This article is intended to provide an example for administrators wishing to leverage SvSAN using direct attach cabling. Other configurations may also work.
Resolution/Information
SvSAN fully supports back to back or direct attach cabling in both a 2x node or a 3x node environment.
2x node
Example 2x node IP Schema
| HOST 1 | HOST 2 | ||
|---|---|---|---|
| Purpose | IP address | Purpose | IP address |
|
Host 1 management connection (Hostname: host1.example.com) |
10.1.100.11/24 |
Host 2 management connection (Hostname: host2.example.com) |
10.1.100.12/24 |
| Host 1 storage connection 1 | 192.168.1.1/24 | Host 2 storage connection 1 | 192.168.1.2/24 |
| Host 1 storage connection 2 | 192.168.2.1/24 | Host 2 storage connection 2 | 192.168.2.2/24 |
|
VSA 1 management connection (Hostname: VSAhost1.example.com) |
10.1.100.13/24 |
VSA 2 management connection (Hostname: VSAhost2.example.com) |
10.1.100.14/24 |
| VSA 1 iSCSI and mirror connection 1 | 192.168.1.11/24 | VSA 2 iSCSI and mirror connection 1 | 192.168.1.12/24 |
| VSA 1 iSCSI and mirror connection 2 | 192.168.2.11/24 | VSA 2 iSCSI and mirror connection 2 | 192.168.2.12/24 |
| Default gateway | 10.1.100.254/24 | Default gateway | 10.1.100.254/24 |
| DNS name server (primary) | 10.1.100.2/24 | DNS name server (primary) | 10.1.100.2/24 |
| DNS name server (secondary) | 10.1.100.3/24 | DNS name server (secondary) | 10.1.100.3/24 |
3x node
In a 3x node the networking becomes more complicated so is detailed below:
Example 3x node IP Schema
| HOST 1 | HOST 2 | HOST 3 | |||
|---|---|---|---|---|---|
| Purpose | IP address | Purpose | IP address | Purpose | IP address |
|
Host 1 management connection (Hostname: host1.example.com) |
10.1.100.11/24 |
Host 2 management connection (Hostname: host2.example.com) |
10.1.100.12/24 |
Host 3 management connection (Hostname: host3.example.com) |
10.1.100.13/24 |
| Host 1 storage network 1 | vmnic2 - 192.168.1.1/24 | Host 2 storage network 1 | N/A | Host 3 storage network 1 | vmnic3 - 192.168.1.3 |
| Host 1 storage network 2 | vmnic3 - 192.168.2.1/24 | Host 2 storage network 2 | vmnic2 - 192.168.2.2/24 | Host 3 storage network 2 | N/A |
| Host 1 storage network 3 | N/A | Host 2 storage network 3 | vmnic3 - 192.168.3.2/24 | Host 3 storage network 3 | vmnic2 - 192.168.3.3/24 |
|
VSA 1 management connection (Hostname: VSAhost1.example.com) |
10.1.100.13/24 |
VSA 2 management connection (Hostname: VSAhost2.example.com) |
10.1.100.14/24 |
VSA 3 management connection (Hostname: VSAhost3.example.com) |
10.1.100.15/24 |
| VSA 1 iSCSI and mirror network 1 | 192.168.2.11/24 | VSA 2 iSCSI and mirror network 1 | N/A | VSA 3 iSCSI and mirror network 1 | 192.168.1.13/24 |
| VSA 1 iSCSI and mirror network 2 | 192.168.2.11/24 | VSA 2 iSCSI and mirror network 2 | 192.168.2.12/24 | VSA 3 iSCSI and mirror network 2 | |
| VSA 1 iSCSI and mirror network 3 | N/A | VSA 2 iSCSI and mirror network 3 | 192.168.3.12/24 | VSA 3 iSCSI and mirror netwwork 3 | 192.168.3.13/24 |
| Default gateway | 10.1.100.254/24 | Default gateway | 10.1.100.254/24 | Default gateway | 10.1.100.254/24 |
| DNS name server (primary) | 10.1.100.2/24 | DNS name server (primary) | 10.1.100.2/24 | DNS name server (primary) | 10.1.100.2/24 |
| DNS name server (secondary) | 10.1.100.3/24 | DNS name server (secondary) | 10.1.100.3/24 | DNS name server (secondary) | 10.1.100.3/24 |
Three SvSAN datastores presented in a 3x node back to back networking configuration
Host1, Host2, Host3 networking left to right:
Within this configuration there should be 3x disks with 2x paths to each disk:
See Also
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