." Text automatically generated by txt2man cache_metadata_size - Online Linux Manual PageSection : 8
Updated : Device Mapper Tools
Source : System Manager's Manual

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

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SYNOPSIS.fam C cache_metadata_size [options] .fam T

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

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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. .fam C 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. .fam T

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EXAMPLE$ cache_metadata_size --nr-blocks 10240 $ cache_metadata_size --block-size 128 --device-size 1024000

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SEE ALSOcache_dump(8), cache_repair(8), cache_restore(8)

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AUTHORJoe Thornber <ejt@redhat.com>, Heinz Mauelshagen <heinzm@redhat.com> 0

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Johanes Gumabo

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