EDIT: I was totally, completely wrong in my diagnosis of the problem. See post #2 for what really happened.
I've been slowly investigating some performance issues on my system, as triggered by a resilver operation that took over 4 days to complete.
The vdev is composed of six Seagate ST3000DM001 (3TB SATA) drives in RAIDZ2. They are all connected to motherboard SATA ports on an ASUS M5A78L-M LX+ board.
As part of my investigation, I started a scrub and pulled up gstat. Clearly, two...
AHCI vs. IDE mismatch (was Mixing 4Kb and 512b sector sizes in a vdev?)
I've been slowly investigating some performance issues on my system, as triggered by a resilver operation that took over 4 days to complete.
The vdev is composed of six Seagate ST3000DM001 (3TB SATA) drives in RAIDZ2. They are all connected to motherboard SATA ports on an ASUS M5A78L-M LX+ board.
As part of my investigation, I started a scrub and pulled up gstat. Clearly, two...
AHCI vs. IDE mismatch (was Mixing 4Kb and 512b sector sizes in a vdev?)