SYNOPSIS
/etc/writeboosttabDESCRIPTION
The file writeboosttab contains information about mappings between caching and cached block devices for writeboost utility.Each mapping is described on a separate line; Empty lines and lines starting with '#' are ignored; Fields on each line are separated by tabs or spaces;
The first field (dm_name)
-
This field describes the name of device-mapepr block device that will be
created as result of mapping.
Typically after successful mapping the dm_name will appear in the /dev/mapper folder.
The second field (hdd_device)
- This field describes path to the cached block device, typically "slow" (rotational) HDD.
The third field (ssd_device).
- This field describes path to the caching block device, typically "fast" SSD.
The forth field (options)
- This optional field describes comma-separated list of options passed to dm-writeboost.
It is recommended to use reliable paths to block devices like /dev/disk/by-uuid/{UUID} or similar.
EXAMPLES
The following is an example of an entry in the /etc/writeboosttab file:
-
cached_hdd /dev/disk/by-uuid/2e8260bc-024c-4252-a695-a73898c974c7 /dev/disk/by-partuuid/43372b68-3407-45fa-9b2f-61afe9c26a68 writeback_threshold=70,sync_data_interval=3600
FILES
/etc/writeboosttabLICENSE
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This package is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.