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Cisco UCS B420 M4

End of supportServersblade
Cisco UCS B420 M4blade4 × SFF 2.5" bays

The Cisco UCS B420 M4 was a full-width 4-socket blade server powered by Intel Xeon E5-4600 v3 and v4 processors. Designed for compute-heavy enterprise applications, database consolidation, and business intelligence, it accommodated 48 DDR4 DIMMs and up to four internal drives.

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Specifications

BrandCisco
FamilyUCS B-Series
Form factorblade
ReleasedSep 2014
End of saleAug 2018
End of supportAug 2023
ProcessorUp to 4x Intel Xeon E5-4600 v3 or v4 processors up to 22 cores each
Memory48x DDR4 DIMM slots supporting up to 3TB DDR4-2400 memory
Drive baysUp to 4x hot-swap 2.5-inch SAS/SATA/SSD drives
Mezzanine slotsUp to 3x mezzanine slots for Cisco VIC 1340 adapters
NetworkCisco UCS Virtual Interface Cards delivering up to 160Gbps unified fabric
Chassis compatibilityCisco UCS 5108 Blade Server Chassis
ManagementCisco UCS Manager

Generations

Compatible parts

Hard drives

Network adapters

Memory

SSDs

RAID controllers

TPM modules

Works together

How the Cisco UCS B420 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 B420 M4.

Equivalent models from other brands

FAQ

What processors were utilized in the UCS B420 M4?

The B420 M4 utilized Intel Xeon E5-4600 v3 or v4 4-socket processors.

What successor succeeded the B420 M4?

The Cisco UCS B480 M5 succeeded the B420 M4.

Buying or selling UCS B420 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