Rack installation
The following table lists the rack installation options that are available for the SR250 server.
Table 40. Rack installation options
Description Part number
Feature
code
Maximum
quantity
4-post rail kits
ThinkSystem Tool-less Friction Rail v2 4M17A13564 B42B 1
Front VGA port
ThinkSystem SR250/SR150 Front VGA Connector Kit 4Z57A12653 B419 1
The following table summarizes the rail kit features and specifications.
Table 41. Rail kit features and specifications summary
Feature Tool-less Friction Rail
Part number 4M17A13564
CMA No support
Rail length 751.2 mm (29.6 in.)
Rail type Half-out slide (friction)
Tool-less installation Yes
In-rack server maintenance No
1U PDU support Yes
0U PDU support Limited*
Rack type IBM and Lenovo 4-post, IEC standard-compliant
Mounting holes Square or round
Mounting flange thickness 2 mm (0.08 in.) – 3.3 mm (0.13 in.)
Distance between front and rear mounting flanges^ 609.6 mm (24 in.) – 863.6 mm (34 in.)
* If a 0U PDU used, the rack must be at least 1000 mm (39.37 in.) deep.
^ Measured when mounted on the rack, from the front surface of the front mounting flange to the rear most point of the rail.
Operating systems
The SR250 server supports the following operating systems:
Microsoft:
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Red Hat:
Red Hat Enterprise Linux 7.5
SUSE:
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 12 SP3
VMware:
VMware vSphere 6.7 (ESXi)
VMware vSphere 6.5 (ESXi) Update 2
For the latest information about the specific versions and service levels that are supported and any other
prerequisites, see the Operating System Interoperability Guide: http://lenovopress.com/redposig.
Physical specifications
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