48 Chapter 7 Operation of 5U enclosures
7 Operation of 5U enclosures
CAUTION Only operate the storage enclosure in a dust-free environment to meet temperature control
and airflow requirements.
CAUTION If you partially populate the storage enclosure with drives in their carriers (DDICs), you must
comply with several additional requirements.
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You must install a minimum of 14 DDICs. Populate in rows, 14 DDICs at a time, from front to back of the
drawer, and alternate between drawers.
a. Fill the front row in Drawer 1, then front row in Drawer 2.
b. Fill the middle row in Drawer 1, then the middle row in Drawer 2.
c. Fill the back row in Drawer 1, then the back row in Drawer 2.
The total number of populated drawer rows cannot differ by more than 1 row.
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Populate rows with DDICs that have the same form factor and same rotational speed.
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Do not mix drive types within the same drawer.
Before you power on the storage enclosure, you must take the following actions:
1. Review the installation checklist, confirming the successful completion of the entire sequence.
2. Verify that all drive modules in their carriers (DDICs) are in their correct slots, that you install them in sets of
14, and that you properly engaged them by pressing firmly until each one locks into place on its midplane.
3. Confirm you have met ambient temperature requirements identified in the Environmental Reqs section.
4. Confirm that airflow paths at the front and rear of the enclosure chassis are clear and remain clear.
5. Proceed to the power on task.
6. Load the system OS and appropriate applications to the controller module (CM).
7. Access the software management interface to complete your system setup.
Apply power to the 5U enclosure
The storage enclosure relies on main power provided through separate, independent power distribution. If you
lose main power for any reason, the storage enclosure automatically restarts after power restoration.
CAUTION Adhere to the following electrical safety guidelines:
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During installation, never connect a power cord to a power supply unit (PSU) before installing it in the
appropriate storage enclosure slot.
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Only connect the power cord to power that complies with the product specifications within a range of 200 to
240VAC, per the hazardous voltage warning label on the PSU.
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During service, always remove the PSU from power by disconnecting the power connector before removal
of the PSU.
