Cabling Multiple Enclosures - IBM System Storage DCS Series Installation And Migration Manual

1. Connect one end of a SAS cable to the drive expansion port 1 on controller A
2. Connect one end of a SAS cable to the drive expansion port 1 on controller A
3. Connect one end of a SAS cable to the drive expansion port 1 on controller B
4. Connect one end of a SAS cable to the drive expansion port 2 on controller B
5. Wait until the status of the storage system is Optimal.
6. Add drives to the storage enclosure one at a time. Add drive only after the

Cabling multiple enclosures

The following illustration shows the supported cabling configuration to connect a
DCS3860 storage subsystem with Gen2 controllers to multiple storage enclosures
and between the storage enclosures with SAS drive channels.
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IBM System Storage DCS Series with Gen2 controllers Hard Disk Drive and Storage Enclosure Installation and Migration
Guide
and the other end to the In ( ) SAS connector 1 on the ESM located in slot A of
the EXP3800/DCS3700 expansion enclosure.
and the other end to the In ( ) SAS connector 1 on the ESM located in slot A of
the EXP3800/DCS3700 expansion enclosure.
and the other end to the In ( ) SAS connector 2 on the ESM located in slot A.
and the other end to the In ( ) SAS connector 2 on the ESM located in slot B.
IBM DS Storage Manager recognizes the drive you added earlier. Wait at least
30 seconds for the IBM DS Storage Manager to recognize a newly added drive.