HP XP P9500 Storage - Manual (Page 3)

Contents
1 Overview of Auto LUN................................................................................5
Overview of Auto LUN..............................................................................................................5
Limitations of Auto LUN.............................................................................................................5
Source and target volumes.........................................................................................................5
Manual volume migration..........................................................................................................5
When to use manual volume migration........................................................................................7
Automatic volume migration.......................................................................................................7
Migrating volumes to another HDD class.................................................................................8
Migrating volumes within the same HDD class.........................................................................8
2 Requirements...........................................................................................10
System requirements................................................................................................................10
Source and target volume general requirements..........................................................................10
Volumes assigned to resource groups....................................................................................10
Supported and prohibited source and target volumes..................................................................11
Auto LUN with Thin Provisioning or Thin Provisioning Z virtual volumes..........................................14
Auto LUN with Continuous Access Synchronous Z and Continuous Access Journal Z........................15
Auto LUN with Continuous Access Synchronous and Continuous Access Journal .............................15
Auto LUN and Continuous Access Journal Z...............................................................................16
Auto LUN and Continuous Access Journal..................................................................................17
3 Auto LUN planning...................................................................................19
Manual migration plans..........................................................................................................19
Estimating differential tables.....................................................................................................19
Calculating the required amount of differential tables for a mainframe volume................................19
Control cylinders by mainframe emulation type......................................................................19
3390-3 emulation type example..........................................................................................20
Calculating the required amount of differential tables for an open-system volume............................20
Control cylinders by open emulation type..............................................................................20
Differential tables calculation for an OPEN-V volume..............................................................20
Differential tables calculation for other open emulation types...................................................21
Running concurrent manual migration plans...............................................................................22
Estimating the number of concurrent manual migration plans...................................................22
Fixed parity groups.................................................................................................................22
Auto Migration Parameters.......................................................................................................23
4 Auto LUN operations................................................................................24
Migrating a volume manually...................................................................................................24
Deleting a manual migration plan.............................................................................................26
Setting up auto migration plan parameters.................................................................................26
Deleting auto migration plans...................................................................................................27
Recreating auto migration plans ..............................................................................................27
Stopping the Auto Migration function........................................................................................28
Reserving a volume.................................................................................................................28
Fixing a parity group..............................................................................................................29
Changing disk usage rate limit for an HDD class........................................................................30
Viewing the migration history logs............................................................................................30
5 Auto LUN monitoring................................................................................31
Auto migration messages.........................................................................................................31
Auto migration general status messages................................................................................31
Successful auto migration plan messages..............................................................................32
Stopped auto migration plan messages.................................................................................32
Contents 3