Seagate ST39103LC Betriebsanweisung PDF herunterladen (Seite 27)

Chapter 3. SVA Path Operation 17

In our example, the following command will show that each

device in Figure 3-4, “Example setsp -a Output in Determining

Load Balancing” is accessible via four paths, using HBAs "glm3",

"glm4", “lpfc0” and “lpfc1”:

# spmon show

Figure 3-5 Example spmon show Output

The column headings describe the various fields on the screen:

• FDev identifies the SVA Path device and the zero-based

index of the FDev within the device, separated by a colon.

• Path identifies the current path assigned to the FDev and the

name of the host bus adapter used by that path.

• I/O Load estimates channel utilization time during the

current measurement interval. The I/O Load may be

expressed as one of the following formats:

milliseconds (with an "ms" suffix) if it is less than one

second. For example, 350ms = 350 milliseconds

# spmon show

Total I/O load across monitored HBAs = 103.2s

HBA Device I/O Load %load

------------------------------

c1 glm3 40.1s 38.8%

c2 glm4 20.8s 20.2%

c4 lpfc0 21.2s 20.6%

c5 lpfc1 21.1s 20.5%

Device c6t0d0 [STK 9500 0000000010850000]

FDev Path I/O Load HBA Load

----------------------------------------------------------

spd0:0 0/glm3/sd66 9.9s 40.1s 24.8%

Device c6t0d1 [STK 9500 0000000010850001]

FDev Path I/O Load HBA Load

----------------------------------------------------------

spd1:0 0/glm3/sd67 10.1s 40.1s 25.1%

spd1:1 3/lpfc1/sd190 21.2s 21.1s 100.0%

Device c6t0d2 [STK 9500 0000000010850002]

FDev Path I/O Load HBA Load

----------------------------------------------------------

spd2:0 0/glm3/sd68 9.9s 40.1s 24.7%

spd2:1 1/glm4/sd90 20.9s 20.8s 100.0%

spd2:2 2/lpfc0/sd147 21.2s 21.2s 100.0%

Device c6t0d3 [STK 9500 0000000010850222]

FDev Path I/O Load HBA Load

----------------------------------------------------------

spd3:0 0/glm3/sd69 10.0s 40.1s 24.9%

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 67 68

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