16
IMPORTANT:
Before powering on the switch, make sure the fan tray airflow direction and the preferred airflow
direction of the switch are the same. If they are not the same, the system generates traps and logs.
You can use the
fan prefer-direction
command to configure the preferred airflow direction for the
switch. By default, the preferred airflow direction of the switch is from the port side to the power
supply side. For more information about the
fan prefer-direction
command, see
HPE FlexFabric
5980 Switch Series Fundamentals Command Reference
.
Select fan trays for the switch as needed. For the available fan trays and their specifications, see
"
Fan trays
."
To install a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Unpack the fan tray and verify that the fan tray model is correct.
3.
Orient the fan tray with the "TOP" mark at the top. Grasping the handle of the fan tray with one
hand and supporting the fan tray bottom with the other, slide the fan tray into the slot along the
guide rails until the fan tray is fully seated in the slot and has a firm contact with the backplane.
See
Figure 15
.
Figure 15 Installing an X712 Bck(pwr)-Frt(prt) HV2 fan tray in the switch
Removing a fan tray
WARNING!
•
Ensure electricity safety and never touch the rotating fans when you hot-swap a fan tray.
•
To prevent a fan from causing loud noise, do not touch the fan blades and rotation axis, even if the fan is not
rotating.
To remove a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Grasp the handle of the fan tray with one hand and pull the fan tray part way out of the slot.
Support the fan tray bottom with the other and pull the fan tray completely out of the slot.
3.
Put the removed fan tray in an antistatic bag.
