Data Movement NDMP bytes transferred tofrom disk
Data Movement: NDMP bytes transferred to/from disk
Data Movement NDMP bytes transferred tofrom tape
Data Movement: NDMP bytes transferred to/from tape
Data Movement Shadow migration bytes
Data Movement: Shadow migration bytes
Data Movement Shadow migration ops
Data Movement: Shadow migration ops
Data Movement Shadow migration requests
Data Movement: Shadow migration requests
Protocol Fibre Channel operations
Protocol: Fibre Channel operations
Protocol: HTTP/WebDAV requests
Data Movement NDMP file system operations
Data Movement: NDMP file system operations
Disk ZFS logical IO operations
Disk: ZFS logical I/O operations
Memory Kernel memory lost to fragmentation
Memory: Kernel memory lost to fragmentation
This statistic shows accesses to the DNLC (Directory Name Lookup Cache). The DNLC caches pathname to inode lookups.
An understanding of operating system internals may be required to properly interpret this statistic.
This may be useful to check if a workload accesses millions of small files, for which the DNLC can help.
If there are generic caching issues on the appliance, first check the Cache: ARC accesses statistic to see how well the ARC is performing, and the Protocol statistics to understand the requested workload. Then, check the Advanced Analytic Cache: ARC size for the size of the ARC.
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