Skip to main content
NetApp Stage KB

ATTO 7500 bridge reboots with "HW Code: L4 Watchdog 0 Warm"

Last Updated:


Applies to

  • MetroCluster
  • ATTO FibreBridge 7500
  • ATTO firmware 4.25
  • ATTO bridges secured and using in-band management


An ATTO FibreBridge 7500 reboots with the following error:
058FBD 00:00:05 01/01/00 INFO Reset.  HW Code: Software Warm
058FBE 00:00:05 01/01/00 INFO Reset.  HW Code: L4 Watchdog 0 Warm
058FBF 00:00:05 01/01/00 INFO Reset.  HW Code: FPGA handshake Timeout
058FC0 00:00:05 01/01/00 INFO Reset.  Reason: Unhandled HW Watchdog Interrupt
058FC1 23:08:15 06/04/22 SYS  System date has changed. Current date:[06/04/2022]

0590EA 23:16:26 06/04/22 WARN ECC Single-bit error detected. Addr:039de88c STS:0d
0590EB 23:16:51 06/04/22 CRIT ECC Multi-bit error detected. Addr:03a8fd98 STS:09

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.