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- https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Slow_restore_with_many_or_small_files_via_BlueXP_backup_and_recoveryApplies to BlueXP Backup and Recovery Dataset consisting of a large amount of small files Issue Restores involving small files or many files are slower than restores with fewer or larger files.
- https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/E-Series_high_FC_Host_IO_latency_with_VMware_ESXi6.xApplies to NetApp E-Series all platforms SANtricity 11.30 and above SANtricity OS 08.30 and above SANtricity Storage Manager Veeam Backup and Replication Issue High latency when doing a VMware backup ...Applies to NetApp E-Series all platforms SANtricity 11.30 and above SANtricity OS 08.30 and above SANtricity Storage Manager Veeam Backup and Replication Issue High latency when doing a VMware backup using Veeam backup installed on windows with access to NetApp E-Series array LUN
- https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Active_IQ_Unified_Manager_9.7__can_enabled_aQoS_on_workloads_automatiallyCluster::> qos statistics volume latency show Workload ID Latency Network Cluster Data Disk QoS Max QoS Min NVRAM --------------- ------ ---------- ---------- ---------- ---------- ---------- --------...Cluster::> qos statistics volume latency show Workload ID Latency Network Cluster Data Disk QoS Max QoS Min NVRAM --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ... vol1-wid21368 21368 879.73ms 283.00us 9.00us 498.00us 184.00us 0ms 877.99ms 216.00us vol2-wid19287 19287 736.25ms 401.00us 8.00us 734.00us 166.00us 0ms 734.91ms 199.00us
- https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Backup_jobs_via_CIFS_are_slow_while_doing_indirect_accessApplies to FAS 2XXX Backups done via CIFS Volumes being accessed indirectly (through LIF from partner node) Considerable increase of workload Issue Backups are running slow hence taking longer to comp...Applies to FAS 2XXX Backups done via CIFS Volumes being accessed indirectly (through LIF from partner node) Considerable increase of workload Issue Backups are running slow hence taking longer to complete.
- https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Intermittent_NFS_slownessApplies to ONTAP 9 Issue Accessing files over NFS is intermittently slow
- https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/Slow_Oracle_database_on_VMware_ESXi_using_VMware_s_NFSApplies to ONTAP 9 Oracle Redhat Linux 6.9 VMware ESXi Issue Slowness is seen from Oracle databases with low throughput and high latency, but ONTAP latency is low
- https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Why_does_flex_volume_clone_split_take_a_long_timeClone-splitting is a copy operation that might take considerable time and resources to carry out due to the following reasons: Free blocks in the aggregate are used to copy blocks shared between the p...Clone-splitting is a copy operation that might take considerable time and resources to carry out due to the following reasons: Free blocks in the aggregate are used to copy blocks shared between the parent and the clone Clone-splitting incurs disk I/O operations, and can potentially compete with other disk operations in the aggregate The clone split operation runs in the background and priorities are set in such a way that it does not significantly impact foreground operations.
- https://kb.netapp.com/on-prem/ontap/DP/NDMP/NDMP-KBs/Slow_or_failing_NDMP_backup_due_to_MediaAgent_resources_constraintsApplies to ONTAP 9 CommVault Netbackup Issue Backup is slow with sufficient controller and network resources Failures may be seen in the backup or NDMP logs Packet trace for the data connection shows ...Applies to ONTAP 9 CommVault Netbackup Issue Backup is slow with sufficient controller and network resources Failures may be seen in the backup or NDMP logs Packet trace for the data connection shows that the MediaAgent was sending zero windows to the NetApp NDMP server The receiver’s window size is a mechanism used by TCP to prevent the source from overwhelming the destination ONTAP's latency is low
- https://kb.netapp.com/data-mgmt/SnapCenter/SC_KBs/SCV_errors_when_attaching_a_disk_from_a_backup_to_a_vmWhen using SCV to right click a VM, choose the attach disk among the SCV tasks, a policy with ExportPolicy* name is created by SCV but it is not associated with the clone volume. When a clone volume i...When using SCV to right click a VM, choose the attach disk among the SCV tasks, a policy with ExportPolicy* name is created by SCV but it is not associated with the clone volume. When a clone volume is created in Ontap, the cloned volume is automatically associated to the export policy that the parent destination volume is using: SCV is expected to modify that but it doesn't. SCV gets an error when querying Ontap for the existence of the new clone:
- https://kb.netapp.com/on-prem/Switches/Brocade-KBs/Sporadically_intermittent_path_loss_to_LUNAll connected ESXi hosts report sporadically intermittent path loss to FC datastore for 1-2 seconds and then automatically reconnect stat_c2_frx 0 Class 2 frames received stat_c3_frx 217256125 Class 3...All connected ESXi hosts report sporadically intermittent path loss to FC datastore for 1-2 seconds and then automatically reconnect stat_c2_frx 0 Class 2 frames received stat_c3_frx 217256125 Class 3 frames received stat_lc_rx 0 Link control frames received stat_mc_rx 0 Multicast frames received er_enc_in 0 Encoding errors inside of frames er_rx_c3_timeout 0 Class 3 receive frames discarded due to timeout er_tx_c3_timeout 312 Class 3 transmit frames discarded due to timeout
- https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/SSH_connection_failing0000001d.0122bf04 11917ed9 Thu Oct 20 2022 15:18:08 +02:00 [daemon:info] 1 2022-10-20T15:18:08.222991+02:00 FILER-05 xinetd 7256 - - START: ssh pid=19585 from=::ffff:10.125.64.1 vsid=-1 role=0x10 0000...0000001d.0122bf04 11917ed9 Thu Oct 20 2022 15:18:08 +02:00 [daemon:info] 1 2022-10-20T15:18:08.222991+02:00 FILER-05 xinetd 7256 - - START: ssh pid=19585 from=::ffff:10.125.64.1 vsid=-1 role=0x10 0000001d.0122bf0c 11918001 Thu Oct 20 2022 15:18:38 +02:00 [daemon:info] 1 2022-10-20T15:18:38.249541+02:00 FILER-05 xinetd 7256 - - EXIT: ssh status=1 pid=19585 duration=30(sec)