Best Practices Guidelines - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

v Do not leave the device where others can handle and possibly damage the
v While the device is still in its static-protective package, you should hold the
v Remove the device from its package and install it directly into your system unit
v Take additional care when handling devices during cold weather because heating

Best practices guidelines

To ensure optimal operation of your system, always follow these best practices
guidelines:
v Back up the data on your storage drives periodically.
v Before any planned system shutdown or after any system changes (additions,
v Ensure that your system is in an optimal state before shutting down. Never turn
v During any maintenance or attended power-up procedure, carefully follow the
v The storage subsystem supports simultaneous power-up to the system
v A storage system in an optimal state should recover automatically from an
v Using the DS4000 Storage Manager client, save the DS4000 subsystem
v DS4300 Model 60U/60X only: To maintain power redundancy, plug the DS4300
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IBM TotalStorage DS4300 Fibre Channel Storage Subsystem: Installation, User's, and Maintenance Guide
device.
device and touch an unpainted metal part of the system unit for at least two
seconds. This drains static electricity from the package and from your body.
without setting it down. If it is necessary to set the device down, place it in its
static-protective package. Do not place the device on your system unit cover or
on a metal table.
reduces indoor humidity and increases static electricity.
removals, or modifications), save controller subsystem profiles as explained in
the IBM DS4000 Storage Manager Installation and User's Guide for your
operating system.
the power off if any fault light is lit; be sure to resolve any error conditions before
you shut down the system.
power-up sequence listed in "Turning on the storage subsystem" on page 92.
Each component of the subsystem should be checked that it is powered-on in
the proper order during this entire power-up procedure to ensure the controller
will be able to optimally access all of your storage subsystems.
components; however, you should always follow the power-up sequence listed in
"Turning on the storage subsystem" on page 92 during any attended power-up
procedure.
unexpected shutdown and unattended simultaneous restoration of power to
system components. After power is restored, call IBM support if any of the
following conditions occur:
– The storage subsystem logical drives and arrays are not displayed in the
Storage Manager graphical user interface (GUI).
– The storage subsystem logical drives and arrays do not come online.
– The storage subsystem logical drives and arrays seem to be degraded.
configuration profile to a disk that is not affected every time you make changes to
the DS4000 subsystem configuration (such as logical drive creation or
modification, or storage partitioning changes).
dual-controller storage subsystem's right and left power supplies into two
independent external power circuits through ac distribution units inside a rack
cabinet or directly into external receptacles. Similarly, the right and left power
supplies of the DS4000 storage expansion enclosures attached to the DS4300
storage subsystem should be plugged into the same two independent external
power circuits as the DS4300 storage subsystem. This ensures that the DS4300