Search

How to fix a mirror degraded system
https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/How_to_fix_a_mirror_degraded_system
Applies to MetroCluster ONTAP 9 ONTAP 8 SyncMirror degraded Description Mirror degraded indicates that an aggregate that was configured as a mirrored aggregate is not mirrored any more. This article d...Applies to MetroCluster ONTAP 9 ONTAP 8 SyncMirror degraded Description Mirror degraded indicates that an aggregate that was configured as a mirrored aggregate is not mirrored any more. This article describes the procedure to be followed to fix a mirror degraded system.
How to monitor Aggregate Space when a SyncMirror is not updating
https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/How_to_monitor_Aggregate_Space_when_a_SyncMirror_is_not_updating
A mirrored aggregate can run out of space if the SyncMirror is in a degraded state and the aggregate is near capacity. RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --...A mirrored aggregate can run out of space if the SyncMirror is in a degraded state and the aggregate is near capacity. RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- dparity FAILED N/A 3807816/ - parity FAILED N/A 3807816/ - data FAILED N/A 3807816/ - Raid group is missing 3 disks.
How to convert mirrored aggregate to a common aggregate?
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_convert_mirrored_aggregate_to_a_common_aggregate
Applies to SyncMirror MetroCluster Description This article describes how to convert mirrored aggregate to a common aggregate when it is no longer needed.
SnapMirror Snapshots are not deleted on SnapMirror Synchronous source volume
https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/SnapMirror_Snapshots_are_not_deleted_on_SnapMirror_Synchronous_source_volume
Applies to ONTAP 9.5+ SnapMirror Synchronous Issue The SnapMirror Synchronous snapshots are not deleted on the source SnapMirror Synchronous updates with no issues, snapshots are rotated on destinatio...Applies to ONTAP 9.5+ SnapMirror Synchronous Issue The SnapMirror Synchronous snapshots are not deleted on the source SnapMirror Synchronous updates with no issues, snapshots are rotated on destination as designed In addition Veeam creates snapshots for backup on the source volume
SYNCMIRROR PLEX FAILED health error upon ONTAP Select reboot
https://kb.netapp.com/on-prem/ontap/ontap-select/Select-KBs/SYNCMIRROR_PLEX_FAILED_health_error_upon_ONTAP_Select_reboot
Applies to ONTAP Select Reboot SYNCMIRROR PLEX FAILED Issue SYNCMIRROR PLEX FAILED health error appears in case of one of the Select nodes experience a reboot due to a failover/outage.
SyncMirror could not create resynchronization snapshot (SSD space)
https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/SyncMirror_could_not_create_resynchronization_snapshot_SSD_space
Applies to SyncMirror FlashPool MetroCluster ONTAP 9.2 and later SSD space lower than 1% Issue There is no space left on aggregate with Flashpool configured: Fri Feb 7 09:10:11 CET [node1:raid.mirror....Applies to SyncMirror FlashPool MetroCluster ONTAP 9.2 and later SSD space lower than 1% Issue There is no space left on aggregate with Flashpool configured: Fri Feb 7 09:10:11 CET [node1:raid.mirror.resync.snapcrtfail:warning]: Aggregate aggr1: could not create mirror resynchronization snapshot mirror_resync. (No space left on device)
How to increase SyncMirror resync speed
https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/How_to_increase_SyncMirror_resync_speed
Applies to SyncMirror ONTAP 9.3+ Cloud Volumes ONTAP(CVO) on Amazon Web Services (AWS) ONTAP Select Description In certain circumstances, the default speed for resyncing a syncmirror plex might not be...Applies to SyncMirror ONTAP 9.3+ Cloud Volumes ONTAP(CVO) on Amazon Web Services (AWS) ONTAP Select Description In certain circumstances, the default speed for resyncing a syncmirror plex might not be fast enough to complete within a maintenance window using the default settings.
Synchronous Snapmirror Slow to Resync
https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/Synchronous_Snapmirror_Slow_to_Resync
Applies to ONTAP 8.2.5 7-Mode Syncmirror Issue Synchronous snapmirror was not immediately synced after a reverse resync operation For example, a snapmirror resync issued during a DR test or actual DR ...Applies to ONTAP 8.2.5 7-Mode Syncmirror Issue Synchronous snapmirror was not immediately synced after a reverse resync operation For example, a snapmirror resync issued during a DR test or actual DR event may take longer than expected to reach an In-Sync state
BadPoolAssign error during ONTAP upgrade
https://kb.netapp.com/on-prem/ontap/ontap-select/Select-KBs/BadPoolAssign_error_during_ONTAP_upgrade
Applies to ONTAP Select SyncMirror Issue After manually assigning disks to increase the size of an mirrored aggregate, BadPoolAssign alerts are seen on each Takeover/Giveback.
ONTAP Select (SYNCMIRROR PLEX FAILED) Takeover initiated due to network partitioning
https://kb.netapp.com/on-prem/ontap/ontap-select/Select-KBs/ONTAP_Select_SYNCMIRROR_PLEX_FAILED_Takeover_initiated_due_to_network_partitioning
Applies to NetApp ONTAP Select (OTS) NetApp ONTAP Deploy VMWare ESXi VMWare vCenter VMWare vSphere Issue Takeover initiated by another node with the indicated ASUP alert: HA Group Notification from <n...Applies to NetApp ONTAP Select (OTS) NetApp ONTAP Deploy VMWare ESXi VMWare vCenter VMWare vSphere Issue Takeover initiated by another node with the indicated ASUP alert: HA Group Notification from <node_name> (SYNCMIRROR PLEX FAILED) ALERT
Why are new plexes named plex2, plex5.. Why not plex 1 or 0?
https://kb.netapp.com/on-prem/ontap/ontap-select/Select-KBs/Why_are_new_plexes_named_plex2_plex5_Why_not_plex_1_or_0
 Applies to ONTAP 9 NetApp ONTAP Select NetApp SyncMirror Answer This is by design. The only requirement is that two plexes have different names. By default, we will get plex0 and plex1. They k... Applies to ONTAP 9 NetApp ONTAP Select NetApp SyncMirror Answer This is by design. The only requirement is that two plexes have different names. By default, we will get plex0 and plex1. They keep incrementing when plexes are destroyed and then re-created. Additional Information