add mirror argument: Add a mirror chunk (SQL administration API)

Use the add mirror argument with the admin() or task() function to add a mirror chunk to a dbspace.

Syntax

>>-EXECUTE FUNCTION--+-admin-+--(------------------------------->
                     '-task--'      

>--"add mirror"--,--"space_name"--,--"path_name"--,------------->

>--"offset"--,--"mirror_path"--,--"mirror_offset"--)--;--------><


Element	Description	Key Considerations
mirror_path	The disk partition or unbuffered device of the initial chunk of the dbspace, blobspace, or sbspace that performs the mirroring.
mirror_offset	The offset to reach the mirrored chunk of the newly mirrored dbspace, blobspace, or sbspace.	See admin() and task() Argument Size Specifications.
offset	The offset into the disk partition or into the unbuffered device in kilobytes to reach the initial chunk of the newly mirrored dbspace, blobspace, or sbspace.	See admin() and task() Argument Size Specifications.
path_name	The disk partition or unbuffered device of the initial chunk of the dbspace, blobspace, or sbspace that you want to mirror.
space_name	The name of a dbspace, blobspace, or sbspace to mirror.

Usage

This function is equivalent to the onspaces -m command.

Example

The following example adds a mirror chunk to a blobspace named blobsp3:

EXECUTE FUNCTION task("add mirror","blobsp3","/dev/raw_dev1",
"10240","/dev/raw_dev2","200");