Turns out a lot of systems have been dropped from the latest version of vSphere 5.5

Hopefully, this list will shrink as I am sure the recently released  x222 node from the IBM PureFlex Systems will raise some eyebrows.

http://www.virten.net/2013/09/vsphere-esxi-5-5-unsupported-hardware/

Double check your vendors support when updating ESXi hosts from VMware vSphere 5.x to 5.5. There are a lot of systems that are no longer supported. The following servers were supported in 5.x but are no longer supported in 5.5:

 

• HP ProLiant BL280c G6 – No vSphere ESXi 5.5 Support
• HP ProLiant BL2x220c G6 – No vSphere ESXi 5.5 Support
• HP ProLiant BL465c G6 – No vSphere ESXi 5.5 Support
• HP ProLiant BL490c G6 – No vSphere ESXi 5.5 Support
• HP ProLiant BL490c G7 – No vSphere ESXi 5.5 Support
• HP ProLiant BL495c G6 – No vSphere ESXi 5.5 Support
• HP ProLiant BL680c G5 – No vSphere ESXi 5.5 Support
• HP ProLiant BL685c G5 – No vSphere ESXi 5.5 Support
• HP ProLiant BL685C G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL160 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL160se G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL170h G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL180 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL288 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL320 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL360p Gen8 SE – No vSphere ESXi 5.5 Support
• HP ProLiant DL370 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL385 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL580 G5 – No vSphere ESXi 5.5 Support
• HP ProLiant DL585 G5 – No vSphere ESXi 5.5 Support
• HP ProLiant DL585 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant DL785 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant ML150 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant ML330 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant ML370 G6 – No vSphere ESXi 5.5 Support
• HP ProLiant SL160s G6 – No vSphere ESXi 5.5 Support
• HP ProLiant SL160z G6 – No vSphere ESXi 5.5 Support
• HP ProLiant SL165s G7 – No vSphere ESXi 5.5 Support
• HP ProLiant SL165z G7 – No vSphere ESXi 5.5 Support
• HP ProLiant SL170s G6 – No vSphere ESXi 5.5 Support
• HP ProLiant SL170z G6 – No vSphere ESXi 5.5 Support
• HP ProLiant SL2x170z G6 – No vSphere ESXi 5.5 Support
• HP ProLiant SL390s G7 – No vSphere ESXi 5.5 Support
• IBM BladeCenter HS12 – No vSphere ESXi 5.5 Support
• IBM Flex System x222 Compute Node – No vSphere ESXi 5.5 Support
• IBM System x iDataPlex dx360 M2 – No vSphere ESXi 5.5 Support
• IBM System x iDataPlex dx360 M3 – No vSphere ESXi 5.5 Support
• IBM System x3100 M4 – No vSphere ESXi 5.5 Support
• IBM System x3200 M3 – No vSphere ESXi 5.5 Support
• IBM System x3250 M3 – No vSphere ESXi 5.5 Support
• IBM System x3250 M4 – No vSphere ESXi 5.5 Support
• IBM System x3300 M4 – No vSphere ESXi 5.5 Support
• IBM System x3400 M2 – No vSphere ESXi 5.5 Support
• IBM System x3400 M3 – No vSphere ESXi 5.5 Support
• IBM System x3500 M2 – No vSphere ESXi 5.5 Support
• IBM System x3500 M3 – No vSphere ESXi 5.5 Support
• IBM System x3620 M3 – No vSphere ESXi 5.5 Support
• IBM System x3630 M3 – No vSphere ESXi 5.5 Support
• IBM System x3755 M3 – No vSphere ESXi 5.5 Support
• IBM System x3850 M2 – No vSphere ESXi 5.5 Support
• IBM System x3950 M2 1 Node – No vSphere ESXi 5.5 Support
• DELL PowerEdge C6145 – No vSphere ESXi 5.5 Support
• DELL PowerEdge C6220 – No vSphere ESXi 5.5 Support
• DELL PowerEdge T605 – No vSphere ESXi 5.5 Support
• DELL PowerEdge 1950 – No vSphere ESXi 5.5 Support
• DELL PowerEdge 1955 – No vSphere ESXi 5.5 Support
• DELL PowerEdge 2900 – No vSphere ESXi 5.5 Support
• DELL PowerEdge 2950 – No vSphere ESXi 5.5 Support
• DELL PowerEdge 6950 – No vSphere ESXi 5.5 Support
• DELL PowerEdge C1100 – No vSphere ESXi 5.5 Support
• DELL PowerEdge C2100 – No vSphere ESXi 5.5 Support
• DELL PowerEdge C6100 – No vSphere ESXi 5.5 Support
• DELL PowerEdge M600 – No vSphere ESXi 5.5 Support
• DELL PowerEdge M605 – No vSphere ESXi 5.5 Support
• DELL PowerEdge R200 – No vSphere ESXi 5.5 Support
• DELL PowerEdge R300 – No vSphere ESXi 5.5 Support
• DELL PowerEdge T100 – No vSphere ESXi 5.5 Support
• DELL PowerEdge T300 – No vSphere ESXi 5.5 Support
• Cisco CAM 35/45 – No vSphere ESXi 5.5 Support
• Cisco UCS – B200 M2 Blade Server – No vSphere ESXi 5.5 Support
• Cisco UCS – B200 M3 Blade Server – No vSphere ESXi 5.5 Support
• Cisco UCS – B22 M3 Blade Server – No vSphere ESXi 5.5 Support
• Cisco UCS – B230 M2 Blade Server – No vSphere ESXi 5.5 Support
• Cisco UCS – B250 M2 Blade Server – No vSphere ESXi 5.5 Support
• Cisco UCS – B420 M3 – No vSphere ESXi 5.5 Support
• Cisco UCS – B440 M2 Blade Server – No vSphere ESXi 5.5 Support