ATTO Technology S-Class manual Hardware Maintenance

WARNING

The only way to completely de-energize the unit is to turn off both power supplies and unplug both power cords from the back of the unit.

Turning the power switch

On Stand-byto the Stand-by position on one power supply does not completely turn

off power to the array; it is not an AC on-off switch. Power may still be in the unit through the other power supply.

CAUTION

All modular components must be replaced by qualified personnel only.

Do not leave empty openings in the Diamond Storage Array. Empty openings affect airflow and may cause the unit to overheat and shut down. Components are electrostatic sensitive. Use proper grounding methods when working with or around the array.

Always store spare components in proper ESD containers when not in use.

The power supply and blower assembly may be replaced while the unit is running. (Refer to Hot Swap Operating Instructions on page 71)

•Host interface cards and management cards may only be replaced when the Diamond Storage Array is off. Backup the unit fully before replacing these components.

•You may remove a disk drive sled while the array is

powered on. Refer to the instructions in Hot Swap Operating Instructions on page 71 for details.

Exhibit 7-1: The management card may be accessed via a serial port DB-9 connector or an optional Ethernet connection.

3 Replace the disk drive sled with another sled.

To remove a Host Interface Card

1Power down both power supplies

2Remove any cable attached to the port.

3Loosen the retaining screws

4Pull the Host Interface Card out of the unit.

5To replace the card, push it back into the unit and tighten the retaining screws.

To remove the power supply (Exhibit 7-4),

1Press the Stand-by power switch to the off position

2Remove the power cord

3Using a No. 1 Phillips screwdriver, loosen the screws holding the assembly in place.

4Pull out the assembly and replace it with another.

5Securely tighten all screws after replacing the component.

To remove a blower assembly (Exhibit 7-4),

1Using a No. 1 Phillips screwdriver, loosen the screws holding the assembly in place.

To remove a management card

1Power down both power supplies.

2Loosen the screws holding the card in place.

3Pull out the assembly and replace it with another.

4Securely tighten all screws after replacing the component.

To remove a disk drive sled (Exhibit 7-2)

1Loosen the screws on either side of the assembly

2Pull on the assembly’s handle and carefully slide it out of its bay.

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2Pull out the assembly and replace it with another.

3Securely tighten all screws after replacing the component.

WARNING

Do not leave empty openings on the front or rear of the Diamond Storage Array under any circumstances.