NetApp EシリーズのFrequent Volume not on preferred pathアラート

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Category:: e-series-systems

Specialty:: esg

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環境

NetApp Eシリーズ
iSCSIホスト接続
Windowsホスト

問題

コントローラが非常に頻繁にボリュームが優先パス上にないと報告し、解決しています。
主なイベントログには、

A:2/26/24, 9:46:05 AM (09:46:05) 77317 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: Cache Reconfigure Sync-8 A:2/26/24, 9:46:05 AM (09:46:05) 77316 212c Write-back caching fully restored - Shelf 99, Bay A A:2/26/24, 9:46:04 AM (09:46:04) 77315 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: Cache Reconfigure Sync-5 B:2/26/24, 9:46:05 AM (09:46:05) 77314 2044 IO shipping implicit volume transfer - Volume MTBK110_CommvaultMP4 ----> Shipped/Owned IOs: 184/12, Host ID: 12 B:2/26/24, 9:46:05 AM (09:46:05) 77313 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: Give Volume Ownership-8 B:2/26/24, 9:46:04 AM (09:46:04) 77312 2044 IO shipping implicit volume transfer - Volume MTBK110_CommvaultMP1 ----> Shipped/Owned IOs: 158/1, Host ID: 12 B:2/26/24, 9:46:04 AM (09:46:04) 77311 212c Write-back caching fully restored - Shelf 99, Bay B B:2/26/24, 9:46:04 AM (09:46:04) 77310 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: Give Volume Ownership-5 A:2/26/24, 7:49:32 AM (07:49:32) 77309 9104 Analysis of workload balance was performed - None B:2/26/24, 7:44:24 AM (07:44:24) 77308 2049 Fail-back implicit volume transfer - Volume MTBK110_CommvaultMP4 B:2/26/24, 7:44:24 AM (07:44:24) 77307 2049 Fail-back implicit volume transfer - Volume MTBK110_CommvaultMP2 B:2/26/24, 7:44:24 AM (07:44:24) 77305 212c Write-back caching fully restored - Shelf 99, Bay B B:2/26/24, 7:44:23 AM (07:44:23) 77304 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: Take Volume Ownership-6 A:2/26/24, 7:44:24 AM (07:44:24) 77301 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: Cache Reconfigure Sync-6 A:2/26/24, 7:39:53 AM (07:39:53) 77300 212c Write-back caching fully restored - Shelf 99, Bay A A:2/26/24, 7:39:53 AM (07:39:53) 77299 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: Cache Reconfigure Sync-5 B:2/26/24, 7:40:22 AM (07:40:22) 77298 4011 Volume not on preferred path due to AVT/RDAC failover - Shelf 99, Bay B <--CRITICAL B:2/26/24, 7:39:53 AM (07:39:53) 77297 2049 Fail-back implicit volume transfer - Volume MTBK110_CommvaultMP1 B:2/26/24, 7:39:53 AM (07:39:53) 77296 212c Write-back caching fully restored - Shelf 99, Bay B B:2/26/24, 7:39:52 AM (07:39:52) 77295 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: Take Volume Ownership-5 A:2/26/24, 7:38:22 AM (07:38:22) 77294 212c Write-back caching fully restored - Shelf 99, Bay A A:2/26/24, 7:38:21 AM (07:38:21) 77293 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: Cache Reconfigure Sync-8 B:2/26/24, 7:38:22 AM (07:38:22) 77292 2044 IO shipping implicit volume transfer - Volume MTBK110_CommvaultMP4 ----> Shipped/Owned IOs: 1399/0, Host ID: 12 B:2/26/24, 7:38:22 AM (07:38:22) 77291 212c Write-back caching fully restored - Shelf 99, Bay B B:2/26/24, 7:38:21 AM (07:38:21) 77290 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay B - Event: Give Volume Ownership-8 A:2/26/24, 7:36:18 AM (07:36:18) 77289 2024 Media scan (scrub) resumed - Volume MTBK110_CommvaultMP2 A:2/26/24, 7:36:18 AM (07:36:18) 77288 212c Write-back caching fully restored - Shelf 99, Bay A A:2/26/24, 7:36:17 AM (07:36:17) 77287 210a Controller cache not enabled or was internally disabled - Shelf 99, Bay A - Event: Cache Reconfigure Sync-6 B:2/26/24, 7:36:18 AM (07:36:18) 77286 2044 IO shipping implicit volume transfer - Volume MTBK110_CommvaultMP2 ----> Shipped/Owned IOs: 1433/0, Host ID: 12

Initiator iSCSI name: iqn.1991-05.com.microsoft:xxx.xxx.xxxxx.xxx.xx (host MTBK110)

Sessions/Connections to Controller A:

192.168.xxx.xx -> 192.168.xxx.xx 192.168.xxx.xx -> 192.168.xxx.xx 192.168.xxx.xx -> 192.168.xxx.xx 192.168.xxx.xx -> 192.168.xxx.xx 192.168.xxx.xx -> 192.168.xxx.xx

Sessions/Connections to Controller B:

192.168.xxx.xx -> 192.168.xxx.xx 192.168.xxx.xx -> 192.168.xxx.xx 192.168.xxx.xx -> 192.168.xxx.xx