====== ZFS - Troubleshooting - Transient Errors ====== If an error is not likely to affect the health of the disk in the future, it is considered transient. If the error is likely to effect disk health in the future it can be considered persistent. Transient errors can just be cleared using the following: zpool clear testpool c1t1d0 **NOTE:** This can help to avoid replacing a disk when it is not necessary.