Skip to main content
NetApp Knowledge Base

MLAG on Mellanox switch reports Failed to grow the pool size err -12

Last Updated:

Applies to

  • Mellanox SN2010
  • ONYX 3.8.2008 and lower
  • MLAG enabled


  • When changing IP addresses, the new address becomes intermittently unavailable
  • Some virtual machines(VMs) are not able to be pinged or reached from devices within same LAN or connect to external network.
  • When these occurs, there may be associated errors in the switch logs (as generated by sysdump) along these lines:

HCI-MLX2 mlagd[4799]: TID 140503404242688: [mlagd.NOTICE]: [MLAG_MAC_SYNC_PEER_MANAGER.NOTICE] Need to mark the MACs as DENY, cnt:0 < record_num:67

HCI-MLX2 mlagd[4799]: TID 140503404242688: [mlagd.NOTICE]: [MLAG_MAC_SYNC_PEER_MANAGER.NOTICE] Failed to grow the pool size, err -12


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.