remonv76
Dabbler
- Joined
- Dec 27, 2014
- Messages
- 49
Hi there,
I have a question. I have a small iscsi zvol using compression. The zvol is exported as a datastore to my VMWare infra. The question i have is about the free space.
The compression ratio freenas accomplishes is 2.11x, which is great. But the free space in VMWare is not the same as in freenas.
For instance: I have a zpool of 4TB and a zvol which is 80% of 4TB = around 3TB.
My data is 2.4TB and with a compression ratio of, say 2.00x, you get 1.2TB of used space.
But VMWare only sees 2.4TB and sais i have 600GB of free space. But actually it should be 1.8TB. (3TB-1.2TB)
So what will happen if my data exceeds the 3TB, which is actually 1.5TB with compression?
I know VMWare will alert me every day that my datastore is full, which isn't actually right.
I have a question. I have a small iscsi zvol using compression. The zvol is exported as a datastore to my VMWare infra. The question i have is about the free space.
The compression ratio freenas accomplishes is 2.11x, which is great. But the free space in VMWare is not the same as in freenas.
For instance: I have a zpool of 4TB and a zvol which is 80% of 4TB = around 3TB.
My data is 2.4TB and with a compression ratio of, say 2.00x, you get 1.2TB of used space.
But VMWare only sees 2.4TB and sais i have 600GB of free space. But actually it should be 1.8TB. (3TB-1.2TB)
So what will happen if my data exceeds the 3TB, which is actually 1.5TB with compression?
I know VMWare will alert me every day that my datastore is full, which isn't actually right.