jakubjb
Dabbler
- Joined
- Feb 9, 2017
- Messages
- 29
Hi
On FreeNAS 9.3-STABLE we had an issue with zvol taking much more space then it was logically used on it. As we realized, the reason was in setting volblock size to 4K. After creating new zvol with volblocksize=recordsize=128K and copying all data to it, problem disappeared.
Now I need to replicate this zvol to another FreeNAS server (9.10.2-U1).
I'm in the middle of replication and I've just found out that the destination zvol has volblocksize of 8K, which is this version's default, I guess. It now behaves ok in terms of space usage/allocation.
Question is: why is volblocksize changed? I could swear that was not the case, when I replicated between two 9.3-STABLE servers.
On FreeNAS 9.3-STABLE we had an issue with zvol taking much more space then it was logically used on it. As we realized, the reason was in setting volblock size to 4K. After creating new zvol with volblocksize=recordsize=128K and copying all data to it, problem disappeared.
Now I need to replicate this zvol to another FreeNAS server (9.10.2-U1).
I'm in the middle of replication and I've just found out that the destination zvol has volblocksize of 8K, which is this version's default, I guess. It now behaves ok in terms of space usage/allocation.
Question is: why is volblocksize changed? I could swear that was not the case, when I replicated between two 9.3-STABLE servers.