IBM DS3200 Storage Subsystem manual Best practices guidelines, Downloads and drivers Flashes

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Best practices guidelines

To ensure optimal operation of your system, always follow these best practices guidelines:

vMake sure that the storage subsystem is in an optimal state before you shut it down. Never turn off the power if any amber LED is lit; be sure to resolve any error conditions before you shut down the storage subsystem.

vBack up the data on your storage drives periodically.

vTo maintain power redundancy, connect the DS3200 right and left power-supply units to two independent external power circuits through ac power distribution units (PDUs) inside a rack cabinet or directly into external receptacles. Similarly, the right and left power supplies of the storage expansion enclosures (such as the EXP3000) that are attached to the DS3200 should be connected to the same two independent external power circuits as the DS3200. This ensures that the DS3200 and all its attached storage expansion enclosures will have power in the event that only one power circuit is available. In addition, having all the right or all the left power cables connected to the same power circuit enables the DS3000 devices in the configuration to power-on simultaneously during an unattended restoration of power.

Note: Do not overload the circuits that power your storage subsystem and storage expansion enclosures. Use additional pairs of ac PDUs. See Table 1 on page 4 for information about storage subsystem power requirements. Contact your technical-support representative for additional information.

vBefore any planned system shutdown or after any system additions, removals, or modifications (including firmware updates, logical drive creations, storage partitioning definitions, hardware changes, and so on), save the storage subsystem profile as explained in the DS3000 Storage Manager Version 2 Installation and User's Guide for your operating system. Save the profile in a location other than in the logical drives that are created for the DS3200.

vDuring any maintenance or attended power-on procedure, carefully follow the power-on sequence that is described in “Turning on the storage subsystem” on page 46. Make sure that each component of the storage subsystem is powered-on in the correct order during this entire power-on procedure to make sure that the controller will be able to optimally access all of the storage subsystems.

vThe storage subsystem supports simultaneous power-on to the system components; however, you should always follow the power-on sequence that is described in “Turning on the storage subsystem” on page 46 during any attended power-on procedure.

6System Storage DS3200 Storage Subsystem: Installation, User’s, and Maintenance Guide