• This topic has 12 replies, 6 voices, and was last updated October 25, 2021 by Jay L.

New Zerto 9 Error Reporting

  • I just upgraded my Zerto to Version 9.  It is replicating across a private WAN link to another private site.  Both are VMWare 7.0U2.  Before upgrade had no error reporting of anything.  Now I am getting a warning that the target site disk latency at target is 4ms or higher and has occurred 4 times in the last 22 hours.  The disk is report a latency of 0ms.  The WAN connection can sometimes be flakey, so is this an indication of that versus disk latency?  Again no issues with Zerto 8.5U3, just started with version 9.

    We are getting the same message on all of our self protected machines.   I assume due to storage being slightly underpowered.   I have asked for a tweak to disable this as I don’t really care about latency on self protected VPG’s.   Also v9 was pulled due to issues so we may need to wait for an update to be released.

    I rebooted my Target ZVRA and these errors went away.  I have no other errors right now so will have to live with Version 9 as I do not want to rebuild my VPG farm.

    I installed Zerto 9 with the latest release at a different location and same issue.  False Disk Latency reporting for target.  Anyone else seeing this?

    Same issue here, upgraded Zerto from 8.5U2 to 9.0, running vSphere 7.0U2 Last Wednesday (8/4). We have 3 hosts in our DR site and had this warning on 2 of 3 Thursday (8/5). Sunday (8/8) the 3rd host had the warning. We have 2 VPGs that replicate data to another host on the source side and neither of these have the warning. Only the 3 hosts in our DR site.

    I finally got Zerto support to give me a ZVRA Tweak process that turns the High Disk Latency error off.  I think the new 9.0 reporting can’t distinguish between disk latency and an communications delay, so it just calls it a disk latency issue.  My target systems were reporting 0.023ms disk latency, but still reported this error since the target was across a WAN connection.

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