HP XP P9500 Storage - Manual (Page 264)

Description Item
Select Enable or Disable when using or not using Smart Tiers on the selected
pool. Smart Pool
• If Mixable is set to Enable, a pool that consists of RAID 1 volumes or external
volumes to which the cache mode is set to Disable cannot be changed from
Disable to Enable.
• If Mixable is set to Disable, a pool that consists of RAID 1 volumes or external
volumes cannot be changed from Disable to Enable. A pool that consists of
pool-VOLs of different RAID levels cannot be changed from Enable to Disable.
In Snapshot, you cannot change the setting of this function.
Settings for using performance monitoring, tier relocation, edit buffer space for
new page assignment, and buffer space for tier relocation if Smart Pool is
enabled. Options for Smart Pool
•
Tier Management: Select Auto or Manual.
•
Cycle Time: When selecting Auto in the Tier Management option, select the
cycle of performance monitoring and tier relocation from the Cycle Time list.
• Monitoring Period: When selecting 24 Hours in the Cycle Time list, specify
the start and end time of performance monitoring in 00:00 to 23:59 (default).
Take one or more hours between the starting time and the ending time. If you
specify the starting time later than the ending time, the performance monitoring
continues until the time when you specify as the ending time on the next day.
• Monitoring Mode: Specify the monitoring mode. Select Continuous Mode to
perform tier relocation weighted to the past period monitoring result. Select
Period Mode to perform the tier relocation on a specific cycle,.
•
Buffer Space for New page assignment: Type an integer value from 0 to 50
as the percentage (%) to set for tier 1, tier 2, and tier 3.
• Buffer Space for Tier relocation: Type an integer value from 2 to 40 as the
percentage (%) to set for tier 1, tier 2, and tier 3.
264 Thin Provisioning and Smart Tiers GUI reference