topic Re: Slow server access and Latency errors on ESXi Host 5.1 U3 since migrating to Netapp V3240 in VMware Solutions Discussions

Slow server access and Latency errors on ESXi Host 5.1 U3 since migrating to Netapp V3240

NETAPPDOW — Wed, 04 Jun 2025 15:30:29 GMT

Hi;

Migrated off of a pair of mirrored EVA8000(P6000)'s to a snap-mirrored set of V3240s. (one with 600GB SAS, the other 2TB SATA) (NetApp Release 8.2.3P4 7-Mode) running over FC with Emulex LPe12000 HBA's.

VM Server access is really slow now, along with User data access.

VMWare ESXi Host (5.1U3) is showing a lot of latency errors like below.

Device naa.60a980004431396a375d444859356e31 performance has deteriorated. I/O latency
increased from average value of 4329 microseconds to 87418 microseconds.
warning
1/31/2017 1:04:55 AM
10.80.1.237

Anyone have any ideas what might be going on, and what to look for to fix it?

Thanks.

Gregg

Re: Slow server access and Latency errors on ESXi Host 5.1 U3 since migrating to Netapp V3240

thomas_glodde — Tue, 31 Jan 2017 19:07:30 GMT

I´d suggest to go for VMWare 5.5 latest U and ONTAP 8.2.4 latest P.

Then check the netapp interop matrix and the vmware matrix, usualy you need an updated fc driver for the hba which most often fixes any issues.

Re: Slow server access and Latency errors on ESXi Host 5.1 U3 since migrating to Netapp V3240

NETAPPDOW — Tue, 31 Jan 2017 19:25:09 GMT

Hi Thomas;

Thanks, but not an option. We're stuck with the HW we have for a while. I will check the matrix and the driver for the HBA, thanks.

Gregg

Re: Slow server access and Latency errors on ESXi Host 5.1 U3 since migrating to Netapp V3240

asulliva — Tue, 31 Jan 2017 19:32:47 GMT

Have you opened a support case to investigate configuration across your infrastructure?

At a minimum, check to see if there are any log messages on the ONTAP system which happen at the same time as the vSphere messages.

Andrew

Re: Slow server access and Latency errors on ESXi Host 5.1 U3 since migrating to Netapp V3240

NETAPPDOW — Tue, 31 Jan 2017 20:17:58 GMT

We're running NetApp Release 8.2.3P4 7-Mode, but when I go to the IMT, that doesn't show up, just P3. We've been running P4 for about a year now. Not sure why it wouldn't show up.

Re: Slow server access and Latency errors on ESXi Host 5.1 U3 since migrating to Netapp V3240

jferry — Wed, 01 Feb 2017 14:27:50 GMT

ESX 5.1 is EOS. That said, a perfstat and the VMware diagnostic bundle will be needed to find out the root cause. I would recommend opening a case with support after collecting the information.