When using Nexenta it is highly recommended to attach the syspool disks via AHCI instead of SATA. Attaching them via SATA might cause I/O errors leading to complete outages. The only way to solve this is to replace the driver with AHCI.
Normally changing the driver for the syspool requires a complete reinstallation. However if you want to avoid this simple follow this guide:
- Boot with Nexenta Setup CD; Choose “Rescue System”
- when booted import the syspool with:
zpool import -f syspool
- Install boot loader on ALL disks belonging to the syspool, e.g. for the first disk:
- Export the syspool:
zpool export syspool
Done. The system now uses AHCI drivers.