跳转到主内容

性能中报告的网络统计信息不正确

Views:
21
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
perf
Last Updated:

适用于

  • ONTAP 9.7
  • ONTAP 9.8
  • QLogic CNA 卡

问题描述

  • 中的网络输出 sysstat -x 1 显示的网络出站吞吐量远低于预期。
    示例:
    • 在读取吞吐量稳定为 500 MB/ 秒的 Filer 上,网络输出仅约为 1 MB/ 秒
  • 使用 QLogic CNA 卡Total bytesBytes/secondifstat -a.
    的物理 NIC 端口在示例:中显示的传输统计信息不准确
    • 接口组a0a 由 4 个物理端口组成— e0c/e0d/e0e/eof在中 ifconfig -a
      a0a: flags=8843 metric 0 mtu 1500
              options=6407bb
              ether 02:a0:98:d2:c5:30
              hwaddr 02:a0:98:d2:c5:30
              pcp 1
              laggproto lacp lagghash l3
              laggport: e0e flags=1c
              laggport: e0f flags=1c
              laggport: e0c flags=1c
              laggport: e0d flags=1c

              groups: lagg
              media: Ethernet autoselect
              status: active
    • 可以从网络层观察到繁重的出站吞吐量,但它仅在 VLAN 中可见a0a-6,不可用于接口组a0a或任何底层物理端口:

-- interface  a0a-6  (0 hours, 1 minute, 23 seconds) --
TRANSMIT
 Total frames:    1630k | Frames/second:   18955  | Total bytes:   46812m
 Bytes/second:    544m | Total errors:     0  | Errors/minute:     0

-- interface  a0a  (0 hours, 1 minute, 23 seconds) --
TRANSMIT
 Total frames:    1630k | Frames/second:   18955  | Total bytes:    106m
 Bytes/second:   1239k | Total errors:     0  | Errors/minute:     0

-- interface  e0c  (0 hours, 1 minute, 23 seconds) --
TRANSMIT
 Total frames:    235k | Frames/second:   2738  | Total bytes:   15361k
 Bytes/second:    178k | Total errors:     0  | Errors/minute:     0

-- interface  e0d  (0 hours, 1 minute, 23 seconds) --
TRANSMIT
 Total frames:   44094  | Frames/second:    513  | Total bytes:    2742k
 Bytes/second:   31895  | Total errors:     0  | Errors/minute:     0

-- interface  e0e  (0 hours, 1 minute, 23 seconds) --
TRANSMIT
 Total frames:    1340k | Frames/second:   15586  | Total bytes:   87814k
 Bytes/second:   1021k | Total errors:     0  | Errors/minute:     0

-- interface  e0f  (0 hours, 1 minute, 23 seconds) --
TRANSMIT
 Total frames:   10853  | Frames/second:    126  | Total bytes:    711k
 Bytes/second:   8273  | Total errors:     0  | Errors/minute:     0

 

注:

  • TRANSMIT Total bytes for interface group a0aTRANSMIT Total bytes 所有中的的总和 底层物理端口
  • 但是 TRANSMIT Total bytes ,对于接口组 a0a ,则要比低很多 TRANSMIT Total bytes 用于 VLAN a0a-6

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.