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Cluster configuration
VMware vSphere ESXi hosts and their resources are pooled together into clusters. These clusters
contain the CPU, memory, network, and storage resources to allocate to virtual machines. Clusters scale
up to a maximum of 12 hosts. Clusters can support thousands of virtual machines.
The clusters can also support a variety of Cisco UCS C-Series servers running inside the same cluster.
Note: Some advanced CPU functionality might be unavailable if more than one CPU model is running a
cluster.
Datastores
Vblock Systems support a mixture of datastore types: block level storage using VMFS or file level storage
using NFS.
The maximum size per VMFS5 volume is 64 TB (50 TB VMFS3 @ 1 MB). VMware 5.5 and higher limits
the VMDK file size to 62TB. Each host/cluster supports a maximum of 255 volumes.
VCE optimizes the advanced settings for VMware vSphere ESXi hosts that are deployed in Vblock
Systems to maximize the throughput and scalability of NFS data stores. The Vblock System supports a
maximum of 256 NFS datastores per host.
Virtual networks
Virtual networking in the AMP-2P uses the standard virtual switches. The Cisco Nexus 1000V distributed
virtual switch manages virtual networking in the Vblock System. The Cisco Nexus 1000V Switch ensures
consistent, policy-based network capabilities to all servers in the data center by allowing policies to move
with a VM during live migration. This provides persistent network, security, and storage compliance.
Alternatively, with VMware 5.5 and later, you can select the VMware vSphere Distributed Switch (VDS) to
provide virtual networking for the Cisco C-Series servers. Virtual Center manages the VDS and ensures
consistent, policy-based networking capabilities, including load-balancing, prioritizing and segregating
traffic, and monitoring the health and security of the switch.
The Cisco Nexus 1000V Switch and VMware VDS use intelligent network Class of Service (CoS)
marking, which match physical switch Quality of Service (QoS) policies to shape network traffic according
to workload type and priority.
Related information
Management hardware components (see page 30)
Management software components (see page 31)
Virtualization
Vblock
®
240 Architecture Overview
27
©
2014 VCE Company, LLC.
All Rights Reserved.
- VCE Vblock 1
- System 240 1
- Architecture Overview 1
- Revision history 2
- Contents 3
- Contents Vblock 4
- Introduction 5
- Accessing VCE documentation 6
- Overview Vblock 8
- Architecture summary 9
- Overview 10
- 240 Architecture Overview 10
- 2014 VCE Company, LLC 10
- All Rights Reserved 10
- Connectivity overview 11
- Related information 13
- Compute layer hardware 14
- Scaling up compute resources 15
- Bare metal support 15
- Compute layer hardware Vblock 16
- Storage layer hardware 17
- Hardware features 18
- 5548UP Switches 18
- Scaling up storage resources 19
- Storage layer hardware Vblock 20
- EMC Secure Remote Support 22
- Network layer hardware 23
- Network layer hardware Vblock 24
- Virtualization 25
- VMware vCenter Server 27
- Management components 29
- System 240 configurations 38
- System 240 power options 41
- Additional references 43
- Storage components 44
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