Man page - cache_metadata_size(8)
Packages contas this manual
- cache_check(8)
- thin_trim(8)
- era_check(8)
- thin_metadata_size(8)
- thin_dump(8)
- era_invalidate(8)
- cache_writeback(8)
- cache_metadata_size(8)
- thin_rmap(8)
- cache_dump(8)
- thin_metadata_unpack(8)
- thin_migrate(8)
- era_dump(8)
- thin_restore(8)
- thin_ls(8)
- thin_delta(8)
- thin_repair(8)
- cache_restore(8)
- thin_metadata_pack(8)
- cache_repair(8)
- thin_check(8)
- era_restore(8)
Package: thin-provisioning-tools
apt-get install thin-provisioning-tools
apt-get install thin-provisioning-tools
Manuals in package:
Documentations in package:
Manual
| 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 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 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@redhat.com>, Heinz Mauelshagen <heinzm@redhat.com>
| Device Mapper Tools | System Manager's Manual |