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Sun ZFS Storage 7000 System Administration Guide |
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 measures network device activity in bytes/sec. Network devices are the physical network ports, and are shown in the Device column of Network. The measured bytes by this stastistic includes all network payload headers (Ethernet, IP, TCP, NFS/SMB/etc.)
Network bytes can be used a rough measure of appliance load. It should also be checked whenever performance issues are investigated, especially for 1 Gbit/sec interfaces, in case the bottleneck is the network device. The maximum practical throughput for network devices in each direction (in or out) based on speed:
1 Gbit/sec Ethernet: ~120 Mbytes/sec device bytes
10 Gbit/sec Ethernet: ~1.16 Gbytes/sec device bytes
If a network device shows a higher rate than these, use the direction breakdown to see the inbound and outbound components.
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Also see Network: Interface bytes for network throughput at the interface level, instead of the device level.
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