Lines Matching +full:first +full:- +full:generation

2 dm-zoned
5 The dm-zoned device mapper target exposes a zoned block device (ZBC and
7 pattern constraints. In effect, it implements a drive-managed zoned
10 host-managed zoned block devices and can mitigate the potential
11 device-side performance degradation due to excessive random writes on
12 host-aware zoned block devices.
21 http://www.t13.org/Documents/UploadedDocuments/docs2015/di537r05-Zoned_Device_ATA_Command_Set_ZAC.p…
23 The dm-zoned implementation is simple and minimizes system overhead (CPU
25 host-managed disk with 256 MB zones, dm-zoned memory usage per disk
29 dm-zoned target devices are formatted and checked using the dmzadm
32 https://github.com/hgst/dm-zoned-tools
37 dm-zoned implements an on-disk buffering scheme to handle non-sequential
58 dm-zoned exposes a logical device with a sector size of 4096 bytes,
63 The on-disk metadata format is as follows:
65 1) The first block of the first conventional zone found contains the
120 used as a staging area. Modified metadata is first written to the
122 set, a generation counter is used to indicate that this set contains the
136 start of the zoned block device. This metadata has a generation counter of
138 identification purposes. The first and second copy of the metadata
144 A zoned block device must first be formatted using the dmzadm tool. This
150 	dmzadm --format /dev/sdxx
154 regular block device as the first device.
158 	dmzadm --format /dev/sdxx /dev/sdyy
165 	dmzadm --start /dev/sdxx /dev/sdyy
173 	dmsetup status /dev/dm-X
191 	dmsetup message /dev/dm-X 0 reclaim