IBM Storwize V5000, Быстрое руководство по установке

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2. To add a second expansion chain to the control enclosure, use the supplied SAS
cables to connect the control enclosure to the expansion enclosure at rack
position 2, as shown in Figure 14 .
a. Connect SAS port 3 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 3 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 more 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 14 .
Note: A control enclosure can support up to 19 expansion enclosures (10 above
the control enclosure and 9 below the control enclosure).
4. If two control enclosures are installed, repeat this cabling procedure on the
second control enclosure and its expansion enclosures.
SAS cabling guidelines
When connecting SAS cables between 2U expansion enclosures, you must follow a
list of guidelines to ensure that your configuration is valid.
Orienting the connector
When inserting SAS cables, make sure the connector (Figure 15 on page 20) is
oriented correctly.
v The orientation of the connector must match the orientation of the port before
you push the connector into the port. The cable connector and socket are keyed,
and it is important that you have proper alignment of the keys when the cable is
inserted.
v The blue pull tab must be below the connector.
v
Insert the connector gently until it clicks into place. If you feel resistance, the
connector is probably oriented the wrong way. Do not force it.
v When inserted correctly, the connector can only be removed by pulling the tab.
v5000007
1
3
4
2
Figure 14. Connecting the SAS cables
Chapter 2. Installing the hardware
19