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4. Secure the enclosure with a screw in each of the rack mounting screw holes.
5. Reinstall the left and right end caps.
Connecting SAS cables
This task applies if you are installing one or more SAS-attached 2U expansion enclosures to your system.
About this task
For information about 5U expansion enclosures, see IBM Documentation (https://ibm.biz/BdqxdY) for your product. The following table
summarizes the supported SAS chains and enclosures for each system. Follow the guidelines to ensure that your configuration is valid.
System
Onboard SAS Ports
FlashSystem 5015
the FlashSystem 5035
Port 1 and Port 2
Procedure
1. Using the supplied SAS cables, complete the following steps to connect the control enclosure to the expansion enclosure.
a) Connect SAS port 1 of the left node canister in the control enclosure to SAS port 1 of the left expansion canister in the first expansion
enclosure.
b) Connect SAS port 1 of the right node canister in the control enclosure to SAS port 1 of the right expansion canister in the first
expansion enclosure.
2. On the FlashSystem 5035 systems, complete the following steps to add a second expansion chain.
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 more expansion enclosures are installed, connect each one to the previous expansion enclosure in a chain.
Results
The following figures show SAS connections between 2U expansion enclosures and each system. SAS chain one (1) is below the control
enclosure. If the system supports a second SAS chain, SAS chain two (2) is above the controle enclosure.
Note: The rails are not designed to hold an enclosure that is partially inserted. Always
fully insert the enclosure in the rack.
a. Ensure that the serial number of the end cap matches the serial number on the rear of the
enclosure.
b. Fit the slot on the top of the end cap over the tab on the chassis flange.
c. Rotate the end cap down until it snaps into place.
d. Ensure that the inside surface of the end cap is flush with the chassis.
Note: Indicator windows on the left end cap align with the status LEDs (light-emitting
diodes) on the edge of the enclosure.
SAS Chains
Port 1 only
1
2
Expansion Enclosures per Chain
•
2U enclosure (10)
•
5U enclosure (4)
•
2U enclosure (10)
•
5U enclosure (4)
I/O Groups
Maximum Enclosures
1
•
2U enclosure (10)
•
5U enclosure (4)
2
•
2U enclosure (40)
•
5U enclosure (16)
6
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