HP XP P9500 User Manual page 54

Item
Target LDEV
Auto Plan Parameters section
Auto Migration
Function
Sampling Term (Date)
Sampling Term (Time)
Number of Sampling
Points
Migration Time
Max. Migration
duration
Max. disk utilization
Max. number of vols for
migration
54 Auto LUN GUI reference
Type Description
list The following information is displayed for the Target LDEV:
option buttons The possible values for Auto Migration Function are Enable and
Disable. If the Auto Migration function is enabled, auto migration
plans are executed automatically at the established time interval.
option buttons The Sampling Term (Date) option buttons set the frequency at which
usage statistics are analyzed. The following options are available:
drop-down lists Specify a time period for analyzing resource usage statistics by using
the From and To drop-down lists.
option buttons The Number of Sampling Points option buttons set the data that are
analyzed. The following options are available:
drop-down lists Specify the time that auto migration starts by using the drop-down
lists. If the Auto Migration function is enabled, the auto migration
operation starts at the specified time. The Migration Time should be
set at least one hour after the ending time specified in the Sampling
Term.
field The time limit for the execution of an auto migration plan is specified
in the Max. migration duration field. Allowable values range from
10 to 120 minutes. If the auto migration plan is not complete within
the specified limit, the remaining migration operation(s) are performed
at the next scheduled execution time.
field The disk usage limit during the execution of an auto migration plan
is specified in the Max. disk utilization field. Allowable values range
from 10 to 100 percent. If the most recent usage for any source or
target parity group is over this limit when auto migration starts, Auto
LUN cancels the auto migration plan and will retry the plan at the
next scheduled execution time.
field The maximum number of volumes that can be migrated automatically
during the execution of an auto migration plan is specified in the
Max. number of vols for migration field. Allowable values range from
1 to 40 volumes. If the number of volumes to be migrated is larger
LDEV: the ID of the volume is displayed in the following format:
LDKC:CU:LDEV.
RAID: the RAID type of the volume.
Protection: the data protection level.
PG: the parity group ID.
HDD: the type of hard disk drive.
None: resource usage statistics are not analyzed and auto
migration plans are not created.
Every day: auto migration plans are created every day.
Once every X days: auto migration plans are created every X days.
Use the list to specify the number of days (that is, the value of X).
Once a week: auto migration plans are created once a week. Use
the list to select the day of the week.
Once a month: auto migration plans are created on the Xth day
of the month. Use the list to specify a day in the month.
All sampling points: Auto LUN uses all average usage rates during
the Sampling Term to determine disk usage.
X highest sampling points: Auto LUN uses the Xth highest average
usage rate during the Sampling Term to determine disk usage. Use
the list to specify the value of X.