Skip to main content
NetApp Knowledge Base

ESX Hosts losing access to LUNs regularly along with Aggregate reporting long CP's

  1. Last updated
  2. Save as PDF
Views:
721
Visibility:
Public
Votes:
1
Category:
ontap-9
Specialty:
san
Last Updated:

Applies to

  • ONTAP 9.x
  • VMware ESXi 6.7 (Update 3)
  • Cisco UCS B200M4/5

Issue

  • VMware critical alert for datastore path down
  • Poor performance and alerts for SQL virtual machines

vmhba0:C0:T66:L43 is down. Affected datastores: Path redundancy to storage device naa.xyz degraded. Path vmhba1:C0:T78:L10 is down. Affected datastores:

wafl_exempt00: wafl.cp.toolong:error]: Aggregate_xyz_sata_aggr1 experienced a long CP.
WARNING: ScsiDeviceIO: 12345: Device naa.123456 performance has deteriorated. I/O latency increased from average value of 8000 microseconds to 1000008 microseconds

 

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.