Lines Matching +full:resume +full:- +full:offset
2 dm-raid
5 The device-mapper RAID (dm-raid) target provides a bridge from DM to MD.
6 It allows the MD RAID drivers to be accessed using a device-mapper
11 -----------------------
26 - Transitory layout
29 - rotating parity 0 with data continuation
32 - rotating parity N with data continuation
35 - rotating parity 0 with data restart
38 - rotating parity N with data restart
41 - rotating parity zero (left-to-right) with data restart
44 - rotating parity N (right-to-left) with data restart
47 - rotating parity N (right-to-left) with data continuation
50 - parity and Q-syndrome on the last 2 disks;
52 raid6_la_6 Same as "raid_la" plus dedicated last Q-syndrome disk
54 - layout for takeover from raid5_la from/to raid6
55 raid6_ra_6 Same as "raid5_ra" dedicated last Q-syndrome disk
57 - layout for takeover from raid5_ra from/to raid6
58 raid6_ls_6 Same as "raid5_ls" dedicated last Q-syndrome disk
60 - layout for takeover from raid5_ls from/to raid6
61 raid6_rs_6 Same as "raid5_rs" dedicated last Q-syndrome disk
63 - layout for takeover from raid5_rs from/to raid6
67 - RAID10: Striped Mirrors (aka 'Striping on top of mirrors')
68 - RAID1E: Integrated Adjacent Stripe Mirroring
69 - RAID1E: Integrated Offset Stripe Mirroring
70 - and other similar RAID10 variants
103 Mark drive index 'idx' write-mostly.
105 See '--write-behind=' (man mdadm)
113 [raid10_copies <# copies>], [raid10_format <near|far|offset>]
117 variations to how the copies are laid down - the default
133 The 2-device layout is equivalent 2-way RAID1. The 4-device
135 3-device layout is what might be called a 'RAID1E - Integrated
154 If 'raid10_copies 2' and 'raid10_format offset', then the
169 Here we see layouts closely akin to 'RAID1E - Integrated
170 Offset Stripe Mirroring'.
173 The delta_disks option value (-251 < N < +251) triggers
184 This option value defines the offset into each data device
185 where the data starts. This is used to provide out-of-place
190 forward reshaping, the out-of-place space will be allocated
195 number of stripes, calculate the redundancy blocks (CRC/Q-syndrome)
196 and write that new stripe to offset 0. Same will be applied to all
197 N-1 other new stripes. This out-of-place scheme is used to change
203 uses it to close the 'write hole' caused by the non-atomic updates
206 be throttled versus non-journaled raid4/5/6 sets.
224 If a drive has failed or is missing at creation time, a '-' can be
229 --------------
233 # RAID4 - 4 data drives, 1 parity (no metadata devices)
240 5 - 8:17 - 8:33 - 8:49 - 8:65 - 8:81
242 # RAID4 - 4 data drives, 1 parity (with metadata devices)
252 -------------
268 Line 1 is the standard output produced by device-mapper.
274 Here we can see the RAID type is raid4, there are 5 devices - all of
282 - 'A' = alive and in-sync
283 - 'a' = alive but not in-sync
284 - 'D' = dead/failed.
292 - No synchronization action is being performed.
294 - The current action has been halted.
296 - Array is undergoing its initial synchronization
300 - A device in the array is being rebuilt or
303 - A user-initiated full check of the array is
310 - The same as "check", but discrepancies are
313 - The array is undergoing a reshape.
318 <data_offset> The current data offset to the start of the user data on
320 raid parameter to support out-of-place reshaping).
321 <journal_char> - 'A' - active write-through journal device.
322 - 'a' - active write-back journal device.
323 - 'D' - dead journal device.
324 - '-' - no journal device.
329 -----------------
330 The dm-raid target will accept certain actions through the 'message' interface.
345 ---------------
363 discard support is disabled -- this ensures data integrity at the
369 For trusted devices, the following dm-raid module parameter can be set
376 ---------------
386 1.4.0 Non-functional change. Removes arg from mapping function.
388 1.4.2 Add RAID10 "far" and "offset" algorithm support.
391 1.5.1 Add ability to restore transiently failed devices on resume.
402 1.9.2 Don't emit '- -' on the status table line in case the constructor
404 'D' on the status line. If '- -' is passed into the constructor, emit
405 '- -' on the table line and '-' as the status line health character.
410 1.11.1 Add raid4/5/6 journal write-back support via journal_mode option