Expansion
Unit Model
Description
Required Accessories
Maximum
Expansion Units
Supported
EJ1600 v2
• Uses a SAS 12 Gbps interface
• Supports SAS HDD/SSD
• SAS-12G2E storage
expansion card
• Mini-SAS SFF-8644
cable
• RAIL-E03 rail kit
7
Connecting SAS Expansion Units
The ES2486dc supports a maximum of seven SAS expansion units. To connect SAS expansion units, a
storage expansion card must be installed in the NAS.
1.
Install a storage expansion card on the PCIe slot.
For details, see
.
2.
Connect the expansion units to the NAS using one of the following topologies.
Important
QNAP recommends always using dual-path configuration to prevent storage downtime due to
expansion unit failure or cable disconnection. Single-path configuration should be used only in a
situation where it is not possible to use dual-path configuration.
Dual-path configuration
ES2486dc User Guide
Installation and Configuration
38