cache_metadata_size(8) System Manager's Manual cache_metadata_size(8) NAME cache_metadata_size - Estimate the size of the metadata device needed for a given configu- ration. 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 sectors. --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 AT redhat.com>, Heinz Mauelshagen <heinzm AT redhat.com> System Manager's Manual Device Mapper Tools cache_metadata_size(8)
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