This may go better for formatting SCSI drives on the A2090. In case you have drives on both inner and external chains, it's essential to desolder the termination on the A2090 controller card. https://xn--l3ca4b8epb5b.com/category/%E0%B8%84%E0%B8%A5%E0%B8%B4%E0%B8%9B%E0%B8%AB%E0%B8%A5%E0%B8%B8%E0%B8%94/