Veritas Storage Foundation Cross-Platform Data Sharing 5.0 AdministratorÆs Guide, HP-UX 11i v3, First Edition, May 2008

6 Contents
Changing the alignment of a non-CDS disk group ................................. 29
Splitting a CDS disk group ......................................................................... 30
Moving objects between CDS disk groups and non-CDS disk groups .. 30
Moving objects between CDS disk groups ................................................ 31
Joining disk groups ...................................................................................... 31
Changing the default CDS setting for disk group creation ................... 31
Creating non-CDS disk groups ................................................................... 31
Upgrading an older version non-CDS disk group ................................... 32
Replacing a disk in a CDS disk group ........................................................ 32
Setting the maximum number of devices for CDS disk groups ............ 32
Changing the DRL map and log size ......................................................... 33
Creating a volume with a DRL log ............................................................. 33
Setting the DRL map length ....................................................................... 34
Displaying information ...................................................................................... 35
Determining the setting of the CDS attribute on a disk group ............. 35
Displaying the maximum number of devices in a CDS disk group ...... 36
Displaying map length and map alignment of traditional DRL logs ... 36
Displaying the disk group alignment ....................................................... 36
Displaying the log map length and alignment ........................................ 36
Displaying offset and length information in units of 512 bytes .......... 37
Default activation mode of shared disk groups .............................................. 37
Additional considerations when importing CDS disk groups ....................... 38
Chapter 4 File system data sharing
Considerations about data in the file system .................................................. 41
File system migration ......................................................................................... 42
Specifying the migration target ........................................................................ 42
Examples of target specifications ............................................................. 43
Using the fscdsadm command ........................................................................... 44
Checking that the metadata limits are not exceeded ............................. 44
Maintaining the list of target operating systems ................................... 44
Enforcing the established CDS limits on a file system .......................... 45
Ignoring the established CDS limits on a file system ............................ 45
Validating the operating system targets for a file system .................... 46
Displaying the CDS status of a file system .............................................. 46
Migrating a file system one time ....................................................................... 46
Migrating a file system on an ongoing basis ................................................... 47
Stopping ongoing migration ...................................................................... 48
When to convert a file system ........................................................................... 48
Converting the byte order of a file system ...................................................... 48
Importing and mounting a file system from another system .............. 51
Appendix A Transferring data between platforms