diff options
Diffstat (limited to 'bcache.8')
| -rw-r--r-- | bcache.8 | 74 |
1 files changed, 38 insertions, 36 deletions
@@ -1,9 +1,9 @@ -.TH bcacheadm 8 +.TH bcache 8 .SH NAME -bcacheadm \- manage bcache devices +bcache \- manage bcache filesystems/devices .SH SYNOPSIS -.B bcacheadm +.B bcache [\fIoptions\fR] .B COMMAND [\fIoptions\fR] @@ -51,61 +51,63 @@ to create the /dev/disk/by-uuid symlink. .BR help .RS -List the bcacheadm commands +List the bcache commands .RE .SH OPTIONS -.SH Options for bcacheadm +.SH Options for bcache .TP .BR \--help .SH Options for format +.SH Global options: .TP -.BR \-C -Create a cache +.BR \-w,\ --block= +block size, in bytes (e.g. 4k) .TP -.BR \-B -Create a backing device +.BR \-w,\ --btree_node_size= +btree node size in bytes - default 256k .TP -.BR \-b\ --bucket-size= -Specifies the bucket size. +.BR \--metadata_checksum_type=TYPE .TP -.BR \-l\ --label= -label +.BR \--data_checksum_type=TYPE +where TYPE is one of none, crc32c (default), or crc64 .TP -.BR \-w,\ --block= -block size (hard sector size of SSD, often 2k +.BR \--compression_type=TYPE +where TYPE is one of none (default), lz4 or gzip .TP -.BR \-t,\ --tier= -tier of subsequent devices +.BR \--encrypted +Enable encryption; passphrase will be prompted for .TP -.BR \--cache-replacement-policy= -one of lru, fifo, or random +.BR \--error_action=TYPE +where TYPE is one of continue, readonly (default) or panic .TP -.BR \-o,\ --data_offset= -data offset in sectors +.BR \-l\ --label=LABEL +Create the filesystem with the specified label .TP -.BR \--cset-uuid= -Create a cache device with the specified UUID +.BR \--uuid=UUID +Create the filesystem with the specified UUID .TP -.BR \--csum_type= -One of none, csc32c, or csc64 +.BR \--force +Force the filesystem to be created, even if the device already contains a +filesystem + +.SH Options that apply to subsequent devices: .TP -.BR \--meta-replicas= -Number of metadata replicas +.BR \--fs_size=SIZE +Create the filesystem using SIZE bytes on the subsequent device .TP -.BR \--data-replicas= -Number of data replicas +.BR \-b\ --bucket-size=SIZE +Specifies the bucket size - must be greater than the btree node size .TP -.BR \--wipe-bcache -Destroy existing bcache data if present +.BR \-t,\ --tier=INDEX +Specifies the tier of subsequent devices, where INDEX is a small integer and a +smaller index indicates a faster tier - tier 0 being the fastest. Currently only +two tiers are supported. .TP .BR \--discard -Enable discards -.TP -.BR \--writeback -Enable writeback +Enable discards on subsequent devices .SH Options for register @@ -117,7 +119,7 @@ Provide a directory other than /sys/fs/bcache .SH Options for query-devs .TP .BR \-f,\ --force-csum -Enables bcacheadm to going even if the superblock crc is invalid +Enables bcache to going even if the superblock crc is invalid .SH Options for status |