Summary of Contents for Infortrend EonStor DS Series
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Expansion Enclosure Guide Version: 7.3 Updated: April 2019 Abstract: This guide contains instructions and system limitations for adding expansion enclosures to Infortrend storage system without affecting its existing storage operations.
Most of the products have onboard SAS ports to connect expansion enclosures and some models support SAS expansion board to connect more expansion systems. Take a look at the table below for Infortrend’s products, the maximum number of drives, and their supported interfaces: Hybrid SAS Interface...
Infortrend allows some models to support hybrid expansion enclosure connections. The onboard SAS expansion port (either dual or single port) supports up to 448 drives for each expansion chain, which is limited by the SAS chip used. Infortrend also offers SAS 12 Gb/s expansion board for some models, which uses the same SAS chip as the onboard expansion ports. You can use twice the supported number of drives of up to 896 (1792 for EonStor GS/GSc 5000) by cascading the second expansion chain via the expansion host boards.
SAS protocol for expansion. SAS 12 Gb/s Storage System For Infortrend storage systems with SAS 12 Gb/s drive-side, the onboard SAS expansion ports are marked as IN. Figure 4: SAS 12 Gb/s Storage System Onboard Expansion Port For any type of expansion enclosure, connect a SAS cable (blue) from the primary controller's SAS expansion port of the storage system to the primary controller's OUT SAS port of the first expansion enclosure.
SAS 6 Gb/s Storage System For SAS 6 Gb/s drive-side storage system, the SAS expansion ports are marked as OUT. Figure 9: SAS 6 Gb/s Storage System Onboard Expansion Port For any type of expansion enclosure, attach a SAS cable (blue) from the primary controller's SAS OUT port of the storage system to the primary controller's IN SAS port of the expansion enclosure.
Infortrend Expansion Guide Model Classification (Single and Redundant) Infortrend products, especially the high-availability models, are also classified by the number of controllers: single and redundant. Redundant storage models are expandable via the redundant expansion enclosure. Single storage models, on the other hand, are expandable via the single expansion enclosures.
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