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Setting lunpath failure detection tunables
The mass storage subsystem monitors the I/O error statistics on lunpaths to detect failing lunpaths to LUNs.
If the lunpath continues to see I/O errors with no successful completions for a certain time interval, the SCSI stack takes the broken lunpath offline. This time interval value is defined by the path_fail_secs LUN attribute:
# scsimgr get_attr -D /dev/rdisk/disk17 –a path_fail_secs
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name = path_fail_secs current = 120 default = 120
saved =
You can set this attribute to a different value as follows:
设置这个参数有什么意义和作用吗?如果设置更短时间的话 |
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