The DTRACE shows the following :-- |The specified Saveset does not exist. [0xc0041aac] so it looks like the actual .DVS isn't there. Do you run Storage Expiry? If so do you also run shortcut deletion (or orhaned shortcuts)?? Doing the delete button...
When an index volume reaches its maximum size, it will rollover and create another volume. When this happens you will see the drop-down box that you mention. The dates shown are the archived dates of the items in the index. There is still only 1 arch...