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    • Multi-disk failure during disk firmware upgrade in fabric MetroCluster
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Multi-disk_failure_during_disk_firmware_upgrade_in_fabric_MetroCluster
      This KB addresses the issue with a high rate of disk failure during firmware upgrade in MetroCluster with ATTO Bridges running 3.16 or 4.16.
    • Multi Disk Panic but after reboot no disks are missing
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Multi_Disk_Panic_but_after_reboot_no_disks_are_missing
      Tue Aug 06 15:52:33 -0400 [node1: dmgr_thread: raid.disk.inserted:info]: Disk 11c.40.8 Shelf 40 Drawer 1 Slot 8 Bay 8 [NETAPP X377_HLBRE10TA07 NA03] S/N [XXXXXXX] UID [x:x:x:x] has been inserted into ...Tue Aug 06 15:52:33 -0400 [node1: dmgr_thread: raid.disk.inserted:info]: Disk 11c.40.8 Shelf 40 Drawer 1 Slot 8 Bay 8 [NETAPP X377_HLBRE10TA07 NA03] S/N [XXXXXXX] UID [x:x:x:x] has been inserted into the system Tue Aug 06 15:52:33 -0400 [node1: dmgr_thread: raid.disk.inserted:info]: Disk 11a.40.53 Shelf 40 Bay 53 [NETAPP X377_HLBRE10TA07 NA03] S/N [XXXXXXX] UID [x:x:x:x] has been inserted into the system Tue Aug 06 15:52:33 -0400 [node1: dmgr_thread: raid.disk.inserted:info]: Disk 11a.40.13 She…
    • Incorrect HDD IO latency calculation leads to disk failure
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Incorrect_HDD_IO_latency_calculation_leads_to_disk_failure
      Wed Nov 10 01:33:48 +0900 [node_name: disk_latency_monitor: shm.threshold.ioLatency:debug]: Disk 0b.00.6 has exceeded the expected IO latency in the current window with average latency of 15122 msecs ...Wed Nov 10 01:33:48 +0900 [node_name: disk_latency_monitor: shm.threshold.ioLatency:debug]: Disk 0b.00.6 has exceeded the expected IO latency in the current window with average latency of 15122 msecs and average utilization of 47 percent. Wed Nov 10 01:34:18 +0900 [node_name: disk_latency_monitor: shm.threshold.ioLatency:debug]: Disk 0b.00.6 has exceeded the expected IO latency in the current window with average latency of 15037 msecs and average utilization of 47 percent.
    • FlexArray ONTAP multi-disk failure panic during E-Series SANtricity OS upgrade
      https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/FlexArray_ONTAP_multi-disk_failure_panic_during_E-Series_SANtricity_OS_upgrade
      ONTAP node(s) encounter multi-disk failure panic during E-Series SANtricity OS upgrade: aggr AGGREGATE_NAME: raid xxxxx, fatal disk error in RAID group with no parity disk.. Raid type - raid0 Group na...ONTAP node(s) encounter multi-disk failure panic during E-Series SANtricity OS upgrade: aggr AGGREGATE_NAME: raid xxxxx, fatal disk error in RAID group with no parity disk.. Raid type - raid0 Group name plex0/rg0 state NORMAL. Disk XXXXXXX:1-XX.XXXLXX Shelf - Bay - [NETAPP INF-01-00 0870] S/N [6D039EA0000XXXXX000001XXXXXXXXXX] UID [6D039EA0:000XXXXX:00000XXX:XXXXXXXX:00000000:00000000:00000000:00000000:00000000:00000000] error: fatal disk error..