1xfs_growfs(8) System Manager's Manual xfs_growfs(8)
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7 xfs_growfs - expand an XFS filesystem
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10 xfs_growfs [ -dilnrx ] [ -D size ] [ -e rtextsize ] [ -L size ] [ -m
11 maxpct ] [ -t mtab ] [ -R size ] [ mount-point | block-device ]
12 xfs_growfs -V
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16 xfs_growfs expands an existing XFS filesystem (see xfs(5)). The mount-
17 point argument is the pathname of the directory where the filesystem is
18 mounted. The block-device argument is the device name of a mounted XFS
19 filesystem. The filesystem must be mounted to be grown (see mount(8)).
20 The existing contents of the filesystem are undisturbed, and the added
21 space becomes available for additional file storage.
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24 -d | -D size
25 Specifies that the data section of the filesystem should be re‐
26 sized. If the -D size option is given, the data section is
27 changed to that size, otherwise the data section is grown to the
28 largest size possible with the -d option. The size is expressed
29 in filesystem blocks. A filesystem with only 1 AG cannot be
30 shrunk further, and a filesystem cannot be shrunk to the point
31 where it would only have 1 AG.
32 -e Allows the real-time extent size to be specified. In mkfs.xfs(8)
34 this is specified with -r extsize=nnnn.
35 -i The new log is an internal log (inside the data section).
37 [NOTE: This option is not implemented]
38 -l | -L size
40 Specifies that the log section of the filesystem should be
41 grown, shrunk, or moved. If the -L size option is given, the log
42 section is changed to be that size, if possible. The size is ex‐
43 pressed in filesystem blocks. The size of an internal log must
44 be smaller than the size of an allocation group (this value is
45 printed at mkfs(8) time). If neither -i nor -x is given with -l,
46 the log continues to be internal or external as it was before.
47 [NOTE: These options are not implemented]
48 -m Specify a new value for the maximum percentage of space in the
50 filesystem that can be allocated as inodes. In mkfs.xfs(8) this
51 is specified with -i maxpct=nn.
52 -n Specifies that no change to the filesystem is to be made. The
54 filesystem geometry is printed, and argument checking is per‐
55 formed, but no growth occurs. See output examples below.
56 -r | -R size
58 Specifies that the real-time section of the filesystem should be
59 grown. If the -R size option is given, the real-time section is
60 grown to that size, otherwise the real-time section is grown to
61 the largest size possible with the -r option. The size is ex‐
62 pressed in filesystem blocks. The filesystem does not need to
63 have contained a real-time section before the xfs_growfs opera‐
64 tion.
65 -t Specifies an alternate mount table file (default is /proc/mounts
67 if it exists, else /etc/mtab). This is used when working with
68 filesystems mounted without writing to /etc/mtab file - refer to
69 mount(8) for further details.
70 -V Prints the version number and exits. The mount-point argument is
72 not required with -V.
73 xfs_growfs is most often used in conjunction with logical volumes (see
75 md(4) and lvm(8) on Linux). However, it can also be used on a regular
76 disk partition, for example if a partition has been enlarged while re‐
77 taining the same starting block.
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80 Filesystems normally occupy all of the space on the device where they
81 reside. In order to grow a filesystem, it is necessary to provide added
82 space for it to occupy. Therefore there must be at least one spare new
83 disk partition available. Adding the space is often done through the
84 use of a logical volume manager.
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87 mkfs.xfs(8), xfs_info(8), md(4), lvm(8), mount(8).
88 xfs_growfs(8)