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Object alignment during volume creation

For CDS disk groups, VxVM objects that are used in volume creation are automatically aligned to 8K. For non-CDS disk groups, the vxassist attribute, dgalign_checking, controls how the command handles attributes that are subject to disk group alignment restrictions. If set to strict, the volume length and values of attributes must be integer multiples of the disk group alignment value, or the command fails and an error message is displayed. If set to round (default), attribute values are rounded up as required. If this attribute is not specified on the command-line or in a defaults file, the default value of round is used.

The diskalign and nodiskalign attributes of vxassist, which control whether subdisks are aligned on cylinder boundaries, is honored only for non-CDS disk groups whose alignment value is set to 1.