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GROW-DISK |
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^^^^^^^^^ |
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| **grow-disk** [\--no-wait-for-sync] [\--submit] {*instance*} {*disk*}
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| {*amount*}
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| **grow-disk** [\--no-wait-for-sync] [\--submit] [\--absolute]
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| {*instance*} {*disk*} {*amount*}
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Grows an instance's disk. This is only possible for instances having a |
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plain, drbd or rbd disk template. |
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the partition table on the disk |
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The *disk* argument is the index of the instance disk to grow. The |
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*amount* argument is given either as a number (and it represents the |
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amount to increase the disk with in mebibytes) or can be given similar |
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to the arguments in the create instance operation, with a suffix |
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denoting the unit. |
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*amount* argument is given as a number which can have a suffix (like the |
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disk size in instance create); if the suffix is missing, the value will |
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be interpreted as mebibytes. |
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By default, the *amount* value represents the desired increase in the |
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disk size (e.g. an amount of 1G will take a disk of size 3G to 4G). If |
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the optional ``--absolute`` parameter is passed, then the *amount* |
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argument doesn't represent the delta, but instead the desired final disk |
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size (e.g. an amount of 8G will take a disk of size 4G to 8G). |
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For instances with a drbd template, note that the disk grow operation |
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might complete on one node but fail on the other; this will leave the |
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# gnt-instance grow-disk instance1.example.com 0 16g |
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Example for increasing the disk size to a certain size:: |
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# gnt-instance grow-disk --absolute instance1.example.com 0 32g |
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Also note that disk shrinking is not supported; use **gnt-backup |
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export** and then **gnt-backup import** to reduce the disk size of an |
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