Lines Matching +full:use +full:- +full:parity
1 .\" SPDX-License-Identifier: CDDL-1.0
7 .\" You may not use this file except in compliance with the License.
10 .\" or https://opensource.org/licenses/CDDL-1.0.
28 .\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
35 .Nm zpool-attach
51 is a RAID-Z device, or a mirror/plain device.
54 .Pq e.g. specified as Qo Li sda Qc or Qq Li mirror-7 ,
62 automatically transforms into a two-way mirror of
68 is part of a two-way mirror, attaching
70 creates a three-way mirror, and so on.
75 If the existing device is a RAID-Z device
76 .Pq e.g. specified as Qq Ar raidz2-0 ,
77 the new device will become part of that RAID-Z group.
79 the new device will contribute additional space to the RAID-Z group.
81 RAID-Z group, and rewriting it to the new disks in the RAID-Z group (including
89 the health of the RAID-Z vdev is restored (e.g. by replacing the failed disk
92 without data loss (e.g. a RAID-Z2 is still a RAID-Z2 even after expansion).
93 A RAID-Z vdev can be expanded multiple times.
95 After the expansion completes, old blocks retain their old data-to-parity
97 .Pq e.g. 5-wide RAID-Z2 has 3 data and 2 parity
99 New blocks will be written with the new data-to-parity ratio (e.g. a 5-wide
100 RAID-Z2 which has been expanded once to 6-wide, has 4 data and 2 parity).
101 However, the vdev's assumed parity ratio does not change, so slightly less
102 space than is expected may be reported for newly-written blocks, according to
108 A pool-wide scrub is initiated at the end of the expansion in order to verify
110 .Bl -tag -width Ds
112 Forces use of
114 even if it appears to be in use.
136 .Xr zpool-add 8 ,
137 .Xr zpool-detach 8 ,
138 .Xr zpool-import 8 ,
139 .Xr zpool-initialize 8 ,
140 .Xr zpool-online 8 ,
141 .Xr zpool-replace 8 ,
142 .Xr zpool-resilver 8