The SnapLock Log volume - size guide?

I have been asked to delete files from a SnapLock Enterprise volume using the "snaplock privdel" command.  The documentation for SnapLock states that I first need to create a snaplock Log volume.  However, it does not give any guidelines for what size the volume should be.  What factors should I take into account for the volume size?  Bearing in mind that the volume has to be a SnapLock Compliance volume, I have to get it right first time - so any assistance with determining the appropriate size would be appreciated.

Re: The SnapLock Log volume - size guide?

Does anyone have any guidelines to offer here?