HP XP P9000 Auto LUN Software - Manual (Page 54)

Description Type Item
The following information is displayed for the Target LDEV: list Target LDEV
• 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.
Auto Plan Parameters section
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 Auto Migration
Function
The Sampling Term (Date) option buttons set the frequency at which
usage statistics are analyzed. The following options are available: option buttons Sampling Term (Date)
•
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.
Specify a time period for analyzing resource usage statistics by using
the From and To drop-down lists. drop-down lists Sampling Term (Time)
The Number of Sampling Points option buttons set the data that are
analyzed. The following options are available: option buttons Number of Sampling
Points
•
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.
Specify the time that auto migration starts by using the drop-down
lists. If the Auto Migration function is enabled, the auto migration drop-down lists Migration Time
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.
The time limit for the execution of an auto migration plan is specified
in the Max. migration duration field. Allowable values range from field Max. Migration
duration
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.
The disk usage limit during the execution of an auto migration plan
is specified in the Max. disk utilization field. Allowable values range field Max. disk utilization
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.
The maximum number of volumes that can be migrated automatically
during the execution of an auto migration plan is specified in the field Max. number of vols for
migration
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
54 Auto LUN GUI reference