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service request number. A number that helps
you to identify the cause of a problem, the failing
field-replaceable units (FRUs), and the service
actions that might be needed to solve the
problem. Service request numbers are generated
by the system error-log analysis, system
configuration code, and customer problem
determination procedures.
SMIT. System management interface tool.
SRN. Service request number.
SSA. Serial Storage Architecture.
SSA unique ID. The specific identifier for a
particular SSA device. Each SSA device has a
specific identifier that is not used by any other
SSA device in the whole world.
stretch. A set of stripes that is used to perform a
particular level of array management.
strip. The maximum amount of contiguous user
data that is mapped to one component.
stripe. A set of strips (with their mirrors) that
have corresponding LBAs on each component.
system disk. A disk that is owned by the using
system; that is, it does not belong to an array, and
it is not a hot spare disk.
U
unconfigure. (a) To take a device from the
available (configured) state to the defined state.
(b) To take out of use by the existing computer
system.
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uncouple. To separate the copy array from the
|
parent RAID-1 or RAID-10 array. The metadata of
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the copy array is updated to show that it is no
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longer part of the parent RAID array. The
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metadata of the parent array is updated to show
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that it is no longer associated with the copy array.
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The copy array is brought online and becomes
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available as a free resource.
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User's Guide and Maintenance Information
unrecoverable error. An error for which
recovery is impossible without the use of recovery
methods that are outside the normal computer
programs.
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user mode. In the operating system, a mode in
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which a process is run in the user's program
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rather than in the kernel.
V
vary off. To make a device, control unit, or line
not available for its normal intended use.
vary on. To make a device, control unit, or line
available for its normal intended use.
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vital product data (VPD). In the operating
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system, information that uniquely defines system,
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hardware, software, and microcode elements of a
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processing system.
VPD. Vital product data.
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