Белая книга для Cisco Cisco UCS C420 M3 Rack Server
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StorMagic SvSAN with Cisco UCS C-Series Architecture
The architecture described in for this deployment guide is simple. It provides a highly available environment using a
combination of features from StorMagic SvSAN, VMware vSphere, and Cisco UCS and using the local storage available on
Cisco UCS C220 M4 Rack Servers.
combination of features from StorMagic SvSAN, VMware vSphere, and Cisco UCS and using the local storage available on
Cisco UCS C220 M4 Rack Servers.
Figure 5 shows the physical layout of the test environment. Each Cisco UCS C220 M4 server has an Intel Ethernet I350
1-Gbps network controller with two 1 Gigabit Ethernet LOM ports to connect to the network for VMware ESXi management,
SvSAN management, and virtual machine management. A neutral storage host (NSH) running on a separate host is used to
prevent a SvSAN cluster split-brain scenario. The NSH uses the management network for SvSAN heartbeat information only.
The servers are connected back to back using a Cisco UCS VIC 1227 10-Gbps dual-port converged network adapter (CNA)
SFP+ card for SvSAN iSCSI, mirroring, and vMotion traffic.
1-Gbps network controller with two 1 Gigabit Ethernet LOM ports to connect to the network for VMware ESXi management,
SvSAN management, and virtual machine management. A neutral storage host (NSH) running on a separate host is used to
prevent a SvSAN cluster split-brain scenario. The NSH uses the management network for SvSAN heartbeat information only.
The servers are connected back to back using a Cisco UCS VIC 1227 10-Gbps dual-port converged network adapter (CNA)
SFP+ card for SvSAN iSCSI, mirroring, and vMotion traffic.
Figure 5. Cisco UCS C220 M4 Servers Physical Connectivity for SvSAN Deployment.
Neutral Storage Host
SvSAN Heartbeat
SvSAN Heartbeat
SvSAN Heartbeat
SvSAN Heartbeat
Cisco UCS C220M4
Cisco UCS C220M4
1 Gbps
10 Gbps
10 Gbps
Cisco UCS VIC1227
10-Gbps Dual-Port CNA SFP+
Cisco UCS VIC1227
10-Gbps Dual-Port CNA SFP+,
SvSAN Heartbeat
vMotion, iSCSI, and Mirror Traffic
ESXi, SvSAN, and Virtual Machine
Management Network
ESXi, SvSAN, and Virtual Machine
Management Network
ESXi
Management
Network
ESXi
VSA1
ESXi
VSA2
Figure 6 shows the Cisco UCS C220 M4 storage configuration for ESXi and SvSAN deployment in a VMware cluster environment.
Each Cisco UCS C220 M4 server has two 32-GB Cisco Flexible Flash (FlexFlash) Secure Digital (SD) cards and 8 1.2-terabyte
(TB) 6.0-Gbps 10,000-rpm SAS hard disk drives (HDDs). A hypervisor partition is created using two 32-GB FlexFlash SD
cards in a mirrored (RAID 1) configuration to install ESXi. The eight 1.2-TB SAS drives are used to create a single RAID 5 drive
group with two virtual drives. The first virtual drive, with a total capacity of 7.6 TB, is allocated explicitly to the VSA as a raw disk
mapping (RDM). The VSA sees the virtual disk as a pool of storage resources from which iSCSI targets can be carved. These
iSCSI targets can be mirrored with other VSAs to create highly available storage. The VSA deployment uses the second 34.19-
GB virtual disk and must be configured as persistent storage on the ESXi host, and this data store requires 25 GB of free space.
Each Cisco UCS C220 M4 server has two 32-GB Cisco Flexible Flash (FlexFlash) Secure Digital (SD) cards and 8 1.2-terabyte
(TB) 6.0-Gbps 10,000-rpm SAS hard disk drives (HDDs). A hypervisor partition is created using two 32-GB FlexFlash SD
cards in a mirrored (RAID 1) configuration to install ESXi. The eight 1.2-TB SAS drives are used to create a single RAID 5 drive
group with two virtual drives. The first virtual drive, with a total capacity of 7.6 TB, is allocated explicitly to the VSA as a raw disk
mapping (RDM). The VSA sees the virtual disk as a pool of storage resources from which iSCSI targets can be carved. These
iSCSI targets can be mirrored with other VSAs to create highly available storage. The VSA deployment uses the second 34.19-
GB virtual disk and must be configured as persistent storage on the ESXi host, and this data store requires 25 GB of free space.