Allocating NTFS file space on Windows

On Windows, the database server uses NTFS files by default. You can use standard file names for unbuffered files in the NTFS file system. If all your partitions are FAT files, you can convert one to NTFS.

To allocate NTFS file space for database server disk space or mirrored space, the first step is to create a null (zero bytes) file.

To allocate NTFS file space:

  1. Log in as a member of the Informix-Admin group.
  2. Open an MS-DOS command shell.
  3. Change to the directory where you want to allocate the space, as in the following example:
    c:> cd \usr\data
  4. If necessary, convert the partition to NTFS by running the following command: convert /fs:ntfs
  5. Create a null file with the following command: c:> copy nul my_chunk
  6. If you want to verify that the file was created, use the dir command to do so.

After you allocate the file space, you can create the dbspace or other storage space as you normally would, using onspaces. For information about how to create a dbspace or a blobspace, see Creating a dbspace that uses the default page size and Creating a blobspace.

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