Crash consistency is a critical challenge that storage systems need to address carefully in multiple layers, including the database, file system, and block-layer RAID. Software approaches typically resort to logging to ensure transactional atomicity, which causes significant performance overhead and write amplification over underlying high-speed SSDs. Motivated by the out-of-place update feature of SSD-internalflash translation layer (FTL), previous studies propose crash-consistent SSDs to offload transactional atomicity guarantee and demonstrate their effectiveness in eliminating software-based logging overheads. However, existing hardware offloading approaches only consider single-SSD systems and would fail in an SSD array. This paper presents a crash-consistent SSD array, using FTLs and coordinating multiple SSDs to provide transactional atomicity across the array. The key is to design anarray-wide transaction commit (ARC)protocol, which resolves the multi-SSD coordination challenge and tolerates disk failures. We implement an ARC array manager and ARC SSDs to verify the design. Two case studies are conducted, where the ARC array is utilized to address the transaction logging overhead in the SQLite database and the stripe write-hole problem in the RAID subsystem. Experimental results demonstrate that the ARC SSD array can improve system performance by 32% to 93% and reduce write amplification by 39% to 49%, on average, compared with software-based logging approaches.