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Min Storage Segment Size (MINSEG). The lower bound for storage segment sizes created on volumes
in this storage class. This value is the product of the Stripe Length (SL) and the Min Multiplier
(MINMULT).
Max Multiplier (MAXMULT). The Max Storage Segment Size (MAXSEG) must be a power of 2
multiple of the Stripe Length (SL). This selection list contains the valid power of 2 values from 1 (2^0)
to 16,777,216 (2^24). Select the appropriate multiplier from the selection list. The field Max Storage
Segment Size (MAXSEG) is set to the product of this value and Stripe Length (SL).
Max Storage Segment Size (MAXSEG). The upper bound for storage segment sizes created on volumes
in this storage class. This must be a power of 2 multiple of the Stripe Length (SL). This value is the
product of the Stripe Length (SL) and the Max Multiplier (MAXMULT).
Min Segments in VV (MINSVV). The minimum number of segments in a virtual volume. This value is
calculated as the VV SIZE (VVSIZE) parameter divided by the Max Storage Segment Size
(MAXSEG) parameter.
Max Segments in VV (MAXSVV). The maximum number of segments in a virtual volume. This value
is calculated as the VV SIZE (VVSIZE) parameter divided by the Min Storage Segment Size
(MINSEG) parameter.
Transfer Rate
Device I/O Rate (DIOR).
The approximate data transfer speed, in kilobytes per second (KB/sec),
which can be achieved by devices corresponding to Media Type. In disk storage classes, this field is
informational only.
Stripe Transfer Rate (STR). The estimated aggregate transfer rate for volumes of this type. This value
is the product of the Stripe Width (SW) and the Device I/O Rate (DIOR).
6.1.3. Tape Storage Class Configuration
HPSS Management Guide
November 2009
Release 7.3 (Revision 1.0)
162
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