2. To add a second expansion enclosure chain to the control enclosure, use the
supplied SAS cables to connect the control enclosure to the expansion enclosure
at rack position 2. Refer to Figure 21 for an example.
a. Connect SAS port 2 of the left node canister in the control enclosure to SAS
port 1 of the left expansion canister in the second expansion enclosure.
b. Connect SAS port 2 of the right node canister in the control enclosure to
SAS port 1 of the right expansion canister in the second expansion
enclosure.
3. If additional expansion enclosures are installed, connect each one to the
previous expansion enclosure in a chain; use two Mini SAS HD to Mini SAS
HD cables, as shown in Figure 21.
Note: A control enclosure can support up to 20 expansion enclosures (10 above
the control enclosure and 10 below the control enclosure).
4. If additional control enclosures are installed, repeat this cabling procedure on
each control enclosure and its expansion enclosures.
Figure 21. Connecting the SAS cables
24 Storwize V7000 Gen2 and Gen2+: Quick Installation Guide