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由于增量总线溢出和丢弃计数、NFS访问速度较慢

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ontap-9
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nas<a>2009076138</a><a>总线溢出</a><a>NFS速度缓慢</a>
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适用场景

  • ONTAP 9
  • NFS

问题描述

  • NFS客户端访问导出卷的速度非常慢。
  • 将数据接口移至配对节点后、速度将消失
  • ifstat 显示端口上的大量总线溢出和丢弃计数
 -- interface e0c (339 days, 13 hours, 40 minutes, 23 seconds) -- RECEIVE Total frames: 120g | Frames/second: 4124 | Total bytes: 365t Bytes/second: 12450k | Total errors: 2 | Errors/minute: 0 Total discards: 21080k | Discards/minute: 43 | Multi/broadcast: 23896k Non-primary u/c: 0 | CRC errors: 0 | Runt frames: 0 Fragment: 0 | Long frames: 0 | Jabber: 2 Length errors: 0 | No buffer: 0 | Xon: 0 Xoff: 0 | Pause: 0 | Jumbo: 42929m Noproto: 0 | Error symbol: 27 | Illegal symbol: 1 Bus overruns: 21080k | Queue drops: 0 | LRO segments: 60391m LRO bytes: 360t | LRO6 segments: 0 | LRO6 bytes: 0 Bad UDP cksum: 0 | Bad UDP6 cksum: 0 | Bad TCP cksum: 0 Bad TCP6 cksum: 0 | Mcast v6 solicit: 1 | Lagg errors: 0 Lacp errors: 0 | Lacp PDU errors: 0 TRANSMIT Total frames: 127g | Frames/second: 4337 | Total bytes: 745t Bytes/second: 25411k | Total errors: 0 | Errors/minute: 0 Total discards: 0 | Queue overflow: 0 | Multi/broadcast: 1568k Collisions: 0 | Xon: 0 | Xoff: 0 Pause: 0 | Jumbo: 44549m | Cfg Up to Downs: 4 TSO non-TCP drop: 0 | Split hdr drop: 0 | Timeout: 0 TSO segments: 17931m | TSO bytes: 555t | TSO6 segments: 0 TSO6 bytes: 0 | HW UDP cksums: 12 | HW UDP6 cksums: 0 HW TCP cksums: 69589m | HW TCP6 cksums: 0 | Mcast v6 solicit: 0 Lagg drops: 0 | Lagg no buffer: 0 | Lagg no entries: 0 DEVICE Mcast addresses: 3 | Rx MBuf Sz: 4096 LINK INFO Speed: 10000M | Duplex: full | Flowcontrol: none Media state: active | Up to downs: 8

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