PowerFlex：所有與 SDS vmnic 中斷連線的 SDC 都會重設為半雙工並自動交涉。 

Summary: 在此案例中，VxRack-Flex 正在升級其 RCM。

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Symptoms

在此案例中，這是升級至 VxRack Flex 的 RCM。

在升級 VxRack Flex 的 RCM 期間，有一部伺服器的 SDS 和所有 SDC 之間的通訊中斷。

Cause

由於某些原因，vmnic0 上的雙工和速度已重設為半雙工並自動交涉。 

當系統啟動時，Scaleio 嘗試通過此 NIC 驅動 I/O，但一直失敗，因為 Scaleio 嘗試使用全雙工和 10000 速度。

這會導致 Cisco 交換器關閉 vmnic0 所在的連接埠，因為交換器認為連接埠因為網路錯誤而變動。 

以下是vmkernel.log的一些記錄，演示了這種情況引起的撲動： 

2019-05-01T15:46:03.721Z cpu26:86039)netschedHClk: NetSchedHClkWatchdogSysWorld:4552: vmnic0: link up event received, device running at 10000 Mbps so setting queue depth to 86460 bytes with expected 1310 bytes/us
2019-05-01T15:46:04.648Z cpu42:85995)netschedHClk: NetSchedHClkWatchdogSysWorld:4364: vmnic0: hclk scheduler instance clean up
2019-05-01T15:46:04.649Z cpu45:85995)netschedHClk: NetSchedHClkDoFlushQueue:3874: vmnic0: dropping 42 packets from queue netsched.pools.persist.default
2019-05-01T15:46:04.649Z cpu45:85995)netschedHClk: NetSchedHClkDoFlushQueue:3874: vmnic0: dropping 501 packets from queue netsched.pools.vm.67108869
2019-05-01T15:46:04.650Z cpu45:85995)netschedHClk: NetSchedHClkDoFlushQueue:3874: vmnic0: dropping 122 packets from queue netsched.pools.persist.mgmt
2019-05-01T15:46:04.653Z cpu45:85995)netschedHClk: NetSchedHClkWatchdogSysWorld:4475: vmnic0: watchdog world (worldID = 85995) exits
2019-05-01T15:46:07.015Z cpu42:66250)ixgben: ixgben_CheckTxHang:1762: vmnic0: false hang detected on TX queue 0
2019-05-01T15:46:12.017Z cpu42:66250)ixgben: ixgben_CheckTxHang:1762: vmnic0: false hang detected on TX queue 0
2019-05-01T15:46:12.649Z cpu38:65725)ixgben: indrv_UplinkReset:1520: indrv_UplinkReset : vmnic0 device reset started
2019-05-01T15:46:12.649Z cpu38:65725)ixgben: indrv_UplinkQuiesceIo:1483: Stopping I/O on vmnic0
2019-05-01T15:46:12.740Z cpu52:66252)ixgben: ixgben_CheckLink:2514: Link is down for device vmnic0 (0x4307f4af4540)
2019-05-01T15:46:12.740Z cpu52:66252)netschedHClk: NetSchedHClkNotify:2908: vmnic0: link down notification
2019-05-01T15:46:12.740Z cpu52:66252)netschedHClk: NetSchedHClkDoFlushQueue:3874: vmnic0: dropping 211 packets from queue netsched.pools.vm.67108869
2019-05-01T15:46:12.740Z cpu38:65725)ixgben: indrv_DeviceReset:2382: Device Resetting vmnic0
2019-05-01T15:46:12.740Z cpu38:65725)ixgben: indrv_Stop:1950: stopping vmnic0
2019-05-01T15:46:13.013Z cpu38:65725)ixgben: indrv_UplinkStartIo:1460: Starting I/O on vmnic0
2019-05-01T15:46:13.130Z cpu38:65725)ixgben: indrv_UplinkReset:1540: indrv_UplinkReset : vmnic0 device reset completed
2019-05-01T15:46:13.177Z cpu52:66252)ixgben: ixgben_CheckLink:2514: Link is up for device vmnic0 (0x4307f4af4540)
2019-05-01T15:46:13.177Z cpu52:66252)netschedHClk: NetSchedHClkNotify:2900: vmnic0: link up notification
2019-05-01T15:46:13.341Z cpu52:66252)ixgben: ixgben_CheckLink:2514: Link is down for device vmnic0 (0x4307f4af4540)
2019-05-01T15:46:13.341Z cpu52:66252)netschedHClk: NetSchedHClkNotify:2908: vmnic0: link down notification
2019-05-01T15:46:13.348Z cpu52:66252)ixgben: ixgben_CheckLink:2514: Link is up for device vmnic0 (0x4307f4af4540)
2019-05-01T15:46:13.348Z cpu52:66252)netschedHClk: NetSchedHClkNotify:2900: vmnic0: link up notification
2019-05-01T15:46:13.573Z cpu52:66252)ixgben: ixgben_CheckLink:2514: Link is down for device vmnic0 (0x4307f4af4540)
2019-05-01T15:46:13.573Z cpu52:66252)netschedHClk: NetSchedHClkNotify:2908: vmnic0: link down notification

Resolution

1） 在 vmnic 連接埠上設定正確的設定 在此案例中為全雙工且速度為 10000

2） 彈跳 Cisco 交換器上的連接埠：

Putty 到擁有必須退回的埠的思科交換機。

顯示交換器上的所有連接埠：

#show interfaces status

在我們的案例中，我們看到的狀態很糟糕：

Eth1/2/3      316     eth  access down    linkFlapErrDisabled        auto(D) --

現在讓我們反彈埠：

# enable
# configure terminal
(config)# interface Ethernet 1/2/3
(config-subif)# shutdown
(config-subif)# no shutdown
(config-subif)# end

# show interfaces Ethernet 1/2/3 status

連接埠應顯示其已啟用，且 SCALEIO 的問題會在再次開始驅動 I/O 後自行修正。

Affected Products

PowerFlex appliance Intelligent Catalog Software

Products

PowerFlex rack, VxFlex Ready Nodes, PowerFlex Appliance, PowerFlex custom node, PowerFlex appliance R650, PowerFlex appliance R6525, PowerFlex appliance R660, PowerFlex appliance R6625, Powerflex appliance R750, PowerFlex appliance R760 , PowerFlex appliance R7625, PowerFlex custom node, PowerFlex custom node R650, PowerFlex custom node R6525, PowerFlex custom node R660, PowerFlex custom node R6625, PowerFlex custom node R750, PowerFlex custom node R760, PowerFlex custom node R7625, PowerFlex rack connectivity, PowerFlex rack HW, PowerFlex rack RCM Software, PowerFlex Software, VxFlex Product Family, VxFlex Ready Node, VxFlex Ready Node R640, VxFlex Ready Node R740xd, PowerFlex appliance R640, PowerFlex appliance R740XD, PowerFlex appliance R7525, PowerFlex appliance R840, VxFlex Ready Node R840 ...
Article Properties
Article Number: 000055511
Article Type: Solution
Last Modified: 20 Nov 2025
Version:  4
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