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Facilité d'utilisation
Changes in HP 3PAR System Reporter Software 3.1 since Version 2.9
Item
Description
regionmover (Adaptive
AO behavior continues unchanged for HP 3PAR OS 3.1.1 and earlier. For HP 3PAR
Optimization)
OS 3.1.2 systems, Adaptive Optimization behaves as follows:
• AO configurations for HP 3PAR OS systems are allowed insofar as they are not
deleted following an upgrade from HP 3PAR OS 3.1.1. However, these AO
configurations are not executed by regionmover and are marked as inactive.
• Following an upgrade from HP 3PAR OS 3.1.1, AO configurations remain and
can be used by administrators as a reference to recreate the AO configurations
on the nodes.
NOTE:
Recreation of the AO configuration on the nodes is a manual process.
There is no automated means of transferring AO configurations from System Reporter
onto the HP 3PAR OS 3.1.2 system.
AO algorithms
Key enhancements to the AO algorithms are as follows:
• AO parameters have been tuned so that the system is a bit more aggressive moving
data to faster tiers, especially in cases where the slow tier has very little spread in
access rate density among the regions.
• Absolute thresholds have been added for access rate density above which regions
are automatically considered for tier 0 and 1. If service time for a lower destination
tier is too high, regions are not moved to that tier unless upper tiers have no space.
This had already been considered when moving up to a faster tier; now it is also
considered when moving down to a slower tier.
• Instead of using an absolute service time as a threshold for determining whether
the destination tier is too busy, the service time threshold is determined based on
CPG drive type and RAID type. For example, the threshold will be lower for SSDs
and RAID1 than it will be for NL with RAID6.
Defects Fixed in HP 3PAR System Reporter 3.1
Bug
Description
Resolution
Available AO
For System Reporter 2.9, the AO configuration looks for two samples A check has been added to abort
samples cover
within the measurement hours interval specified. However, because
the AO unless at least 50% of the
too small a
the two samples could be very close together (that is, the available
desired interval is covered by the
fraction of the
samples covered too small a fraction of the requested measurement
samples.
requested
interval), only a very limited view of the measurement interval was
measurement
possible.
hours.
VV WWN
In HP 3PAR OS 3.1.2, VV WWNs can be 16 bytes (32 characters)
Column width has been increased
column width is
rather than 8 bytes (16 characters), so the column width must be
in the HP 3PAR OS 3.1.2 code.
too narrow (8
increased for tables such as vvspace.
bytes [16
characters]).
On Windows
The sysrptsched process appears to stall when trying to create a
This issue has been resolved in
OS, scheduled
process to run a scheduled report.
System Reporter 2.9 MU1 P02
report creation
and in System Reporter 3.1. The
can hang.
fix is to detect the hang and
restart the processes.
Scheduling does Where a schedule is specified, the weekday name can be used. The The code was modified to get the
not work
system matched against the English name (Monday, Tuesday, etc.).
weekday number and be
correctly in
In different locales, the weekday name might differ and fail to match. translated explicitly to the English
different locales.
weekday names so that the
comparison works even in
different locales.
Changes in HP 3PAR System Reporter Software 3.1 since Version 2.9
5
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