# Text automatically generated by txt2man

     NAME
          cache_metadata_size - Estimate the size of the metadata
          device needed for a given configuration.

     SYNOPSIS
          cache_metadata_size [options]

     DESCRIPTION
          cache_metadata_size estimates the size of the metadata.
               Either --nr-blocks, or --block-size and --device-size
               must be specified.

     OPTIONS
          --nr-blocks {natural}
               Specify the number of cache blocks.

          --block-size {sectors}
               Specify the size of each cache block in 512 byte sec-
               tors.

          --device-size {sectors}
               Specify total size of the fast device used in the
               cache.  In 512 byte sectors.

          --max-hint-width {nr bytes}
               Specify hint width.

              Cache policies use a per block 'hint' to record extra info (for instance
              hit counts).  At the moment all policies use a 4 byte hint
              width.  If you want to use a different hint width specify it with this
              switch.

     EXAMPLE
          $ cache_metadata_size --nr-blocks 10240

          $ cache_metadata_size --block-size 128 --device-size 1024000

     SEE ALSO
          cache_dump(8), cache_repair(8), cache_restore(8)

     AUTHOR
          Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen
          <heinzm@redhat.com>

     Page 1               System Manager's Manual    (printed 5/23/22)