15.00 - REBUILDMAP - Teradata Database

Teradata Database Support Utilities

prodname
Teradata Database
vrm_release
15.00
category
Configuration
featnum
B035-1180-015K

REBUILDMAP

Purpose  

The REBUILDMAP command rebuilds the cylinder allocation map on a storage device after the block code or cylinder ID control fields of a cylinder index have been manually changed or patched. Such changes will not be effective until the allocation map has been rebuilt.

Rebuilding the map requires a Teradata Database restart, which is performed automatically by REBUILDMAP.

Note: REBUILDMAP can be used only when Teradata Database is not running, and Filer scope is set to a single AMP vproc. For more information on scope, see “SCOPE (or VPROC)” on page 206.

Caution:

Rebuilding the allocation map on a device destroys the existing allocation map. For more information on the proper use of this command to repair large file system structures, see “Repairing Cylinders” on page 90.

Syntax  

 

Syntax Element

Description

cylid

Specifies the original cylinder ID of the modified cylinder. cylid is the 64-bit identifier of a cylinder, entered as a 16‑character hexadecimal number.