Oracle ZFS Storage Appliance Customer Service Manual, Release OS8.8.x Servicing the Oracle ZFS Storage ZS4-4 Controller Oracle ZFS Storage ZS4-4 Controller Hardware Overview Oracle ZFS Storage ZS4-4 Controller Hardware Overview To understand the Oracle ZFS Storage ZS4-4 controller, use the following topics: Oracle ZFS Storage ZS4-4 Base Configuration Oracle ZFS Storage ZS4-4 Front and Rear Panel Components Oracle ZFS Storage ZS4-4 PCIe I/O Cards Oracle ZFS Storage ZS4-4 Internal Components Oracle ZFS Storage ZS4-4 Attached Storage