ファブリック MetroCluster - ISL ポートでのリンクリセット

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環境

ファブリック接続MetroCluster
ONTAP 9
バックエンドBrocadeスイッチ

問題

考えられる症状：

リモートサイトのディスクにアクセスする際に、FC-VIアダプタの切断エラーまたは転送エラーの組み合わせがEMSログに記録されます。

[node1: fcvi_cm: fcvi.qlgc.sent.disconnect:notice]: FC-VI adapter: Disconnect request sent on port 1a. QP name = RAID, QP index = 3, Remote node's system id = 123456789. [node1: fcvi_cm: fcvi.qlgc.sent.disconnect:notice]: FC-VI adapter: Disconnect request sent on port 1a. QP name = MISC, QP index = 4, Remote node's system id = 123456789. [node1: fcvi_cm: fcvi.qlgc.sent.disconnect:notice]: FC-VI adapter: Disconnect request sent on port 1a. QP name = STREAM, QP index = 5, Remote node's system id = 123456789. [node1: fcvi_cm: fcvi.qlgc.sent.disconnect:notice]: FC-VI adapter: Disconnect request sent on port 1a. QP name = DRSOM_HB, QP index = 6, Remote node's system id = 123456789. [node1: ispfcvi2500_main1: fcvi.qlgc.ioErr:error]: FC-VI adapter: FCVI driver on port 1a received IO error. Status = FW detected response error(status code = 0x121), FCVI opcode = Write Request(0x1), QP name = RAID, QP index = 11, Remote node's system id = 123456789. [node1: fcvi_cm: fcvi.qlgc.sent.disconnect:notice]: FC-VI adapter: Disconnect request sent on port 1a. QP name = STREAM, QP index = 13, Remote node's system id = 123456789. [node1: fcvi_cm: fcvi.qlgc.sent.disconnect:notice]: FC-VI adapter: Disconnect request sent on port 1a. QP name = DRSOM_HB, QP index = 14, Remote node's system id = 123456789. [node1: fcvi_cm: fcvi.qlgc.sent.disconnect:notice]: FC-VI adapter: Disconnect request sent on port 1a. QP name = DRC_KILL, QP index = 15, Remote node's system id = 123456789.

[node1: isp2400_timeout_2: fci.device.quiesce:debug]: Adapter 5a encountered a command timeout on Disk device REMOTE_FAB1_SW1:6.126 (0x06070600) LUN 22 cdb 0x2a:5a93b808:01f8 retry: 0 Quiescing the device. [node1: isp2400_timeout_2: fci.device.timeout:debug]: HBA 5a encountered a device timeout on Disk device REMOTE_FAB1_SW1:6.126 (0x06070600) LUN 30 cdb 0x2a:5a93b818:01e8 retry: 0

Brocadeスイッチで、1つ以上のISL インターフェイスがリセットされたと報告されています。

CHASSIS, WARNING, Brocade6505, Single RDY/Frame Loss detected and recovered on Slot 0,Port 8(12) rdy(0x1)/frame(0x0). CHASSIS, WARNING, Brocade6505, Multi RDY/Frame Loss detected on Slot 0, Port 8 CHASSIS, WARNING, Brocade6505, Link Reset on Port S0,P10 2334, FID 128, INFO,switch1, Port (ID: 8) QoS is disabled.

ノードでもう一方のサイトで障害が発生したディスクが報告されることがあります。

[node1: disk_server_0: scsi.debug:debug]: shm_setup_for_failure disk REMOTE_FAB1_SW1:9.126L1024 (S/N XXXXXXXXXXXXXX) error 4000h

[node1: config_thread: raid.config.filesystem.disk.failed:error]: File system Disk n1_aggr/plex6/rg0/REMOTE_FAB1_SW1:9.126L1024 Shelf 12 Bay 23 [NETAPP X371_S1643960ATE NA54] S/N [XXXXXXXXXXXXXX] UID [5002538B:01290E60:00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000] failed.

LUNで接続/切断が発生する可能性があるため、LUN にアクセスできない可能性があります。