Dell PowerVault ME4 Series Storage System CLI Guide

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set disk-group


Description	Changes parameters for a specified disk group.
Minimum role	manage
Syntax	set disk-group [adapt-spare-capacity `size` [B\|KB\|MB\|GB\|TB\|KiB\|MiB\|GiB\|TiB]\|default] [name `new-name`] [owner a\|b] [spin-down-delay delay] `disk-group`
Parameters	[adapt-spare-capacity `size` [B\|KB\|MB\|GB\|TB\|KiB\|MiB\|GiB\|TiB]\|default] Optional. For an ADAPT disk group, this specifies the target spare capacity. `size` [B\|KB\|MB\|GB\|TB\|KiB\|MiB\|GiB\|TiB]: Sets the target spare capacity to a specific size. The unit is optional (B represents bytes). If no unit is specified, GiB will be used, regardless of the current base. Whichever unit is set, internally the value will be rounded down to the nearest GiB. If the value is set to 0, the absolute minimum spare space will be used. If this parameter is omitted, the default setting will be used. default: Sets the target spare capacity to the sum of the two largest disks in the disk group, which is sufficient to fully recover fault tolerance after loss of any two disks in the group. name `new-name` Optional. A new name for the disk group. A name that includes a space must be enclosed in double quotes. owner a\|b Optional for a linear disk group. Prohibited for a virtual disk group. Sets the new owner: controller A or B. CAUTION:Before changing the owning controller for a linear disk group, you must stop host I/O to its volumes. Volume mappings are not affected. NOTE:Changing ownership of a disk group while any volumes in the disk group are mapped to live hosts is not supported and may cause data loss or unavailability. All volumes in the disk group must be unmapped or attached hosts must be shut down before the ownership of a disk group is changed. spin-down-delay delay Optional for a linear disk group. Prohibited for a virtual disk group. Not applicable for ADAPT. For spinning disks in a linear disk group, this sets the period of inactivity after which the disks and dedicated spares will automatically spin down. Setting the delay to 1–360 minutes will enable spin down; setting the delay to 0 will disable spin down. NOTE:Drive spin down affects disk operations as follows: Spun-down disks are not polled for SMART events. Operations requiring access to disks may be delayed while the disks are spinning back up. disk-group Name or serial number of the disk group to change. A name that includes a space must be enclosed in double quotes.
Examples	Rename virtual disk group dgA01 to vdg. # set disk-group name vdg dgA01 Rename linear disk group dg1 to dg2 and set its spin-down delay to 10 minutes. # set disk-group name dg2 spin-down-delay 10 dg1
See also	show disk-groups