IBM RELEASE 7.3 - Manual (Page 272)

Less Commonly Used Data Tab
Actual Length. The length of disk virtual volume in bytes. This length includes all of the space set aside
for system use. See Usable Length.
PV Size. The length in bytes of a physical volume in this disk virtual volume. All physical volumes in a
disk virtual volume must be the same length.
Cluster Length. The size of the allocation unit, in bytes. When disk storage segments are created on the
volume, they are created at a length that will be a multiple of this value.
VV Block Size. The virtual volume block size. This is the number of bytes written from a data stream to
an element of the striped volume before the stream switches to the next element of the stripe.
PV Block Size. The size, in bytes, of the media data block.
Creation Time. The date and time the disk volume was created in the Core Server.
VV ID. The detailed description of the disk virtual volume ID associated with this disk virtual volume.
HPSS Management Guide November 2009
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