Axis Q7920 Chassis Installationshandbuch Seite 16

AXIS Q7920 Chassis
Optimizing Performance
Firmware Upgrade
The AXIS Q7920 has an automated built-in function for firmware upgrade. If a blade that is inserted
in slot 1 in the AXIS Q7920 contains a newer firmware than the current one in AXIS Q7920. The
AXIS Q7920 will automatically be upgraded to the new firmware version. The upgrade may take up
to one minute to accomplish.
Network Redundancy
The network redundancy in AXIS Q7920 is controlled by software and requires that at least two
network connectors (either RJ45 or SFP) are connected. There are four uplink groups in AXIS Q7920,
each with an SFP and an RJ45 connector. The SFP connector has priority over the RJ45 connector.
In case of a malfunction in a connection the AXIS Q7920 will check for a connection in the
same uplink group or if needed check for a connection in another uplink group until a network
connection can be established.
Hot-swap
The AXIS Q7920 supports hot-swap of blades, fan tray and PSU. They can be removed and/or
inserted without affecting operation of the AXIS Q7920.
Rack Monitoring Daemon
In order to use the rack monitoring daemon function, the blade inserted in slot 1 must be an
AXIS Q7436, AXIS Q7406, AXIS Q7414, AXIS P7224 or newer.
Maximum network output
In order to optimize the network performance of the AXIS Q7920 activate as many uplink groups as
possible (either RJ45 or SFP). Spread the blades evenly among the slot groups.
For every slot group activated an uplink group should be activated. See below for the connection
between slot groups and uplink groups.
Slot group 1: Slot 1–4. Uplink group 1
Slot group 2: Slot 5–7. Uplink group 2
Slot group 3: Slot 8–10. Uplink group 3
Slot group 4: Slot 11–14. Uplink group 4
The table below provides an example of how the blades can be evenly inserted in a 4, 6, 8 and
10 blades installation.
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