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|Oracle Solaris 11.1 Release Notes Oracle Solaris 11.1 Information Library|
This section describes the performance issues in the Oracle Solaris 11.1 release.
After running the stmsboot command with the -e option to enable the MPXIO (multipathing) feature on the next boot, there is a short duration of time when the ZFS pool device path information becomes stale. As a result, zpool.cache is not updated properly.
Workaround: Choose one of the following workarounds:
Reboot the system immediately after running the stmsboot command with the -e option. Then, reboot the system again.
Run the zpool status command immediately after running the stmsboot command with the -e option, which manually updates zpool.cache.
The performance of an uncached random write workload on a ZFS storage pool of solid-state disks (SSD) that support the SCSI unmap command is very low.
Workaround: In the /etc/system file, add the following line to disable the overhead of ZFS unmap requests: