From e1f4fc22d215ed557262a948877c8914a7b94ad1 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Tue, 6 Sep 2016 15:13:59 -0500 Subject: [PATCH] man lvmraid: comment out unfinished features --- man/lvmraid.7.in | 42 ++++++++++++++++++++++++++---------------- 1 file changed, 26 insertions(+), 16 deletions(-) diff --git a/man/lvmraid.7.in b/man/lvmraid.7.in index 5c49def1f..b9ad255ee 100644 --- a/man/lvmraid.7.in +++ b/man/lvmraid.7.in @@ -906,7 +906,21 @@ between striped and raid4. [lv_rmeta_1] linear 3.00m .fi -3. Converting an LV from \fBstriped\fP (with 4 stripes) to \fBraid6_nc\fP. +3. Converting an LV from \fBlinear\fP to \fBraid1\fP (with 3 images). + +.nf +Start with a linear LV: + +# lvcreate -L1G -n my_lv vg + +Convert the linear LV to raid1 with three images +(original linear image plus 2 mirror images): + +# lvconvert --type raid1 --mirrors 2 vg/my_lv +.fi + +.ig +4. Converting an LV from \fBstriped\fP (with 4 stripes) to \fBraid6_nc\fP. .nf Start with a striped LV: @@ -940,19 +954,7 @@ existing stripe devices. It then creates 2 additional MetaLV/DataLV pairs If rotating data/parity is required, such as with raid6_nr, it must be done by reshaping (see below). - -4. Converting an LV from \fBlinear\fP to \fBraid1\fP (with 3 images). - -.nf -Start with a linear LV: - -# lvcreate -L1G -n my_lv vg - -Convert the linear LV to raid1 with three images -(original linear image plus 2 mirror images): - -# lvconvert --type raid1 --mirrors 2 vg/my_lv -.fi +.. .SH RAID Reshaping @@ -973,6 +975,9 @@ partially updated and corrupted. Instead, an existing stripe is quiesced, read, changed in layout, and the new stripe written to free space. Once that is done, the new stripe is unquiesced and used.) +(The reshaping features are planned for a future release.) + +.ig .SS Examples 1. Converting raid6_n_6 to raid6_nr with rotating data/parity. @@ -1052,7 +1057,7 @@ FIXME: include -o devices or seg_pe_ranges above also? All segments with PE ranges '33-33' provide the out-of-place reshape space. The dataoffset column shows that the data was moved from initial offset 0 to 2048 sectors on each component DataLV. - +.. .SH RAID5 Variants @@ -1088,6 +1093,7 @@ RAID5 right asymmetric \[bu] Rotating parity 0 with data continuation +.ig raid5_n .br \[bu] @@ -1099,6 +1105,7 @@ Same layout as raid4 with a dedicated parity N with striped data. \[bu] Used for .B RAID Takeover +.. .SH RAID6 Variants @@ -1137,6 +1144,7 @@ RAID6 N continue \[bu] Rotating parity N with data continuation +.ig raid6_n_6 .br \[bu] @@ -1196,9 +1204,10 @@ Same as raid5_ra for N-1 disks with fixed Q-Syndrome N \[bu] Used for .B RAID Takeover +.. - +.ig .SH RAID Duplication RAID LV conversion (takeover or reshaping) can be done out\-of\-place by @@ -1294,6 +1303,7 @@ FIXME: include how splitmirrors can be used. .SH RAID1E TODO +.. .SH History