Back-End Connections for an SCv2000/SCv2020 without
Expansion Enclosures
When you deploy an SCv2000/SCv2020 storage system without expansion enclosures, you must
interconnect the storage controllers using SAS cables.
NOTE: The top storage controller is storage controller 1 and the bottom storage controller is
storage controller 2.
Figure 61. SCv2000/SCv2020 Without Expansion Enclosures
1. SCv2000/SCv2020 storage system 2. Storage controller 1
3. Storage controller 2
The following table describes the back-end SAS connections for an SCv2000/SCv2020 without
expansion enclosures.
Table 3.
Storage System Without Expansion Enclosures
Path Connections
Chain 1: A Side (Orange) Storage controller 1: port A to storage controller 2: port B.
Chain 1: B Side (Blue) Storage controller 2: port A to the storage controller 1: port B.
Back-End Connections for an SCv2000/SCv2020 with
Expansion Enclosures
The SCv2000/SCv2020 storage system supports a total of 168 disks per Storage Center system.
• The SCv2000 supports up to thirteen SC100 expansion enclosures, up to six SC120 expansion
enclosures, or any combination of SC100/SC120 expansion enclosures as long as the total disk count
of the system does not exceed 168.
• The SCv2020 supports up to twelve SC100 expansion enclosures, up to six SC120 expansion
enclosures, or any combination of SC100/SC120 expansion enclosures as long as the total disk count
of the system does not exceed 168 disks.
The following sections show common cabling between the SCv2000/SCv2020 and SC100/SC120
expansion enclosures. Locate the scenario that most closely matches the Storage Center that you are
configuring and follow the instructions, modifying them as necessary.
Back-End Cabling and Connecting Power
71
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