Inspecting And Cleaning The Array; Inspecting Fans; Cleaning The Array - Hitachi AMS 2000 Series Service Manual

Inspecting and cleaning the array

Inspecting fans

The cooling fans are built into the power supplies in all units, and in the fan
units in the AMS 2500. They may be inspected while the arrays are running.
CAUTION! The fan blades rotate at high speed. Be careful not to let
anything enter the screens over the fans and catch in the blades.
Complete the following steps to inspect the array fans:
1. Open the rear door of the rack.
2. Visually check each fan and make sure that it is rotating and not clogged
with dust.
3. Close the rear door of the rack.
4. For AMS 2500 arrays, open the front door of the rack.
5. Visually check each fan in the fan units and make sure that they are
rotating and not clogged with dust.
6. Close the rear door of the rack.

Cleaning the array

CAUTION! Keep the fan screens and air vents on the array clean.
If they become clogged with dust, air circulating within the aray
can be reduced. This can cause the array to overheat and shut
down or fail.
NOTE: Be careful not to move the array during cleaning.
Complete the following steps to clean the array. See
1. Open the rack rear door.
2. Wipe the fan screens with a dry towel to remove dust. If needed, use a
vacuum cleaner to remove heavy dust collections.
3. Close the rear door.
4. Remove the front bezel from one of the units in the rack. See chapter 4
for instructions if needed.
5. Wipe the front and back sides of the bezels with a dry towel. If needed,
Use a vacuum cleaner to remove heavy dust collections.
6. Reattach the front bezel to the unit. Be careful not to pinch your fingers
when the ball catches engage and pull the front bezel tightly to the unit.
Maintenance
Hitachi AMS 2000 Family Storage System Service Guide
Figure 5-1.
5–3