Hello all.
I have an EV 9.05 environment currently only using the mailbox archiving feature. Backend storage is good old fashion NTFS partition (sas disk). About 75TB+ of archive data. And the retention is set to retain items forever. Users do have access to delete from the vault. Users utilize vault cache/virtual vault.
We recently introduced a hitachi HCP worm device. Shortly after users started to notice that they can no longer delete items from the vault. if they delete an item from Vault cache the next time the Vault cache syncs the item reappears. if they delete it from archive explorer they get a "The deletion of the item is not currently permitted".
Reference - https://www-secure.symantec.com/connect/forums/ev-905-deletion-item-not-currently-permitted
We found out the problem is the HCP device does not allow a user to delete items from the vault if the item has a current retention on it. (from hitachi support)
We need to allow users to delete from the vault as it was working prior to the Hitachi HCP worm device installation. it has been suggested (from hitachi support) to change the EV retention from the current setting of "forever" to 1 day. Hitachi would then pickup the retention change and any items that have expired the user would be then free to delete the item from virtual vault or archive explorer.
Question is as follows...
Knowing we want to keep items forever if we set the retention from "forever" to "1" day and never run storage expiry, what are the ramifications of this change from a performance perspective on EV and SQL, DA, EV indexes, etc. I am trying to think of gotchas, etc. I realize the data would not be deleted until storage expiry runs, but having almost 100% of the EV data marked as expired does that have any drawbacks from any other processes?
Thanks in advance.