Thanks for your question, I think the fiber channel SFP+ will work with this IBM SAN512B-7. Click the below URL to learn more details.
https://www.optcore.net/product-category/optical-transceiver/sfp-plus-transceiver/8g-sfp-plus/
https://www.optcore.net/product-category/optical-transceiver/sfp-plus-transceiver/16g-sfp-plus/
https://www.optcore.net/product-category/optical-transceiver/40g-100g-transceivers/32g-sfp28-transceiver/