Drives; Drive Slots - IBM ESS 3000 Hardware Planning And Installation Manual

EMS node can manage many ESS building blocks that are part of the same ESS cluster. For more
information on the EMS node, see Model 5148-21L and 5148-22L server specifications.
The EMS node also serves as a third GPFS quorum node in a configuration with one building block.
System management
An EMS node in an ESS 3000 cluster provides system management functions. ESS 3000 GUI runs on the
EMS nodes and provides management and health monitoring capabilities. The EMS node also runs a
container with Ansible playbook that can provide orchestration of complex tasks, such as cluster
configuration, file system creation, and code update. Figure 6 on page 19 shows high-level view of
system management topology.
ESS 3000
ESS GS/GL
Figure 6. High-level view of system management

Drives

ESS 3000 supports industry-standard 2.5-inch NVMe-attached SSD drive options.
The following storage capacities are supported: 1.92 TB, 3.84 TB, 7.68 TB, and 15.36 TB.
Drives are hot swappable from front of the enclosure.

Drive slots

A drive slot represents the location in an enclosure into which a drive can be inserted.
Each drive slot must contain either a drive or an empty carrier. The empty carriers do not have drive
indicators. The numbering scheme for the drive slots is indicated on the enclosure.
The following table graphically displays enclosures that have 24 drives, with 2.5-inch drive slots. The
drive slots are arranged in one row of vertically mounted drive assemblies.
ESS 3000 supports 12 and 24 drive configurations. All drives must be identical in an ESS 3000 enclosure.
In a 12 drive configuration, drives must be installed in slots 1- 6 and 13-18.
1 2 3 4 5
C10-T2
C10-T1
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Ess30021
Container
EMS
Playbook
Tasks
Ansible
GUI
Chapter 2. Technical overview 19