Should I be waiting for the drives to actually fail before replacing or should I just go ahead and replace drive that are looking like they will fail. I have one drive that has high seek errors and the temp sometimes will be above 40 . Today I just notice two other drives that have small amount of seek errors too, although they are low it does worry me that these drive power on hours are high and that three drives could fail killing my pool.
+------+------------------------+----+-----+-----+-----+-------+-------+--------+------+---------+------+-------+----+
|Device|Serial |Temp|Power|Start|Spin |ReAlloc|Current|Offline |Seek |Total |High |Command|Last|
| |Number | |On |Stop |Retry|Sectors|Pending|Uncorrec|Errors|Seeks |Fly |Timeout|Test|
| | | |Hours|Count|Count| |Sectors|Sectors | | |Writes|Count |Age |
+------+------------------------+----+-----+-----+-----+-------+-------+--------+------+---------+------+-------+----+
|da0 ||XXXXXXXX | 35 |39065| 20| 0| 0| 0| 0| 0|363704845| 6| 1| 1|
|da1 ||XXXXXXXX | 36 |38916| 19| 0| 0| 0| 0| 80|340241473| 7| 1| 1|
|da2 ||XXXXXXXX | 35 |38916| 19| 0| 0| 0| 0| 0|370860680| 6| 1| 1|
|da3 ||XXXXXXXX | 33 |38912| 19| 0| 0| 0| 0| 3|352733384| 2| 1| 1|
|da4 | ||XXXXXXXX | 34 |38917| 19| 0| 0| 0| 0| 0|346026463| 7| 1| 1|
|da5 ||XXXXXXXX | 34 |38913| 19| 0| 0| 0| 0| 1|407482324| 4| 1| 1|
|ada0 ?| ||XXXXXXXX | 39 | 105| | | | | | N/A| N/A| N/A| N/A| 4*|
|ada1 ?| ||XXXXXXXX | 39 | 107| | | | | | N/A| N/A| N/A| N/A| 4*|
+------+------------------------+----+-----+-----+-----+-------+-------+--------+------+---------+------+-------+----+
+------+------------------------+----+-----+-----+-----+-------+-------+--------+------+---------+------+-------+----+
|Device|Serial |Temp|Power|Start|Spin |ReAlloc|Current|Offline |Seek |Total |High |Command|Last|
| |Number | |On |Stop |Retry|Sectors|Pending|Uncorrec|Errors|Seeks |Fly |Timeout|Test|
| | | |Hours|Count|Count| |Sectors|Sectors | | |Writes|Count |Age |
+------+------------------------+----+-----+-----+-----+-------+-------+--------+------+---------+------+-------+----+
|da0 ||XXXXXXXX | 35 |39065| 20| 0| 0| 0| 0| 0|363704845| 6| 1| 1|
|da1 ||XXXXXXXX | 36 |38916| 19| 0| 0| 0| 0| 80|340241473| 7| 1| 1|
|da2 ||XXXXXXXX | 35 |38916| 19| 0| 0| 0| 0| 0|370860680| 6| 1| 1|
|da3 ||XXXXXXXX | 33 |38912| 19| 0| 0| 0| 0| 3|352733384| 2| 1| 1|
|da4 | ||XXXXXXXX | 34 |38917| 19| 0| 0| 0| 0| 0|346026463| 7| 1| 1|
|da5 ||XXXXXXXX | 34 |38913| 19| 0| 0| 0| 0| 1|407482324| 4| 1| 1|
|ada0 ?| ||XXXXXXXX | 39 | 105| | | | | | N/A| N/A| N/A| N/A| 4*|
|ada1 ?| ||XXXXXXXX | 39 | 107| | | | | | N/A| N/A| N/A| N/A| 4*|
+------+------------------------+----+-----+-----+-----+-------+-------+--------+------+---------+------+-------+----+