NAME<\/a> cache_writeback<\/b> – writeback dirty blocks to the origin device.<\/p>\n cache_writeback<\/b> [options<\/i>] –metadata-device<\/b> {device|file} –origin-device<\/b> {device|file} –fast-device<\/b> {device|file}<\/p>\n cache_writeback<\/b> is an offline tool that writes back dirty data to the data device (origin). Intended for use in recovery scenarios when the SSD is giving IO errors.<\/p>\n This tool cannot be run on a live cache.<\/p>\n -h, –help<\/b><\/p>\n Print help and exit.<\/p>\n -V, –version<\/b><\/p>\n Print version information and exit.<\/p>\n –metadata-device {device|file}<\/b><\/p>\n Location of cache metadata.<\/p>\n –origin-device {device|file}<\/b><\/p>\n Slow device being cached.<\/p>\n –fast-device {device|file}<\/b><\/p>\n Fast device containing the data that needs to be written back.<\/p>\n –no-metadata-update<\/b><\/p>\n Do not update the metadata to clear the dirty flags.<\/p>\n You may want to use this flag if you\u2019re decommissioning the cache. Specify the size for the metadata cache.<\/p>\n Defaults to 16 Gig, a larger size may improve performance. List any blocks that failed the writeback process.<\/p>\n
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AUTHOR<\/a> <\/p>\n
\nNAME <\/a> <\/h2>\n
SYNOPSIS <\/a> <\/h2>\n
DESCRIPTION <\/a> <\/h2>\n
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–buffer-size-meg {size}<\/b><\/p>\n
–list-failed-blocks<\/b><\/p>\nSEE ALSO <\/a> <\/h2>\n