HP XP Racks - Manual (Page 13)

must ensure that the capacity of a Thin Provisioning or Thin Provisioning Z virtual volume is not
increasing if you plan on using that virtual volume in an Auto LUN plan.
In this manual, Thin Provisioning indicates both Thin Provisioning and Smart Tiers. Thin Provisioning
Z indicates Thin Provisioning Z and Smart Tiers Z.
Auto LUN with Continuous Access Synchronous Z and Continuous Access
Journal Z
When the selected source volume is a primary volume or a secondary volume of a Continuous
Access Synchronous Z or Continuous Access Journal Z pair consisting of internal volumes and/or
Thin Provisioning Z virtual volumes, there are some target volume candidates that should not be
considered. The following table lists the possible Internal/THP V-VOL - Continuous Access
Synchronous Z/Continuous Access Journal Z pair combinations, and tells which type of volume
should not be considered as a target volume based on the Continuous Access Synchronous
Z/Continuous Access Journal Z pair combination and the selected source volume.
Table 4 Poor target volume candidates for Cnt Ac-S Z/Cnt Ac-J Z pair combinations
Poor Target Volume Candidate Source Volume Cnt Ac-S Z or Cnt Ac-J Z Pair
Candidate
None Internal primary volume Internal primary volume, Internal secondary
volume
THP V-VOL Internal secondary volume
Internal volume Internal primary volume Internal secondary volume, THP V-VOL
Ssecondary volume
THP V-VOL THP V-VOL secondary volume
None THP V-VOL primary volume THP V-VOL primary volume, Internal
secondary volume
None Internal secondary volume
Internal volume THP V-VOL primary volume THP V-VOL primary volume, THP V-VOL
secondary volume
None THP V-VOL secondary volume
CAUTION:
•
If you do the Continuous Access Synchronous Z operation so that the Continuous Access
Synchronous Z pair status becomes other than Suspended when Auto LUN and Continuous
Access Synchronous Z share a volume, the Auto LUN process stops.
•
If you do the Continuous Access Journal Z operation so that the Continuous Access Journal Z
pair status becomes other than Suspended when Auto LUN and Continuous Access Journal Z
share a volume, the Auto LUN process stops.
Auto LUN with Continuous Access Synchronous and Continuous Access
Journal
When the selected source volume is a primary volume or a secondary volume of a Continuous
Access Synchronous or Continuous Access Journal pair consisting of internal volumes and/or Thin
Provisioning virtual volumes, there are some target volume candidates that should not be considered.
The following table lists the possible Internal/THP V-VOL - Continuous Access
Synchronous/Continuous Access Journal pair combinations, and tells which type of volume should
not be considered as a target volume based on the Continuous Access Synchronous/Continuous
Access Journal pair combination and the selected source volume.
Auto LUN with Continuous Access Synchronous Z and Continuous Access Journal Z 13