initial setting
ssh ip
grpadmin / grp
Configuration options
The PS-M4110 has four basic configuration options. It can be configured on Fabric A or Fabric B, and each Fabric Configuration can use a 10Gb KR switch or a 10Gb KR Pass-Thru Module (PTM). Figure 3 depicts a basic configuration using Dell Networking MXL switches, however any supported switches can be used in this configuration.
The following are basic networking recommendations for implementing the PS-M4110 Storage Blade.
- IOMs must be Interconnected
- External switches can be used to provide interconnection if rack mounted arrays are needed.
- Must use “Single Fabric” I/O module Placement; supported fabrics are “A” and “B” only
- Fabric A not supported on older M1000e systems (Mid-plane v1.0); Version should be physically marked on the chassis or you can check it using the CMC command. Upgrading is allowed but generally not recommended because of the required downtime and required professional services.
- It is recommended that PS-M4110 be placed into their own pool (not mixed with rack mount arrays)
PS4110 family: 1x 10GbE port per controller = 2x 10GbE ports total
For all members (arrays) in a given SAN Group all ports should be connected to the same subnet. This allows the arrays to communicate with each other as a group of peer members. The arrays must be in the same subnet as the PS Series Group IP address.
* Note: Hosts can be in a different subnet as long as those hosts have layer 3 routing available to the subnet containing the arrays and the group’s well known IP address.
It is strongly recommended that a physically separated network be used for iSCSI traffic and that this network not be shared with other traffic types.
- Note: If there is a requirement to share the same physical networking infrastructure with other non-iSCSI
traffic then Data Center Bridging (DCB) is the recommended method for sharing networking resources.
Notes
Note: For best performance and reliability, we recommend that all interconnection paths between non- stacking switches (LAGs) use a dynamic link aggregation protocol such as LACP.
Failover behavior in the PS-M4110
Each PS-M4110 array is configured with dual controllers, active and passive connections, and redundant fabrics to provide redundancy and prevent volume connections between hosts and SAN from being dropped in the event of a failure. There are three failure scenarios that are protected by the array:
- In the event of a link failure, the active link of the active port goes down, and the standby
link for the same port takes over.
- In the event of a switch failure, both active and passive ports automatically link to the
redundant fabric switch.
- If the active controller fails, the passive controller takes over.
Optimization
--mtu=9000