Dell DAE2-ATA Hardware Reference - Page 32

Installing a DAE2 4. Attach the copper cable from the external device (storage processor or another DAE2) to the PRI connector as shown in Figure 2-4. If you are continuing the loop to another DAE2, attach a cable from the EXP connector to the PRI connector in the next DAE2. PRI Connector To other FC device EMC2772 Figure 2-4 Connecting a Disk Enclosure to Another FC Device 5. If you are installing multiple disk enclosures, cable them as shown in Figure 2-5 or Figure 2-7. The configuration example in Figure 2-5 shows a CLARiiON® CX500 disk processor enclosure (DPE2) below seven DAE2 disk-array enclosures. The eight devices support two completely redundant loops. Note that the external device connects to the Primary disk enclosure connectors, and subsequent enclosures connect in an Expansion-to-Primary chain. EA 0, loop 0 must be a Fibre Channel DPE2 or DAE2. ATA enclosures do not support the boot and SPS requirements of the first disk array in a storage system. 2-8 2-Gigabit Disk-Array Enclosure (DAE2) Hardware Reference