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    <title>topic Upgrade VMware ESXI from 5.5 to 6.5 now seeing latency issues in VMware Solutions Discussions</title>
    <link>https://community.netapp.com/t5/VMware-Solutions-Discussions/Upgrade-VMware-ESXI-from-5-5-to-6-5-now-seeing-latency-issues/m-p/142520#M9366</link>
    <description>&lt;P&gt;Can I just start of by saying I only have a basic understanding of netapp so please bare with me, unfortunately our netapp admins has been signed off work for a few weeks sick.....&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We have ESXI hosts 2 for managment (mgt) and 6 for development (dev). All&amp;nbsp;&lt;SPAN&gt;ProLiant BL460c Gen8&amp;nbsp;Intel Xeon CPU E5-2670 0 @ 2.60GHz x 2 262gb ram&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Both Dev and Mgt connect to the same Netapp&amp;nbsp; We upgraded our hosts from 5.5 to 6.5 and since then we've been having latency issues with the dev cluster which eventually brings everything to a halt.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We have 2 netapp FAS2240-4&lt;/P&gt;
&lt;P&gt;Type: HA Pair&lt;/P&gt;
&lt;P&gt;Version 8.2.3p6 7-mode&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;netapp1&lt;/P&gt;
&lt;P&gt;In aggregate i see 1aggregate&lt;/P&gt;
&lt;P&gt;hybrid0&lt;/P&gt;
&lt;P&gt;RAID Type:&lt;BR /&gt;mixed_raid_type, hybrid&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;netapp2 has 2 agrregates&lt;/P&gt;
&lt;P&gt;aggr0&lt;/P&gt;
&lt;P&gt;sata0&lt;/P&gt;
&lt;P&gt;RAID Type:&lt;BR /&gt;RAID-DP&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;The 2 ESXI&amp;nbsp;mgt hosts connect only use datastores from volumes on netapp2&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;The 6 ESXI dev hosts connect to both netapp1 and netapp2&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We are using&amp;nbsp;Emulex Corporation 2 x HP FlexFabric 10Gb 2-port 554FLB Adapters for iscsi on each host.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Sometimes we are seeing latency for some vm's up to .5 seconds. Every now and then a host will fail and the vm's will start to be moved around which causes more heavy disk usage and one by one the other hosts fail.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;I see this in the vmkernel logs:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;suing command 0x439d40b94cc0&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:52.688Z cpu27:66195)WARNING: NMP: nmpDeviceAttemptFailover:640: Retry world failover device "naa.60a9800042394542503f49426b6f724a" - issuing command 0x439d5238a4c0&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:52.689Z cpu22:66371)NMP: nmpCompleteRetryForPath:327: Retry world recovered device "naa.60a9800042394542503f49426b6f7242"&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.335Z cpu12:66370)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x8a (0x43954c8049c0, 76476) to dev "naa.60a9800042394542503f49426b6f7246" on path "vmhba64:C0:T7:L5" Failed: H:0x1 D:0x0 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:FAILOVER&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.335Z cpu12:66370)WARNING: NMP: nmp_DeviceRetryCommand:133: Device "naa.60a9800042394542503f49426b6f7246": awaiting fast path state update for failover with I/O blocked. No prior reservation exists on the device.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.693Z cpu22:66195)WARNING: NMP: nmpDeviceAttemptFailover:640: Retry world failover device "naa.60a9800042394542503f49426b6f7246" - issuing command 0x43954c8049c0&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.694Z cpu12:66370)NMP: nmpCompleteRetryForPath:327: Retry world recovered device "naa.60a9800042394542503f49426b6f7246"&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.819Z cpu22:66371)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d40bab540, 65575) to dev "naa.60a9800042394542503f49426b6f7236" on path "vmhba64:C0:T7:L0" Failed: H:0x1 D:0x0 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:FAILOVER&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.819Z cpu22:66371)WARNING: NMP: nmp_DeviceRetryCommand:133: Device "naa.60a9800042394542503f49426b6f7236": awaiting fast path state update for failover with I/O blocked. No prior reservation exists on the device.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:54.687Z cpu3:112734)WARNING: NMP: nmpDeviceAttemptFailover:640: Retry world failover device "naa.60a9800042394542503f49426b6f7236" - issuing command 0x439d40bab540&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;or this:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;/var/run/log/vmkernel.log:2018-09-04T17:06:56.949Z cpu16:72849)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.60a9800042394542503f49426b6f724a" state in doubt; requested fast path state update...&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:06:56.949Z cpu16:72849)ScsiDeviceIO: 2968: Cmd(0x439d40bf0ac0) 0xfe, CmdSN 0x88e from world 65575 to dev "naa.60a9800042394542503f49426b6f724a" failed H:0x5 D:0x40 P:0x0 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:03.078Z cpu18:66394)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d4528e0c0, 67172) to dev "naa.60a98000424155764b5d493836386659" on path "vmhba1:C0:T2:L0" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:03.078Z cpu18:66394)ScsiDeviceIO: 2933: Cmd(0x439d4521a8c0) 0xfe, CmdSN 0xb54 from world 67172 to dev "naa.60a98000424155764b5d493836386659" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.614Z cpu27:72852)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d4cff09c0, 65575) to dev "naa.60a9800042394542503f49426b6f7244" on path "vmhba1:C0:T5:L4" Failed: H:0x5 D:0x40 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:EVAL&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.614Z cpu27:72852)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.60a9800042394542503f49426b6f7244" state in doubt; requested fast path state update...&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.614Z cpu27:72852)ScsiDeviceIO: 2968: Cmd(0x439d40bc7fc0) 0xfe, CmdSN 0x65e from world 65575 to dev "naa.60a9800042394542503f49426b6f7244" failed H:0x5 D:0x40 P:0x0 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.620Z cpu15:66393)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x43954115bac0, 72866) to dev "naa.60a9800042394542503f49426b6f7246" on path "vmhba1:C0:T5:L5" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.620Z cpu15:66393)ScsiDeviceIO: 2933: Cmd(0x43954cff4900) 0xfe, CmdSN 0xa9e from world 72866 to dev "naa.60a9800042394542503f49426b6f7246" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:30.676Z cpu27:65935)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d45294640, 65575) to dev "naa.60a9800042394542503f49426b6f7248" on path "vmhba1:C0:T6:L6" Failed: H:0x5 D:0x40 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:EVAL&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:30.676Z cpu27:65935)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.60a9800042394542503f49426b6f7248" state in doubt; requested fast path state update...&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:30.676Z cpu27:65935)ScsiDeviceIO: 2968: Cmd(0x439d40bb7240) 0xfe, CmdSN 0x9be from world 65575 to dev "naa.60a9800042394542503f49426b6f7248" failed H:0x5 D:0x40 P:0x0 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:08:05.677Z cpu8:66393)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439541001640, 73158) to dev "naa.60a9800042394542503f49426b6f724a" on path "vmhba1:C0:T7:L7" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:08:05.677Z cpu8:66393)ScsiDeviceIO: 2933: Cmd(0x43954101a540) 0xfe, CmdSN 0x921 from world 73158 to dev "naa.60a9800042394542503f49426b6f724a" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:14:08.592Z cpu0:66393)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x43954ce46800, 73833) to dev "naa.60a9800042394542503f49426b6f7248" on path "vmhba1:C0:T5:L6" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:14:08.592Z cpu0:66393)ScsiDeviceIO: 2933: Cmd(0x439d40a954c0) 0xfe, CmdSN 0xc1a from world 73833 to dev "naa.60a9800042394542503f49426b6f7248" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;It only happens to the dev cluster which is uses the ssd hybrid volumes.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We reverted back to 5.5 once before and everything was ok. We then updated all device firmware then upgraded to 6.5 and installed the drivers according to vmware compatibility lists.&lt;/P&gt;</description>
    <pubDate>Wed, 04 Jun 2025 13:21:21 GMT</pubDate>
    <dc:creator>parisvi</dc:creator>
    <dc:date>2025-06-04T13:21:21Z</dc:date>
    <item>
      <title>Upgrade VMware ESXI from 5.5 to 6.5 now seeing latency issues</title>
      <link>https://community.netapp.com/t5/VMware-Solutions-Discussions/Upgrade-VMware-ESXI-from-5-5-to-6-5-now-seeing-latency-issues/m-p/142520#M9366</link>
      <description>&lt;P&gt;Can I just start of by saying I only have a basic understanding of netapp so please bare with me, unfortunately our netapp admins has been signed off work for a few weeks sick.....&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We have ESXI hosts 2 for managment (mgt) and 6 for development (dev). All&amp;nbsp;&lt;SPAN&gt;ProLiant BL460c Gen8&amp;nbsp;Intel Xeon CPU E5-2670 0 @ 2.60GHz x 2 262gb ram&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Both Dev and Mgt connect to the same Netapp&amp;nbsp; We upgraded our hosts from 5.5 to 6.5 and since then we've been having latency issues with the dev cluster which eventually brings everything to a halt.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We have 2 netapp FAS2240-4&lt;/P&gt;
&lt;P&gt;Type: HA Pair&lt;/P&gt;
&lt;P&gt;Version 8.2.3p6 7-mode&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;netapp1&lt;/P&gt;
&lt;P&gt;In aggregate i see 1aggregate&lt;/P&gt;
&lt;P&gt;hybrid0&lt;/P&gt;
&lt;P&gt;RAID Type:&lt;BR /&gt;mixed_raid_type, hybrid&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;netapp2 has 2 agrregates&lt;/P&gt;
&lt;P&gt;aggr0&lt;/P&gt;
&lt;P&gt;sata0&lt;/P&gt;
&lt;P&gt;RAID Type:&lt;BR /&gt;RAID-DP&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;The 2 ESXI&amp;nbsp;mgt hosts connect only use datastores from volumes on netapp2&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;The 6 ESXI dev hosts connect to both netapp1 and netapp2&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We are using&amp;nbsp;Emulex Corporation 2 x HP FlexFabric 10Gb 2-port 554FLB Adapters for iscsi on each host.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Sometimes we are seeing latency for some vm's up to .5 seconds. Every now and then a host will fail and the vm's will start to be moved around which causes more heavy disk usage and one by one the other hosts fail.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;I see this in the vmkernel logs:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;suing command 0x439d40b94cc0&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:52.688Z cpu27:66195)WARNING: NMP: nmpDeviceAttemptFailover:640: Retry world failover device "naa.60a9800042394542503f49426b6f724a" - issuing command 0x439d5238a4c0&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:52.689Z cpu22:66371)NMP: nmpCompleteRetryForPath:327: Retry world recovered device "naa.60a9800042394542503f49426b6f7242"&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.335Z cpu12:66370)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x8a (0x43954c8049c0, 76476) to dev "naa.60a9800042394542503f49426b6f7246" on path "vmhba64:C0:T7:L5" Failed: H:0x1 D:0x0 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:FAILOVER&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.335Z cpu12:66370)WARNING: NMP: nmp_DeviceRetryCommand:133: Device "naa.60a9800042394542503f49426b6f7246": awaiting fast path state update for failover with I/O blocked. No prior reservation exists on the device.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.693Z cpu22:66195)WARNING: NMP: nmpDeviceAttemptFailover:640: Retry world failover device "naa.60a9800042394542503f49426b6f7246" - issuing command 0x43954c8049c0&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.694Z cpu12:66370)NMP: nmpCompleteRetryForPath:327: Retry world recovered device "naa.60a9800042394542503f49426b6f7246"&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.819Z cpu22:66371)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d40bab540, 65575) to dev "naa.60a9800042394542503f49426b6f7236" on path "vmhba64:C0:T7:L0" Failed: H:0x1 D:0x0 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:FAILOVER&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:53.819Z cpu22:66371)WARNING: NMP: nmp_DeviceRetryCommand:133: Device "naa.60a9800042394542503f49426b6f7236": awaiting fast path state update for failover with I/O blocked. No prior reservation exists on the device.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T16:39:54.687Z cpu3:112734)WARNING: NMP: nmpDeviceAttemptFailover:640: Retry world failover device "naa.60a9800042394542503f49426b6f7236" - issuing command 0x439d40bab540&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;or this:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;/var/run/log/vmkernel.log:2018-09-04T17:06:56.949Z cpu16:72849)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.60a9800042394542503f49426b6f724a" state in doubt; requested fast path state update...&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:06:56.949Z cpu16:72849)ScsiDeviceIO: 2968: Cmd(0x439d40bf0ac0) 0xfe, CmdSN 0x88e from world 65575 to dev "naa.60a9800042394542503f49426b6f724a" failed H:0x5 D:0x40 P:0x0 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:03.078Z cpu18:66394)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d4528e0c0, 67172) to dev "naa.60a98000424155764b5d493836386659" on path "vmhba1:C0:T2:L0" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:03.078Z cpu18:66394)ScsiDeviceIO: 2933: Cmd(0x439d4521a8c0) 0xfe, CmdSN 0xb54 from world 67172 to dev "naa.60a98000424155764b5d493836386659" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.614Z cpu27:72852)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d4cff09c0, 65575) to dev "naa.60a9800042394542503f49426b6f7244" on path "vmhba1:C0:T5:L4" Failed: H:0x5 D:0x40 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:EVAL&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.614Z cpu27:72852)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.60a9800042394542503f49426b6f7244" state in doubt; requested fast path state update...&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.614Z cpu27:72852)ScsiDeviceIO: 2968: Cmd(0x439d40bc7fc0) 0xfe, CmdSN 0x65e from world 65575 to dev "naa.60a9800042394542503f49426b6f7244" failed H:0x5 D:0x40 P:0x0 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.620Z cpu15:66393)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x43954115bac0, 72866) to dev "naa.60a9800042394542503f49426b6f7246" on path "vmhba1:C0:T5:L5" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:20.620Z cpu15:66393)ScsiDeviceIO: 2933: Cmd(0x43954cff4900) 0xfe, CmdSN 0xa9e from world 72866 to dev "naa.60a9800042394542503f49426b6f7246" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:30.676Z cpu27:65935)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439d45294640, 65575) to dev "naa.60a9800042394542503f49426b6f7248" on path "vmhba1:C0:T6:L6" Failed: H:0x5 D:0x40 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:EVAL&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:30.676Z cpu27:65935)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.60a9800042394542503f49426b6f7248" state in doubt; requested fast path state update...&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:07:30.676Z cpu27:65935)ScsiDeviceIO: 2968: Cmd(0x439d40bb7240) 0xfe, CmdSN 0x9be from world 65575 to dev "naa.60a9800042394542503f49426b6f7248" failed H:0x5 D:0x40 P:0x0 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:08:05.677Z cpu8:66393)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x439541001640, 73158) to dev "naa.60a9800042394542503f49426b6f724a" on path "vmhba1:C0:T7:L7" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:08:05.677Z cpu8:66393)ScsiDeviceIO: 2933: Cmd(0x43954101a540) 0xfe, CmdSN 0x921 from world 73158 to dev "naa.60a9800042394542503f49426b6f724a" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:14:08.592Z cpu0:66393)NMP: nmp_ThrottleLogForDevice:3647: Cmd 0x89 (0x43954ce46800, 73833) to dev "naa.60a9800042394542503f49426b6f7248" on path "vmhba1:C0:T5:L6" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0xe 0x1d 0x0. Act:NONE&lt;BR /&gt;/var/run/log/vmkernel.log:2018-09-04T17:14:08.592Z cpu0:66393)ScsiDeviceIO: 2933: Cmd(0x439d40a954c0) 0xfe, CmdSN 0xc1a from world 73833 to dev "naa.60a9800042394542503f49426b6f7248" failed H:0x0 D:0x2 P:0x5 Invalid sense data: 0x80 0x41 0x0.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;It only happens to the dev cluster which is uses the ssd hybrid volumes.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;We reverted back to 5.5 once before and everything was ok. We then updated all device firmware then upgraded to 6.5 and installed the drivers according to vmware compatibility lists.&lt;/P&gt;</description>
      <pubDate>Wed, 04 Jun 2025 13:21:21 GMT</pubDate>
      <guid>https://community.netapp.com/t5/VMware-Solutions-Discussions/Upgrade-VMware-ESXI-from-5-5-to-6-5-now-seeing-latency-issues/m-p/142520#M9366</guid>
      <dc:creator>parisvi</dc:creator>
      <dc:date>2025-06-04T13:21:21Z</dc:date>
    </item>
  </channel>
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