Dell PowerStore 1200T EMC PowerStore Hardware Information Guide for PowerStore - Page 22

Drive 2.5 Inch NVMe expansion enclosure (ENS24) component descriptions, NVMe expansion enclosure

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4 24 Drive 2.5 Inch NVMe expansion enclosure (ENS24) component descriptions Topics: • NVMe expansion enclosure NVMe expansion enclosure The NVMe expansion enclosure includes slots for 24 2.5-inch NVMe SSD drives. It uses an NVMe interface for communication between the nodes and the NVMe expansion enclosure. The NVMe expansion enclosure uses the RDMA over Converged Ethernet (RoCE) network protocol to enable Remote Direct Memory Access (RDMA). This allows the system to encapsulate RDMA packets over Ethernet, which results in low latency, lower CPU usage, and higher bandwidth. Because PowerStore utilizes an NVMe over Fabric (NVMe/OF) standard, the NVMe expansion enclosure delivers an end-to-end NVMe solution. NOTE: The NVMe expansion enclosure is not supported on systems that include SAS expansion enclosures. NOTE: The NVMe expansion enclosure requires that the base enclosure includes the v2 embedded module and a 100 GbE 2-port card. NOTE: The NVMe expansion enclosure does not support NVMe SCM drives and is not supported with SCM-only base enclosures. NVMe expansion enclosure front view The NVMe expansion enclosure includes the following components: ● PCIe NVMe SSD drives in 2.5-inch carriers (hot-swappable) ● Status LEDs 1 2 34 5 6 Figure 17. NVMe expansion enclosure front view Table 17. NVMe expansion enclosure component locations Location Description 1 Expansion enclosure status LEDs 22 24 Drive 2.5 Inch NVMe expansion enclosure (ENS24) component descriptions

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24 Drive 2.5 Inch NVMe expansion enclosure
(ENS24) component descriptions
Topics:
•
NVMe expansion enclosure
NVMe expansion enclosure
The NVMe expansion enclosure includes slots for 24 2.5-inch NVMe SSD drives. It uses an NVMe interface for communication
between the nodes and the NVMe expansion enclosure. The NVMe expansion enclosure uses the RDMA over Converged
Ethernet (RoCE) network protocol to enable Remote Direct Memory Access (RDMA). This allows the system to encapsulate
RDMA packets over Ethernet, which results in low latency, lower CPU usage, and higher bandwidth. Because PowerStore
utilizes an NVMe over Fabric (NVMe/OF) standard, the NVMe expansion enclosure delivers an end-to-end NVMe solution.
NOTE:
The NVMe expansion enclosure is not supported on systems that include SAS expansion enclosures.
NOTE:
The NVMe expansion enclosure requires that the base enclosure includes the v2 embedded module and a 100 GbE
2-port card.
NOTE:
The NVMe expansion enclosure does not support NVMe SCM drives and is not supported with SCM-only base
enclosures.
NVMe expansion enclosure front view
The NVMe expansion enclosure includes the following components:
●
PCIe NVMe SSD drives in 2.5-inch carriers (hot-swappable)
●
Status LEDs
2
1
4
5
6
3
Figure 17. NVMe expansion enclosure front view
Table 17. NVMe expansion enclosure component locations
Location
Description
1
Expansion enclosure status LEDs
4
22
24 Drive 2.5 Inch NVMe expansion enclosure (ENS24) component descriptions