V
IXEL
I
N
S
PEED
™ SAN S
TORAGE
S
WITCH
M
ODEL
375
C
HAPTER
3 S
WITCH
M
ANAGEMENT
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SER
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G
UIDE
EMBEDDED
IN
THE
FUTURE
OF
STORAGE
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The page is arranged as a grid of check boxes for assigning ports to cascades ("Trunk Groups").
Load Indicators
The Load Balancing page incorporates two sets of visual indicators for measuring traffic:
•
Port Load Indicators–the horizontal bars on the right side of the page that display the
current load for each port.
•
Trunk Load Indicators–the vertical bars at the bottom of the page that display the current
load for each trunk group.
These bars indicate the amount of traffic across a trunk or port. The size of the bars increase in
correlation to the amount of traffic and, as a bar’s size increases, can identify a specific trunk or
port that is overloaded. If overloading occurs, move one or more ports to a different trunk in the
group.
To change the load balancing settings:
1. Click a Trunk Group option to place a port into a specific trunk group.
2. Continue to assign ports to trunk groups as necessary.
3. When finished, click
Submit
.
Fairness and Prioritization
The concept of "fairness" is based on the principle of ensuring fair device access and
communication across all devices in a storage system. The switch incorporates fairness and
prioritization through Vixel’s InSpeed technology and Automatic Trunking and Load Balancing
functionality. In cooperation with each other, these features ensure even and equal access
through multiple links fairly–effectively multiplying bandwidth.
Device prioritization can be achieved using Load Balancing and assigning only a specific device
port to a particular cascade. This ensures a specific device will always have a dedicated trunk.
Figure 3-25: Load Balancing page
