合の、egress port 側の sh int の出力：N7K(config)# sh int e1/1 | i i rate
Rate mode is dedicated
30 seconds input ...