Planning For Hardware - IBM Storwize V7000 Unified Manual

Fibre Channel bandwidth
Consider the Fibre Channel bandwidth. The bandwidth to the Fibre Channel fabric
might be halved if all four Fibre Channel ports per node canister are in use before
adding the file modules.
The bandwidth of a single 8 Gbps Fibre Channel port or of two 4 Gbps Fibre
Channel ports per node canister is more than enough to saturate the volume
input/output throughput (IOps) that the Storwize V7000 can deliver.
If the bandwidth to the Fibre Channel fabric is less than a total of 8 Gbps from
each node canister, consider upgrading the switches from 2 Gbps to either 4 Gbps
or 8 Gbps.
To determine whether bandwidth is a problem, monitor the Fibre Channel
throughput using the Storwize V7000 management GUI, while all four Fibre
Channel ports are connected:
1. Navigate to Monitoring > Performance in the management interface.
2. Select FC to show only the Fibre Channel performance in the Interfaces graph.
3. Watch for the maximum Fibre Channel throughput (FC MBps) during a high
4. If 90% of the calculated bandwidth for the Fibre Channel ports to be connected

Planning for hardware

Before you install the Storwize V7000 Unified system, plan the physical
configuration and the initial data configuration for the system. Although your
Storwize V7000 Unified enclosures are already installed and working, the full
planning detail is given in case it is needed for relocation. Locate your Storwize
V7000 Unified system physical configuration records to use as a reference as
needed.
Physical configuration planning of the Storwize V7000 Unified
system
Before you install the Storwize V7000 Unified system, plan the physical
configuration and the initial data configuration for the system. Certain physical site
specifications must be met before you can set up your system. This activity
includes verifying that adequate space is available, and that requirements for
power and environmental conditions are met.
Procedure
1. Use the hardware location chart to record the physical configuration of your
2. Use the cable connection tables to plan and record the storage enclosures and
3. Use the configuration planning tables to record the data required before the
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IBM Storwize V7000 Unified: Adding Storwize V7000 File Modules to an existing Storwize V7000 system 2073-720
usage period.
to the SAN is less than the peak Fibre Channel throughput with all Fibre
Channel ports connected to the SAN, volume IOps might be limited by the
Fiber Channel bandwidth (BW) after the file modules are connected.
system.
file modules connections.
initial setup and initial configuration.