HP XP P9500 Storage - Manual (Page 235)

system logger
service MVS series standard functionality for writing, displaying, and deleting log data.
Thin Provisioning
Z Software that allocates a virtual volume to a host so that a necessary amount of
physical space can be used according to the data write request.
tier Media in a pool grouped by drive type and performance. A maximum of three
tiers can be defined for one pool based on the performance of the media.
tier relocation A function of Smart Tiers Z. This function automatically allocates data to
appropriate media according to the access frequency, based on the information
collected by performance monitoring. Frequently accessed data is allocated to
an upper tier, which consists of faster media, and infrequently accessed data is
allocated to a lower tier, which consists of lower media.
tiering policy Information about which tiers data is to be located in, and how data is to be
relocated.
tiering policy
group A group of multiple SMS storage groups or volumes. A tiering policy specification
or operation can be performed for each tiering policy group.
tiering policy
group definition
file A file that defines tiering policy groups.
tiering policy
group structure A REXX variable structure that stores tiering policy values. Information about the
tiering policy group structure is saved in the tiering policy group definition file.
tiering policy
information CSV
file A CSV file that specifies information about the volumes or an SMS storage group,
which are to be defined in the tiering policy group.
tiering policy level A level of tiers in which data can be relocated. There are six levels, from 0
(default) through 5 . If a tiering policy level is specified, pages are assigned to
the tiers that belong to the specified level, and data is saved on the pages.
VOLSER A volume serial number used by a mainframe host to manage storage volumes.
User Guide 235