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Cisco UCS C240 M4

End of supportServers2U rack
Cisco UCS C240 M42U rack24 × SFF 2.5" bays

The Cisco UCS C240 M4 was a 2U 2-socket enterprise rack server powered by Intel Xeon E5-2600 v3 and v4 processors. Designed for storage-heavy workloads, big data, and virtualization, it supported up to 24 SFF drives, six PCIe 3.0 slots, and up to two GPU accelerators.

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Specifications

BrandCisco
FamilyUCS C-Series
Form factor2U rack
ReleasedSep 2014
End of saleAug 2018
End of supportAug 2023
ProcessorUp to 2x Intel Xeon E5-2600 v3 or v4 processors up to 22 cores each
Memory24x DDR4 DIMM slots supporting up to 1.5TB DDR4-2400
Drive baysUp to 24x 2.5-inch SAS/SATA/SSD drives or up to 12x 3.5-inch SAS/SATA drives
Expansion slotsUp to 6x PCIe 3.0 slots plus dedicated mLOM slot; supports up to 2x double-wide GPUs
NetworkmLOM slot for Cisco VIC adapters plus dual 1GbE onboard ports
Power supplyDual redundant hot-swap power supplies up to 1400W
ManagementCisco IMC

Generations

Compatible parts

Hard drives

Memory

Boot devices

SSDs

GPUs

Network adapters

RAID controllers

HBAs

Power supplies

Rail kits

TPM modules

Works together

How the Cisco UCS C240 M4 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

Fibre Channel SANiSCSI and NVMe/TCP over EthernetDirect-attached SASFile storage (NFS and SMB)

Fibre Channel SAN

Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).

Adapters for the server (check the fit list)

Switches

Storage

Optics

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server (check the fit list)

Switches

Storage

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

Direct-attached SAS

12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.

Adapters for the server (check the fit list)

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server (check the fit list)

Switches

Storage

Optics

File storage (NFS and SMB): how it fits together

Plan and size it

Check compatibility with Cisco

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Cisco has tested with the Cisco UCS C240 M4.

Equivalent models from other brands

FAQ

How many drives fit into the C240 M4?

Up to 24 front-accessible 2.5-inch SAS/SATA drives or 12 front-accessible 3.5-inch drives.

What successor replaced the C240 M4?

The Cisco UCS C240 M5 succeeded the C240 M4 in July 2017.

Buying or selling UCS C240 M4?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources