Skip to main content
NetApp Knowledge Base

Disks in VMware on Windows disconnects and back ups failing to E-Series

  1. Last updated
  2. Save as PDF
Views:
6
Visibility:
Public
Votes:
0
Category:
e-series-systems
Specialty:
esg
Last Updated:

Applies to

  • NetApp E-Series
  • VMware ESXi
  • Cisco network switches

Issue

  • VMware ESXi host experiencing transient communication issues with E-Series LUNs causing device target resets and back ups to fail.
  • E-Series ASUP reports high count of fibre channel link errors on both controllers in state-capute-data.txt > fcDump

Executing fcDump(0,0,0,0,0,0,0,0,0,0) on controller A:

fcAll (Tick 3126573628) ==> 04/03/25-09:48:25

5700-A           Our  Num  ::...Exchange Counts...:: Num  ..Link Up..
Chip   LinkStat  Port Port ::                     :: Link  Bad  Bad
                  ID  Logi ::Open    Total  Errors:: Down  Char Frame
3-Src Up-Fab  5x0000    7 ::  1   44802101   5924::    0     0     0
4-Src Up-Fab  9x00x0    7 ::  0   44772041   6616::    0     0     4

  • VMware logs reports FC layer aborts without any underlying or associated SCSI errors:

2025-03-12T23:13:25.531Z cpu22:2097812)nfnic: <1>: INFO: fnic_abort_cmd: 3805: Abort cmd called for Tag: 0x1  issued time: 60438 ms CMD_STATE: FNIC_IOREQ_CMD_PENDING CDB Opcode: 0x2a  sc:0x45d97ac00688 flags: 0x3 lun: 3 target: 0x5c0000
2025-03-12T23:13:25.531Z cpu22:2097812)WARNING: nfnic: <1>: fnic_abort_cmd: 3819: Abort for cmd tag: 0x1 in pending state
2025-03-12T23:13:25.531Z cpu22:2097812)nfnic: <1>: INFO: fnic_abort_cmd: 3805: Abort cmd called for Tag: 0x7ef  issued time: 60438 ms CMD_STATE: FNIC_IOREQ_CMD_PENDING CDB Opcode: 0x2a  sc:0x45d941b46008 flags: 0x3 lun: 3 target: 0x5c0000

  • VMware kernel logs report 0x5 and 0x7 status errors:

2025-03-12T23:32:52.456Z cpu105:2098331)NMP: nmp_ThrottleLogForDevice:3867: Cmd 0x88 (0x45d979778a88, 6016532) to dev "naa.6d039ea000ae04ea000001d566c472f5" on path "vmhba1:C0:T7699:L3" Failed:
2025-03-12T23:32:52.456Z cpu105:2098331)ScsiDeviceIO: 4176: Cmd(0x45d979778a88) 0x88, CmdSN 0x8000004a from world 6016532 to dev "naa.6d039ea000ae04ea000001d566c472f5" failed H:0x7 D:0x0 P:0x0

2025-03-12T23:33:53.427Z cpu95:2098331)NMP: nmp_ThrottleLogForDevice:3867: Cmd 0x88 (0x45d9797ca388, 6016532) to dev "naa.6d039ea000ae04ea000001d566c472f5" on path "vmhba1:C0:T7699:L3" Failed:
2025-03-12T23:33:53.427Z cpu95:2098331)ScsiDeviceIO: 4124: Cmd(0x45d9797ca388) 0x88, CmdSN 0x80000007 from world 6016532 to dev "naa.6d039ea000ae04ea000001d566c472f5" failed H:0x5 D:0x0 P:0x0

 

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.