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Best practices guidelines
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Storage server components
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6
IBM TotalStorage FAStT600 Fibre Channel Storage Server: Installation and User's Guide
v Take additional care when handling devices during cold weather because heating
reduces indoor humidity and increases static electricity.
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,
removals, or modifications), save controller subsystem profiles as explained in
the IBM FAStT Storage Manager Installation and User's Guide for your operating
system.
v Ensure that your system is in an optimal state before shutting down. Never turn
the power off if any fault light is lit; be sure to resolve any error conditions before
you shut down the system.
v During any maintenance or attended power-up procedure, carefully follow the
power-up sequence listed in "Turning on the storage server" on page 46. 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.
v The storage subsystem supports simultaneous power-up to the system
components; however, you should always follow the power-up sequence listed in
"Turning on the storage server" on page 46 during any attended power-up
procedure.
v A storage system in an optimal state should recover automatically from an
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.
v FAStT600 Model 60U/60X only: To maintain power redundancy, plug the
FAStT600 dual-controller storage server'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 FAStT drive enclosures attached to the FAStT600 storage server
should be plugged into the same two independent external power circuits as the
FAStT600 storage server. This ensures that the FAStT600 storage server and all
its attached drive enclosures will have power if only one power circuit is
available. In addition, having all the right or all the left power supplies plugged
into the same power circuit will enable the components in the storage subsystem
to power on simultaneously during an unattended restoration of power. See
Figure 40 on page 41 for an example of redundant power connections.
The topics in this section show the components of the FAStT600 storage server.
All FAStT600 storage server models support hot-swap Fibre Channel hard drive
CRUs and cooling fan CRUs, so you can remove and replace these components
without turning off the storage server. In addition, the FAStT600 storage server
models 60X/60U support hot-swap power supplies and RAID controller CRUs.
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