Skip to main content
NetApp Knowledge Base

Storage efficiency never completes and restarts with the "sis.chkpoint.restore.failed" error

Last Updated:

Applies to

  • ONTAP 9
  • Storage efficiency (deduplication)
  • SnapMirror or SnapVault


The efficiency operation fails to restore from the last checkpoint after a SnapMirror or SnapVault update has stopped it. This causes the operation to restart from the beginning continuously. 

  • EMS log:

Fri Oct 08 03:00:42 +0000 [cluster-02: f: sis.chkpoint.restore.failed:error]: SIS operation on the volume '/vol/vol1@vserver:5ee40c5d-0f0e-11eb-a2a6-d039ea20e14f' failed to restore from a previous checkpoint. Starting SIS operation from the beginning.

  • SIS-log:

Fri Oct 8 03:00:16 UTC 2021 [Vserver UUID: 5ee40c5d-0f0e-11eb-a2a6-d039ea20e14f] /vol/vol1 [sid: 0] Error (Operation was stopped )
Fri Oct 8 03:00:42 UTC 2021 [Vserver UUID: 5ee40c5d-0f0e-11eb-a2a6-d039ea20e14f] /vol/vol1 [sid: 0] Info (sis start vault)
Fri Oct 8 03:00:42 UTC 2021 [Vserver UUID: 5ee40c5d-0f0e-11eb-a2a6-d039ea20e14f] /vol/vol1 [sid: 1633661733] Warning (Unable to restore the checkpoint from stage: Sorting with err: 61)

  • SKtrace:

2021-10-08T03:00:42Z 45712550547106644 [11:0] DENSE_DEBUG: dense_bktsort_checkpoint_valid: CHK_PT restore : i [40] hdr seg count[39]
2021-10-08T03:00:42Z 45712550598590700 [2:0] DENSE_DEBUG: dense_restore_prev_checkpoint: Failed with err:[61] to restore checkpoint at stage :[8]





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.