- Fully support --grow for raid6. If a reshape crashed during the
critical period, mdadm wouldn't restore the Q information
properly.
+ - Update documentation for --grow.
Changes Prior to 2.6 release
- Fixed UUID printing in "--detail --brief" for version1 metadata.
"\n"
"This usage causes mdadm to attempt to reconfigure a running array.\n"
"This is only possibly if the kernel being used supports a particular\n"
-"reconfiguration. This version only supports changing the number of\n"
-"devices in a RAID1, and changing the active size of all devices in\n"
-"a RAID1/4/5/6.\n"
+"reconfiguration. This version supports changing the number of\n"
+"devices in a RAID1/5/6, changing the active size of all devices in\n"
+"a RAID1/4/5/6, adding or removing a write-intent bitmap, and changing\n"
+"the error mode for a 'FAULTY' array.\n"
"\n"
"Options that are valid with the grow (-G --grow) mode are:\n"
+" --level= -l : Tell mdadm what level the array is so that it can\n"
+" : interpret '--layout' properly.\n"
+" --layout= -p : For a FAULTY array, set/change the error mode.\n"
" --size= -z : Change the active size of devices in an array.\n"
" : This is useful if all devices have been replaced\n"
" : with larger devices.\n"
-" --raid-disks= -n : Change the number of active devices in a RAID1\n"
+" --raid-disks= -n : Change the number of active devices in an array.\n"
" : array.\n"
+" --bitmap= -b : Add or remove a write-intent bitmap.\n"
;
char Help_incr[] =
Grow (or shrink) an array, or otherwise reshape it in some way.
Currently supported growth options including changing the active size
of component devices in RAID level 1/4/5/6 and changing the number of
-active devices in RAID1.
+active devices in RAID1/5/6.
.TP
.B "Incremental Assembly"
.br
This number can only be changed using
.B --grow
-for RAID1 arrays, and only on kernels which provide necessary support.
+for RAID1, RAID5 and RAID6 arrays, and only on kernels which provide
+necessary support.
.TP
.BR -x ", " --spare-devices=
change the "size" attribute
for RAID1, RAID5 and RAID6.
.IP \(bu 4
-increase the "raid-disks" attribute of RAID1 and RAID5.
+increase the "raid-disks" attribute of RAID1, RAID5, and RAID6.
.IP \(bu 4
add a write-intent bitmap to any array which support these bitmaps, or
remove a write-intent bitmap from such an array.