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Linux 主机丢失 LUN 路径,并显示 blk_clked_rq_check_limits 错误

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适用场景

  • AFF-A800
  • ONTAP 9.6
  • ONTAP 9.7
  • 光纤通道( FC ) LUN
  • RedHat Enterprise Linux ( RHEL ) 7.6
  • RedHat Enterprise Linux ( RHEL ) 7.7
  • Linux Unified Host Utilities 7.1

问题描述

RHEL 7.6 主机丢失 LUN 的路径,并记录以下多路径错误:
 
kernel:blk_cloned_rq_check_limits: over max size limit
 
存储VPD公布的传输长度 与主机使用的长度不同:
 #sg_vpd -p /dev/sda
 
ONTAP
scsit_lu_1: scsiblade.invalid.xfer.len:notice]: Host type sent command opcode 0x2a with a transfer length of bytes, which exceeds the maximum of 1MB on LUN

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