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    • sas.port.down:debug message for SAS port went down
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/sas_port_down_debug_message_for_SAS_port_went_down
      cluster1::> qos statistics volume latency show -vserver svm1 -volume vol1 Workload ID Latency Network Cluster Data Disk QoS Max QoS Min NVRAM --------------- ------ ---------- ---------- ---------- --...cluster1::> qos statistics volume latency show -vserver svm1 -volume vol1 Workload ID Latency Network Cluster Data Disk QoS Max QoS Min NVRAM --------------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- -total- - 204.71ms 185.00us 7.00us 468.00us 204.04ms 0ms 0ms 11.00us vol1-wid32140 32140 222.22ms 86.00us 125.00us 904.00us 221.11ms 0ms 0ms 1.00us
    • scsi.cmd.checkCondition errors reported for all the disks in the same path
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/scsi.cmd.checkCondition_errors_reported_for_all_the_disks_in_the_same_path
      Wed Jun 03 00:05:13 CEST [node_name: scsi_cmdblk_strthr_admin: scsi.cmd.checkCondition:error]: Disk device 0a.00.8: Check Condition: CDB 0x88:000000019798d2c8:00000068: Sense Data SCSI:aborted command...Wed Jun 03 00:05:13 CEST [node_name: scsi_cmdblk_strthr_admin: scsi.cmd.checkCondition:error]: Disk device 0a.00.8: Check Condition: CDB 0x88:000000019798d2c8:00000068: Sense Data SCSI:aborted command - (0xb - 0x4b 0x7 0x0)(6). Wed Jun 03 00:07:40 CEST [node_name: scsi_cmdblk_strthr_admin: scsi.cmd.checkCondition:error]: Disk device 0a.00.4: Check Condition: CDB 0x88:0000000197361e70:00000008: Sense Data SCSI:aborted command - (0xb - 0x4b 0x7 0x0)(6).
    • Recovered errors with sense code ASC=0x95 ASCQ=0x1 on RHEL host regarding E-Series
      https://kb.netapp.com/on-prem/E-Series/Hardware-KBs/Recovered_errors_with_sense_code_ASC_0x95_ASCQ_0x1_on_RHEL_host_regarding_E_Series
      Generic recovered errors on RHEL server, regarding SANtricity LUNs over direct-attached connectivity, while there are no issues or hardware failures reported in SANtricity System Manager: Jul 21 02:48...Generic recovered errors on RHEL server, regarding SANtricity LUNs over direct-attached connectivity, while there are no issues or hardware failures reported in SANtricity System Manager: Jul 21 02:48:06 nfs26 kernel: sd 16:0:1:1: [sdq] <<vendor>>ASC=0x95 ASCQ=0x1 Jul 21 02:48:06 nfs26 kernel: sd 16:0:1:1: [sdq] Sense Key : Recovered Error [current] Jul 21 02:48:06 nfs26 kernel: sd 16:0:1:1: [sdq] Add. Jul 21 02:48:07 nfs26 kernel: sd 16:0:1:1: [sdq] Sense Key : Recovered Error [current]
    • E and EF Series volume read performance issue on random i/o workload
      https://kb.netapp.com/on-prem/E-Series/SANtricity-OS-KBs/E_and_EF_Series_volume_read_performance_issue_on_random_i_o_workload
      Applies to All E and EF series arrays Issue Read and Write latency on the volume is more than 90ms where the volume pieces resides either on SSD or SAS based drives.
    • Windows 2019 sees BSOD when adding SAS device support under MPIO properties
      https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/Windows_2019_sees_BSOD_when_adding_SAS_device_support_under_MPIO_properties
      Applies to ESXi 6.5 Windows 2019 Issue Windows 2019 Guest OS may BSOD on next boot up sequence stating Boot volume is no longer accessible after configuring SAS device support in MPIO properties
    • Shelf connected to FAS/ AFF system missing a path to the Node
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Shelf_connected_to_FAS__AFF_system_missing_a_path_to_the_Node
      Level 1: WWN <World_Wide_Name_id>, ID 0, Product 'DS424IOM3', Rev '0212', Slot A Level 2: WWN <World_Wide_Name_id>, ID 1, Product 'DS424IOM3', Rev '0212', Slot A Level 3: WWN <World_Wide_Name_id>, ID ...Level 1: WWN <World_Wide_Name_id>, ID 0, Product 'DS424IOM3', Rev '0212', Slot A Level 2: WWN <World_Wide_Name_id>, ID 1, Product 'DS424IOM3', Rev '0212', Slot A Level 3: WWN <World_Wide_Name_id>, ID 2, Product 'DS424IOM3', Rev '0212', Slot A Level 4: WWN <World_Wide_Name_id>, ID 3, Product 'DS424IOM3', Rev '0212', Slot A Level 5: WWN <World_Wide_Name_id>, ID 4, Product 'DS424IOM3', Rev '0212', Slot A Level 6: WWN <World_Wide_Name_id>, ID 5, Product 'DS424IOM3', Rev '0212', Slot A
    • Disk detected in sysconfig-a but FAILED in sysconfig-r after replacement
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Disk_detected_in_sysconfig-a_but_FAILED_in_sysconfig-r_after_replacement
      Disk Qualification Package (DQP) Disk failed and replaced. Listed in sysconfig -a output. The replaced disk is listed as spare and not replaced in the RAID group. RAID group /aggr4/plex0/rg0 (normal, ...Disk Qualification Package (DQP) Disk failed and replaced. Listed in sysconfig -a output. The replaced disk is listed as spare and not replaced in the RAID group. RAID group /aggr4/plex0/rg0 (normal, block checksums) RAID group /aggr4/plex0/rg1 (degraded, block checksums) RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) data FAILED N/A 7486157/ - Disk Qualification Package Details: Package Date: Unable to load any package (Package version not supported)
    • SAS adapter communication issue resulted in disk failure and disk missing
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/SAS_adapter_communication_issue_resulted_in_disk_failure_and_disk_missing
      The storage system was restarted due to a power failure in the server room. Afterwards, one disk has failed and two disks were missing from the sysconfig -a output. Resetting continues for SAS port 0a...The storage system was restarted due to a power failure in the server room. Afterwards, one disk has failed and two disks were missing from the sysconfig -a output. Resetting continues for SAS port 0a and two missed disks. Resetting SAS adapter 0a. Resetting Unknown device 0a.02.6 from adapter 0a. Resetting Unknown device 0b.02.14 from adapter 0a. Phy state shows Disabled. slot 0: SAS Host Adapter 0a (PMC-Sierra PM8001 rev. slot 0: SAS Host Adapter 0b (PMC-Sierra PM8001 rev. C, SAS, <UP>)
    • FAS8300 one SAS HBA show OFFLINE soft status after PCM replacement
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/SAS_Host_Adapter_OFFLINE
      Applies to FAS8300 ONTAP 9 Issue FAS8300 one SAS HBA show <OFFLINE (soft)> status after PCM replacement. From sysconfig -a output: slot 3: SAS Host Adapter 3b (Broadcom SAS3616W rev. 2, SAS, <OFFLINE ...Applies to FAS8300 ONTAP 9 Issue FAS8300 one SAS HBA show <OFFLINE (soft)> status after PCM replacement. From sysconfig -a output: slot 3: SAS Host Adapter 3b (Broadcom SAS3616W rev. 2, SAS, <OFFLINE (soft)>) Mini-SAS HD Vendor: Amphenol Mini-SAS HD Part Number: 112-00437+A0 Mini-SAS HD Type: Passive Copper (unequalized) 2m end_1 Mini-SAS HD Serial Number: APF21211111111
    • Shelf connected to FAS/ AFF system missing a path to the Node due to SAS port down
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Shelf_connected_to_FAS%2F%2F_AFF_system_missing_a_path_to_the_Node_due_to_SAS_port_down
      Level 1: WWN <World_Wide_Name_id>, ID 0, Product 'DS424IOM3', Rev '0212', Slot A Level 2: WWN <World_Wide_Name_id>, ID 1, Product 'DS424IOM3', Rev '0212', Slot A Level 3: WWN <World_Wide_Name_id>, ID ...Level 1: WWN <World_Wide_Name_id>, ID 0, Product 'DS424IOM3', Rev '0212', Slot A Level 2: WWN <World_Wide_Name_id>, ID 1, Product 'DS424IOM3', Rev '0212', Slot A Level 3: WWN <World_Wide_Name_id>, ID 2, Product 'DS424IOM3', Rev '0212', Slot A Level 4: WWN <World_Wide_Name_id>, ID 3, Product 'DS424IOM3', Rev '0212', Slot A Level 5: WWN <World_Wide_Name_id>, ID 4, Product 'DS424IOM3', Rev '0212', Slot A Level 6: WWN <World_Wide_Name_id>, ID 5, Product 'DS424IOM3', Rev '0212', Slot A