• Max. memory per VM: 16GB for 32bit, 64GB for 64bit guests
• Max. virtual block devices per VM: 16 paravirtualized, 16 fully virtualized with
paravirtualized drivers, 4 fully virtualized
• Max. virtual network devices per VM: 8
Supported Limits for Virtual Hosts Systems (VHS)
• Max. physical CPUs: 32 for 32bit, 64 for 64bit
• Max. domain 0 virtual CPUs: 32
• Max. physical memory: 16GB for 32bit, 1TB for 64bit
• Max. domain 0 physical memory: 16GB for 32bit, 480GB for 64bit
• Max. block devices: up to 12,000 SCSI logical units
• Max. iSCSI devices: 128
• Max. network cards: 8
• Max. VMs per host: 64
• Max. VMs per CPU core: 8
• Max. virtual network cards: 64 across all VMs in the system
6 Virtualization with Xen
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