RHEL hosts are not redirecting the path for boot LUNs when the iSCSI target fails over to another storage node.

Solution Verified - Updated -

Issue

  • RHEL hosts are not redirecting the path for boot LUNs when the iSCSI target fails over to another storage node where path redundancy configured.

  • I/O errors recorded during iscsi target fails over to another storage node.

end_request: I/O error, dev dm-0, sector 54943904
Buffer I/O error on device dm-6, logical blcock 0

iscsid: Kernel reported iSCSI connection 1:0 error (1020 - ISCSI_ERR_TCP_CONN_CLOSE: TCP connection closed) state (1)
kernel: connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 10442327984, last ping 10442332992, now 10442338000

Environment

  • Red Hat Enterprise Linux.
  • ISCSI used for root device.

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