Expand Configuration and Management Manual (G06.24+)

Tuning
Expand Configuration and Management Manual—523347-008
20-25
Using Measure
NETLINE Din4-Bytes and Dout4-Bytes counters include file-system and message-
system overhead and are measured before data compression. L2in-Bytes and L2out-
Bytes counters represent traffic between the input-output process (IOP) and the driver.
The application Link Complete (LCMP) is included in the U64-Bytes category of the
NETLINE display. Application LCMPs are also shown in the Links Received counter for
the SYSTEM entity. The other NETLINE categories report message frames only.
LINE Entity
The LINE entity accounts for the traffic sent by the Expand line-handler process or the
NAM process to and from the OSI Physical Layer (Layer 1). In the sample display
shown in Example 20-3, the NAM process $X25TAH sent about 1,344 data bytes with
204 bytes of overhead. The Output-Data-Bytes counter and the Input-Data-Bytes
counter show the bytes sent and received by the NAM process or Expand line-handler
process. The Output-Bytes counter shows the data plus the Layer 2 overhead.
(Relevant information is highlighted in boldface type.)
Example 20-2. NETLINE Entity Display
Network Line $B30S Device Type 63 Subdevice Type 5
Logical Device 178 TRACKID SWAN38 Clip 3 Line 0
Local System \TAHITI From 7 Feb 1997, 11:53:37 For 34.7 Seconds
Requests 1.27
Write-Busy-Time 2.21 % Writes 11.97
Read-Busy-Time 98.07 % Reads 9.34
L2in-Bytes 1,204 L2out-Bytes 1,589
Din4-Bytes 773.09 Dout4-Bytes 605.14
Cin4-Bytes 411.55 Cout4-Bytes 359.61
U64-Bytes 4.82 U128-Bytes 2.05
U256-Bytes 0.61 U512-Bytes
U1024-Bytes 0.03 U2048-Bytes 0.23
U4096-Bytes 0.12 O4095-Bytes
Example 20-3. LINE Entity Display
Comm Line $X25TAH Device Type 61 Subdevice Type 63
Logical Device 170 Trackid SWAN24 Clip 2 Line 1
Local System \COWBOY From 7 Feb 1997, 10:23:51 For 44.3 Seconds
Requests 6.03 Retries
Write-busy-Time 1.21 % Writes 11.97
Read-busy-Time 85.52 % Reads 12.08
Input-Bytes 946.94 Output-Bytes 1,548
Input-Data-Bytes 770.93 Output-Data-Bytes 1,344
Transactions Response-Time