diff options
| -rw-r--r-- | mdadm.8.in | 25 |
1 files changed, 24 insertions, 1 deletions
@@ -427,12 +427,24 @@ The size can be given as .B max which means to choose the largest size that fits on all current drives. +Before reducing the size of the array (with +.BR "\-\-grow \-\-size=" ) +you should make sure that space isn't needed. If the device holds a +filesystem, you would need to resize the filesystem to use less space. + +After reducing the array size you should check that the data stored in +the device is still available. If the device holds a filesystem, then +an 'fsck' of the filesystem is a minimum requirement. If there are +problems the array can be made bigger again with no loss with another +.B "\-\-grow \-\-size=" +command. + This value can not be used with .B CONTAINER metadata such as DDF and IMSM. .TP -.BR \-Z ", " \-\-array-size= +.BR \-Z ", " \-\-array\-size= This is only meaningful with .B \-\-grow and its effect is not persistent: when the array is stopped and @@ -446,6 +458,17 @@ but setting the size with is, it is required that the array size is reduced as appropriate before the number of devices in the array is reduced. +Before reducing the size of the array you should make sure that space +isn't needed. If the device holds a filesystem, you would need to +resize the filesystem to use less space. + +After reducing the array size you should check that the data stored in +the device is still available. If the device holds a filesystem, then +an 'fsck' of the filesystem is a minimum requirement. If there are +problems the array can be made bigger again with no loss with another +.B "\-\-grow \-\-array\-size=" +command. + A suffix of 'M' or 'G' can be given to indicate Megabytes or Gigabytes respectively. A value of |