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

Contents
Chapter 1 Overview of CDS
General concepts ....................................................................................................9
Shared data across platforms ....................................................................10
Disk drive sector size ...................................................................................10
Block size issues ...........................................................................................11
Operating system data ................................................................................11
CDS disk access and format ................................................................................11
CDS disk types ..............................................................................................12
CDS disk groups ...........................................................................................13
Non-CDS disk groups ...........................................................................................15
Disk group alignment ..........................................................................................15
Alignment values .........................................................................................16
Object alignment during volume creation ...............................................17
Chapter 2 Setting up your system
Creating CDS disks from uninitialized disks ...................................................19
Creating CDS disks by using vxdisksetup ................................................19
Creating CDS disks by using vxdiskadm ..................................................19
Creating CDS disks from initialized VxVM disks ............................................20
Creating a CDS disk from a disk that is not in a disk group ..................20
Creating a CDS disk from a disk that is already in a disk group ...........20
Creating CDS disk groups ...................................................................................20
Creating a CDS disk group by using vxdg init .........................................21
Creating a CDS disk group by using vxdiskadm ......................................21
Converting non-CDS disks to CDS disks ...........................................................22
Converting a non-CDS disk group to a CDS disk group .................................23
Side effects of conversion ...........................................................................24
Defaults files .........................................................................................................25
Chapter 3 Maintaining your system
Disk tasks ..............................................................................................................27
Changing the default disk format ..............................................................27
Restoring CDS disk labels ...........................................................................27
Disk group tasks ...................................................................................................29
Changing the alignment of a disk group during disk encapsulation ...29