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+.TH "libnvme" 9 "enum nvme_smart_crit" "January 2023" "API Manual" LINUX
+.SH NAME
+enum nvme_smart_crit \- Critical Warning
+.SH SYNOPSIS
+enum nvme_smart_crit {
+.br
+.BI "    NVME_SMART_CRIT_SPARE"
+, 
+.br
+.br
+.BI "    NVME_SMART_CRIT_TEMPERATURE"
+, 
+.br
+.br
+.BI "    NVME_SMART_CRIT_DEGRADED"
+, 
+.br
+.br
+.BI "    NVME_SMART_CRIT_MEDIA"
+, 
+.br
+.br
+.BI "    NVME_SMART_CRIT_VOLATILE_MEMORY"
+, 
+.br
+.br
+.BI "    NVME_SMART_CRIT_PMR_RO"
+
+};
+.SH Constants
+.IP "NVME_SMART_CRIT_SPARE" 12
+If set, then the available spare capacity has fallen
+below the threshold.
+.IP "NVME_SMART_CRIT_TEMPERATURE" 12
+If set, then a temperature is either greater
+than or equal to an over temperature threshold; or
+less than or equal to an under temperature threshold.
+.IP "NVME_SMART_CRIT_DEGRADED" 12
+If set, then the NVM subsystem reliability has
+been degraded due to significant media related errors
+or any internal error that degrades NVM subsystem
+reliability.
+.IP "NVME_SMART_CRIT_MEDIA" 12
+If set, then all of the media has been placed in read
+only mode. The controller shall not set this bit if
+the read-only condition on the media is a result of
+a change in the write protection state of a namespace.
+.IP "NVME_SMART_CRIT_VOLATILE_MEMORY" 12
+If set, then the volatile memory backup
+device has failed. This field is only valid if the
+controller has a volatile memory backup solution.
+.IP "NVME_SMART_CRIT_PMR_RO" 12
+If set, then the Persistent Memory Region has become
+read-only or unreliable.