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

35Maintaining your system

Displaying information

This section describes the following tasks:

■ Determining the setting of the CDS attribute on a disk group

■ Displaying the maximum number of devices in a CDS disk group

■ Displaying map length and map alignment of traditional DRL logs

■ Displaying the disk group alignment

■ Displaying the log map length and alignment

■ Displaying offset and length information in units of 512 bytes

Determining the setting of the CDS attribute on a disk group

To determine the setting of the CDS attribute on a disk group

◆ Use the vxdg list command or the vxprint command to determine the

setting of the CDS attribute, as shown in the following examples:

# vxdg list

NAME STATE ID

dgTestSol2 enabled,cds 1063238039.206.vmesc1

# vxdg list dgTestSol2

Group: dgTestSol2

dgid: 1063238039.206.vmesc1

import-id: 1024.205

flags: cds

version: 110

alignment: 8192 (bytes)

If logmap_len is specified

■ The value is constrained by size of the log, and

cannot exceed the size of the on-disk map.

Thesize of the on-disk map in blocks can be

calculated from the following formula:

round(loglen/nmaps) - 24

where nmaps is 2 for a private disk group, or

33 for a shared disk group.

■ The value of logmap_len cannot exceed the

number of bytes in the on-disk map.

If loglen is specified

■ Specifying a value that is less than twice the

disk group alignment value results in an error

message.

■ The value is constrained by size of the logging

subdisk.