On Tue, 27 Apr 2021, Kent Watsen wrote:
- “tank" is a raidz2 made up of spinning rust. - I want to add a ZIL/Slog comprised of SSDs (INTEL 3700s) - Being SSDs, "autotrim=on” should be set (right?)
It seems to me that the ZIL is not like a filesystem (where data is continually allocated and freed) and it should be expected to appear to write to the same regions over and over. The FLASH should do wear-leveling as erase areas start to wear out due to the number of writes.
Doing a trim of the ZIL might be counter-productive. Doing a trim of normal pool disks makes a lot more sense.
Bob -- Bob Friesenhahn [email protected], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt ------------------------------------------ illumos: illumos-discuss Permalink: https://illumos.topicbox.com/groups/discuss/T6ef0a71646a80e63-Mc53a43d6694109ebc6b05c97 Delivery options: https://illumos.topicbox.com/groups/discuss/subscription
