Upon completion of this module, you should be able to :
Define the function and relationship of SSVM objects
Display properties of SSVM objects
Initialize a disk drive for SSVM use
Create a disk group and add disks to it
Rename a SSVM disk drive
Remove a disk from a disk group
Remove a disk from SSVM control
Determine available free disk space
Record the command line equivalent for any VMSA operation
Initialization
When the SUN StoEdge Volume Manager initializes a new disk, it creates two partitions: a small partition called the private region, and a large partition called the public region that covers the remainder of the disk
Encapsulation
If you have existing data on the disk, you would not want to initialize the disk, as this destroys any data. Instead, you can choose to encapsulation the disk.
In order for Sun StrEdge Volume Manager to encapsulation the disk, there should be at least 1024 sectors in an unused slice at the beginning or end of the disk and two free partitions.
Identifying Storage Devices
The best way to identify the type and model of storage devices connected to your system is to read the product model tag and study the related technical manuals. Occasionally, you might be working with systems remotely and need to identify the hardware configuration using operating system commands and other tools
The luxadm command can give very useful information if you konw some basic controller addresses. It is still limited to certain storage models, and will give error messages if unsupported devices are examined.
Command-line status
As early as possible, learn how to use three very important command-line tools to gather SSVM status:
vxprint
vxdisk
vxdg
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