onspaces -c -x: Create an extspace

Use the onspaces -c -x option to create an extspace.

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Syntax:

>>-onspaces -c-- -x--extspace-- -l--location-- -o--offset------->

>-- -s--size---------------------------------------------------><

Element Purpose Key Considerations
-c Creates a dbspace, blobspace, sbspace, or extspace

You can create up to 2047 storage spaces of any type.

After you create a storage space, you must back up both this storage space and the root dbspace. If you create a storage space with the same name as a deleted storage space, perform another level-0 backup to ensure that future restores do not confuse the new storage space with the old one.

For more information, see creating a dbspace, blobspace, or extspace, in the chapter on managing disk space in the HCL Informix® Administrator's Guide.

-l location Specifies the location of the extspace

The access method determines the format of this string.

Restrictions: String. Value must not be longer than 255 bytes.

For more information, see creating an extspace, in the chapter on managing disk space in the HCL Informix Administrator's Guide.

-o offset Indicates, in kilobytes, the offset into the disk partition or into the device to reach the initial chunk of the new blobspace, dbspace, or sbspace

Restrictions: Unsigned integer. The starting offset must be equal to or greater than 0. The starting offset plus the chunk size cannot exceed the maximum chunk size. The maximum offset is 2 or 4 terabytes, depending on the platform.

For more information, see allocating raw disk space, in the chapter on managing disk space in the HCL Informix Administrator's Guide.

-ssize Indicates, in kilobytes, the size of the initial chunk of the new blobspace or dbspace Restrictions: Unsigned integer. The size must be equal to or greater than 1000 kilobytes and a multiple of the page size. The starting offset plus the chunk size cannot exceed the maximum chunk size.

The maximum chunk size is 2 or 4 terabytes, depending on the platform.

-x extspace Names the extspace to be created Restrictions: Extspace names can be up to 128 bytes. They must be unique, begin with a letter or underscore, and contain only letters, digits, underscores, or $ characters.

For more information, see extspaces, in the chapter on managing disk space in the HCL Informix Administrator's Guide.


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