Hello,
I built a FreeNAS server (still on FreeNAS-9.10.2-U6) a few years ago using 8 X HGST 4TB drives for serving large media files and and it has been working great. However I have been running low on space recently so I purchased 8 new Seagate 10TB drives to replace the 4TBs and expand the pool volume. I started the process of replacing the first drive, it re-slivered fine but I received this message when checking the zpool status after:
I did some reading and found that the ashift of my pool is 9, meaning it isn't compatible with the new drives 4k block size.
My questions are:
1. What kind of performance decrease would I expect to see with the incompatible block size?
2. Is recreating the pool my only option for using these drives without a performance hit?
3. Can I remove the newly replaced (10TB) drive from the pool to create another pool in a separate chassis?
Thanks
I built a FreeNAS server (still on FreeNAS-9.10.2-U6) a few years ago using 8 X HGST 4TB drives for serving large media files and and it has been working great. However I have been running low on space recently so I purchased 8 new Seagate 10TB drives to replace the 4TBs and expand the pool volume. I started the process of replacing the first drive, it re-slivered fine but I received this message when checking the zpool status after:
pool: Tank
state: ONLINE
status: One or more devices are configured to use a non-native block size.
Expect reduced performance.
action: Replace affected devices with devices that support the
configured block size, or migrate data to a properly configured
pool.
..
gptid/5a41ee69-328e-11ea-a5be-00074307bd22 ONLINE 0 0 0 block size: 512B configured, 4096B native
I did some reading and found that the ashift of my pool is 9, meaning it isn't compatible with the new drives 4k block size.
My questions are:
1. What kind of performance decrease would I expect to see with the incompatible block size?
2. Is recreating the pool my only option for using these drives without a performance hit?
3. Can I remove the newly replaced (10TB) drive from the pool to create another pool in a separate chassis?
Thanks