Doing some assurance testing in our lab. We have an AFF A700 system.
I do an aggr show command, there is a bunch of aggregate related output. I won't show here as it's a lot.
What I'm concerned with is the "avalable space" field. On our lab unit it has roughly 32TBs of space on the aggregate.
What I'm trying to do is convert the units to Bytes and then divide the number by 4. Then, I use that number ot create 4 identically sized volumes.
When I get to the 4th volume it fails. For some reason it says I need to size my volume 1 TB (approx) smaller than the previous 3.
What's going on here? I get rounding errors and division but this can't be explained by over 1 TB difference. I want to test writing data to all available space. Is this even possible?
How can I guarantee to my customers that when I cryptographically erase their data there is no residual data remaining? If I can't write to all avialalbe space, I don't see how it is provable.