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Checksum errors identified by one ATTO bridge

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Category:
metrocluster
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MetroCluster
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Applies to

  • ONTAP 9
  • Fabric MetroCluster

Issue

A large amount of Checksum errors are reported during a RAID scrub and the disks identified are all accessed over the same switch port(s)
 
Example:
 
[ClusterA-n1: raidio_thread: raid_rg_scrub_cksum_err_1:notice]: params: {'disk_rpm': 'N/A', 'vendor': 'NETAPP  ', 'firmware_revision': 'NA54', 'shelf': '30', 'disk_info': 'Disk /CA_aggr1_n1/plex1/rg0/FabA-SW1:9.126L36 Shelf 30 Bay 9 [NETAPP   X357_S163A3T8ATE NA54] S/N [00000000000000] UID [5002538A:478418B0:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'site': 'Remote', 'bay': '9', 'carrier': '', 'serialno': 'S394NX0J801388', 'owner': '', 'model': 'X357_S163A3T8ATE', 'disk_type': '5', 'blockNum': '458328767'}
[ClusterA-n1: raidio_thread: raid_rg_readerr_repair_data_1:notice]: params: {'site': 'Remote', 'disk_rpm': 'N/A', 'vendor': 'NETAPP  ', 'firmware_revision': 'NA54', 'shelf': '30', 'disk_info': 'Disk /CA_aggr1_n1/plex1/rg0/FabA-SW1:9.126L36 Shelf 30 Bay 9 [NETAPP   X357_S163A3T8ATE NA54] S/N [00000000000000] UID [5002538A:478418B0:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'vbn': '1395938814', 'bay': '9', 'carrier': '', 'serialno': 'S394NX0J801388', 'owner': '', 'model': 'X357_S163A3T8ATE', 'disk_type': '5', 'blockNum': '458328766'}
[ClusterA-n1: raidio_thread: raid_rg_readerr_repair_cksum_error_1:notice]: params: {'disk_rpm': 'N/A', 'vendor': 'NETAPP  ', 'firmware_revision': 'NA54', 'shelf': '30', 'disk_info': 'Disk /CA_aggr1_n1/plex1/rg0/FabA-SW1:9.126L36 Shelf 30 Bay 9 [NETAPP   X357_S163A3T8ATE NA54] S/N [00000000000000] UID [5002538A:478418B0:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'site': 'Remote', 'bay': '9', 'carrier': '', 'serialno': 'S394NX0J801388', 'owner': '', 'model': 'X357_S163A3T8ATE', 'disk_type': '5', 'blockNum': '458328766'}
[ClusterA-n1: raidio_thread: raid_rg_readerr_repair_cksum_stored_1:notice]: params: {'disk_rpm': 'N/A', 'vendor': 'NETAPP  ', 'firmware_revision': 'NA54', 'shelf': '30', 'disk_info': 'Disk /CA_aggr1_n1/plex1/rg0/FabA-SW1:9.126L36 Shelf 30 Bay 9 [NETAPP   X357_S163A3T8ATE NA54] S/N [00000000000000] UID [5002538A:478418B0:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'site': 'Remote', 'bay': '9', 'carrier': '', 'serialno': 'S394NX0J801388', 'owner': '', 'model': 'X357_S163A3T8ATE', 'disk_type': '5', 'blockNum': '458328767'}
[ClusterA-n1: raidio_thread: raid_rg_readerr_repair_data_1:notice]: params: {'site': 'Remote', 'disk_rpm': 'N/A', 'vendor': 'NETAPP  ', 'firmware_revision': 'NA54', 'shelf': '30', 'disk_info': 'Disk /CA_aggr1_n1/plex1/rg0/FabB-SW1:9.126L41 Shelf 30 Bay 14 [NETAPP   X357_S163A3T8ATE NA54] S/N [00000000000000] UID [5002538A:47842530:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'vbn': '8023985918', 'bay': '14', 'carrier': '', 'serialno': '00000000000000', 'owner': '', 'model': 'X357_S163A3T8ATE', 'disk_type': '5', 'blockNum': '523068798'}
[ClusterA-n1: raidio_thread: raid_rg_readerr_repair_cksum_error_1:notice]: params: {'disk_rpm': 'N/A', 'vendor': 'NETAPP  ', 'firmware_revision': 'NA54', 'shelf': '30', 'disk_info': 'Disk /CA_aggr1_n1/plex1/rg0/FabB-SW1:9.126L41 Shelf 30 Bay 14 [NETAPP   X357_S163A3T8ATE NA54] S/N [00000000000000] UID [5002538A:47842530:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000]', 'site': 'Remote', 'bay': '14', 'carrier': '', 'serialno': '00000000000000', 'owner': '', 'model': 'X357_S163A3T8ATE', 'disk_type': '5', 'blockNum': '523068798'}

 
As seen in the example, these errors are usually detected and repaired immediately.

 

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Case Citation
695960c3-6d36-4c32-8b88-62efbb809dcc