PowerFlex: Alle SDC'er, der blev afbrudt fra SDS vmnic, blev nulstillet til halv duplex og automatisk forhandling. 

Summary: I dette tilfælde havde VxRack-Flex sin RCM opgraderet.

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Symptoms

I dette tilfælde var det en opgradering til VxRack Flexs RCM.

Under opgraderingen af en VxRack Flex RCM mistede en server kommunikationen mellem sit SDS og alle SDC'er.

Cause

Af en eller anden grund blev duplex og hastighed på vmnic0 nulstillet til halv duplex og automatisk forhandling. 

Da systemet blev taget op, forsøgte Scaleio at køre I/O over dette NIC, og det blev ved med at mislykkes, fordi Scaleio forsøgte at bruge fuld duplex og 10000-hastighed.

Dette fik Cisco-switchen til at ned ad porten vmnic0 var tændt, da switchen troede, at porten blafrede på grund af en netværksfejl. 

Her er nogle optegnelser fra vmkernel.log, der viser flapping forårsaget af dette scenario: 

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) Indstil de korrekte indstillinger på vmnic porten I dette tilfælde var det fuld duplex og 10000 hastighed.

2) Bounce porten på Cisco-switchen:

Putty til Cisco-switchen, der ejer den port, der skal afvises.

Vis alle porte på switchen:

#show interfaces status

I vores tilfælde var dette den status, vi så, der var dårlig:

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

Lad os nu hoppe havnen:

# 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

Porten skal vise, at den er aktiveret, og problemet med SCALEIO løser sig selv, når den begynder at køre I/O igen.

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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