Wondering if anyone has seen this behaviour and has a explanation (or ideally reference KB or something). In the past couple of years, I have seen a few customers who have EV reporting that the decompressed size of an item is substantially smaller than the compressed size. IIRC it is not uncommon for EV to report double the size of compressed items in a Vault Store than the decompressed size. Some isolated investigation has shown that the EV VSDB is showing the correct data when extracting and looking at the actual items, but we did not dig into why or how this counter-intuitive evidence is the way it is.
Anyone have a great explanation for this?
Just to be clear, I am talking about actual item sizes, not involving storage level compression or SiSing.
TIA for any feedback on this perplexing topic.
Not necessarily a KB but it is commonly known items like .jpg are actually larger in the archive than the original. It was discussed here: https://vox.veritas.com/t5/Enterprise-Vault/ArchiveName-number-of-items-compressed-size-uncompressed... here https://vox.veritas.com/t5/Enterprise-Vault/How-big-is-EV-compression-ratio/td-p/605249
Thanks for the links. This seems to be consistent over all items in scope and is focused on email archived items, so I am not sure this explains the behavior we are seeing....but it may explain some of the behaviour. Thanks again.