Quantcast
Channel: VMware Communities: Message List - ESXi
Viewing all 28826 articles
Browse latest View live
↧

Re: iSCSI: multiple targets vs. single target

March 11, 2020, 1:03 am
$
0
0

I use two hosts and one Supermicro Server as storage system with open-e v7 for management. There are only SSD on this storage system.

iSCSI target tuning on open-e side to match the vmware iSCSI settings is also done.

 

I know the "Best Practices Guideline" and setup wasn't a issue at all. I already set up Jumbo Frames, Multipathing with two vmkernels and two subnets, Round Robin with IOPS=1 and ofc 10GB ethernet between host and storage.

I'm just not sure what's the way to go since there are 3 Options in my Oppinion:

 

 

1) one LUN - one target: creare multiple datastorages inside vSphere on this LUN

 

2) multiple LUNs according to the needed datastorage no. and connect all of them with one iSCSI target

 

3) multiple LUNs according to the needed datastorage no. and one iSCSI target for each LUN

↧
Search

Re: Esxi volumes not visible

March 11, 2020, 4:38 am
$
0
0

Run df-h and paste the output

 

go to /vmfs/volumes/ and paste the output please.

 

Please provide version of esxi, version of vmfs that is not working.

↧
↧

Re: Black screen of vm in esxi

March 11, 2020, 4:12 am
$
0
0

I have done that but the result is the same.

If I boot localy the same machine with workstation it works. On esxi nope.

↧

Re: How to run newer versions of ESXi on an HP ML350 G6 server?

March 11, 2020, 6:34 am
$
0
0

Ok. That's interesting... I didn't realize that the web-based interface is available with the older versions too... So far in my tinkering I had to install vSphere client in order to manage the server with anything older than 6.7.

 

Are there any feature charts that indicate the differences/improvements of each version over its predecessor?

↧

RVtools Report few tabs are empty.

March 11, 2020, 6:49 am
$
0
0

Hello Fren,

 

I have observed that one of my VC Rvtools report, we are getting few tabs are empty.

 

upto vTools tab info is empty

 

from vRP tab we have the info.but other VC all good. we are facing this issue for only one VC

 

RVtools 3.11 version

 

Please suggest

↧
↧

Re: Can't start VM... missing vmdk?

March 11, 2020, 9:14 am
$
0
0

Here you go, and can't thank you enough!

 

# Disk DescriptorFile

version=1

encoding="UTF-8"

CID=fffffffe

parentCID=ffffffff

isNativeSnapshot="no"

createType="vmfs"

 

# Extent description

RW 419430400 VMFS "Server3-flat.vmdk"

 

# The Disk Data Base

#DDB

 

ddb.adapterType = "lsilogic"

ddb.geometry.cylinders = "26108"

ddb.geometry.heads = "255"

ddb.geometry.sectors = "63"

ddb.longContentID = "0ed700097adc1dd83f441124fffffffe"

ddb.thinProvisioned = "1"

ddb.uuid = "60 00 C2 9b 8d 9e af 58-c1 b4 c3 d2 ae 61 f5 80"

ddb.virtualHWVersion = "13"

↧

Re: Can't start VM... missing vmdk?

March 11, 2020, 9:39 am
$
0
0

LockonComputer , the CID should be CID=37f94e62

Can't check the other aspects right now as not near a lab to check.

 

Bob

↧

Re: NUMA node confusion

March 11, 2020, 9:46 am
$
0
0

Hi

When it comes to NUMA configuration you should consider a lot of things. I am going to go to your configuration directly. when you create a VM with less vCPU and more cores per socket, you had actually created some small domains of resources (you can check this with "Coreinfo" tools from Microsoft Sysinternals or check your vmware.log file and look for VPD to PPD), so as guest os view you have more than 2 NUMA nodes but in your physical environment, you only have 2 NUMA nodes, so some of your data will be reachable from remote memory DIMMs.(depends on your application behavior)

The only reason that you need to create this kind of VM with this configuration is "licensing" or maybe some specific situations, so from the NUMA perspective, I suggest keeping your cores per socket as low as you can (1 is the best) and increase your vCPUs unless you have another reason. If you have some kind of reason for this configuration, you can use "numa.consolidate=false" for your VM.

I hope this could help you

↧
Search

Re: RVtools Report few tabs are empty.

March 11, 2020, 9:50 am
$
0
0

Hi

We had this issue once, and the problem was our account permission. so check your account permission. if it was ok, you can check for your VC VAMI for services and disk info.

 

I hope this could be helpful

↧
↧

Re: Can't start VM... missing vmdk?

March 11, 2020, 9:57 am
$
0
0

IT'S ALIVE!!!!!  OMG!!!!  I owe you a beer or a new car    Can't thank you enough!!!!!!!

 

I'm taking a backup of the server now and then I'll delete the snapshots to recover more space.

 

I have a related question:  seeing as how there is a 'flat' file and a 'delta' file that consume a lot of space, what is the optimal way to manage the space?  I saw somewhere there was an option to flatten or combine disk images (can't find it now).  Sorry for the newbie questions but still learning VMWare.

 

Thanks!

↧

Re: Esxi volumes not visible

March 11, 2020, 10:43 am
$
0
0

Help us help you!

 

  2. Thoroughly describe your situation. Don’t be a lazy poster as there’s no one people hate helping more than that. Include all product names, all versions, and all steps you performed to generate the result. Here are some examples of actual bad questions:

    1. “All our VMs were powered off on weekend and why dont know when and why?”
    2. “Suggest discovery tools for data center migration”
    3. “how to install SRM”
    4. “I need to be able to enable the option to edit hot. vMware vSphere 6.5 does not have the option.”
    6. “Hello Expert, please help to resolve this problem <screenshot>”

 

     Each of these examples is a violation of rules discussed earlier. If you aren’t sure why these are bad questions, start at the top and read again.

How to post effectively on VMTN
https://communities.vmware.com/people/daphnissov/blog/2018/12/05/how-to-ask-for-help-on-tech-forums

↧

Re: RVtools Report few tabs are empty.

March 11, 2020, 11:03 am
$
0
0

Wich user are you using to generate de report?

 

Version or rvtools and version of vcenter server would be great to check compatibility

↧

Re: NUMA node confusion

March 11, 2020, 12:12 pm
$
0
0

This article is written by the VMWare performance team and was updated July of 2019

https://blogs.vmware.com/performance/2017/03/virtual-machine-vcpu-and-vnuma-rightsizing-rules-of-thumb.html

 

It's recommendation is to make every VM have one socket and then just increase cores per socket to reach the required vCPUs. They only list two reasons to vary from this recommendation

  • The number of total vCPUS required exceeds the number of cores on the CPU. For example, the CPU has 10 cores and a VM needs 12 vCPUs. In this case you would need to assign 2 sockets and 6 cores per socket
  • The amount of memory needed by a VM exceeds the amount allocated to one NUMA node

 

None of the VMs I am running fall into either situation, hence all of my VMs run with one socket. Is this article incorrect?

↧
↧

Re: NUMA node confusion

March 11, 2020, 12:15 pm
$
0
0

I think your answer is actually a two-parter.. 

 

1) q.How do you have 4 Nodes showing in ESXCLI when it's a 2-socket host?  You don't specify the processor type; but, given it's a DL380 Gen10, it's entirely likely you're using an Intel Scalable Processor (Haswell or better) and they introduced a new feature called sub-NUMA Clustering.  Think of it like what hyperthreading is to cores, sub-NUMA clustering is to NUMA nodes...  It's a BIOS setting enabled by default in HPE Gen10's when you set PowerMode to Virtualization/HighPerformance.  See here:  Intel® Xeon® Processor Scalable Family Technical Overview | Intel® Software

 

2) q.Why are some VMs different than others regardless the socket/core config?  I suspect the newer auto-vNUMA feature is at play here.  Starting in 6.5, vNUMA is no-longer tied to socket/core configs in the vSphere Client.  See here for more detail:  Virtual Machine vCPU and vNUMA Rightsizing - Rules of Thumb - VMware VROOM! Blog - VMware Blogs

↧

Re: Can't start VM... missing vmdk?

March 11, 2020, 1:59 pm
$
0
0

Good to see that the issue has been fixed.

 

Regarding your question, I'm not sure what exactly you mean with "flatten or combine disk images".

The flat file represents the VMs virtual disk, and the delta file  (sesparse with newer versions) stores store modified blocks if the VM has an active snapshot. According to the files' time stamps, the snapshot was created in August 2018, and grew up to the current size (~25GB). I assume that the one who created that snapshot simply forgot to delete it again, after finishing the work.

Depending on the size of your environment, it may be helpful to either monitor snapshots, and disk space usage, or at least check for this from time to time. A great free tool that I like to use is RVTools, which provides a great overview, and hints on what may be worth looking at.

 

André

↧
Search

Re: Can't start VM... missing vmdk?

March 11, 2020, 3:17 pm
$
0
0

Delete the snapshot. That will merge the content of the delta file into the flat file and then the delta file will be removed.

↧

Re: Black screen of vm in esxi

March 11, 2020, 4:03 pm
$
0
0

Try this:

Copy that P2V converted VM files on a system exists in the ESXi subnet (because you mentioned they are not in same) and then convert it again to a ESXi compatible VM.

↧
↧

Re: NUMA node confusion

March 11, 2020, 5:44 pm
$
0
0

The processor in this host is an Intel Xeon Gold 6142 @2.60GHZ. As I stated in my original post, sub-numa clustering is enabled per best practice giving us 4 NUMA nodes.

 

OsburnM - the article you linked to is the same one I linked to. This article gives best practice for configuring individual VMs in terms of sockets and cores per socket. All of my VMs are configured with 1 socket following the advice in this article

 

This still does not answer my original question. The whole reason to stay within a NUMA node/boundary is to make sure the VM uses local memory and not remote memory. All of my VMs are contained within a single NUMA node but I still have some VMs that are using a considerable amount of remote memory. Here is another screenshot from ESXTOP.

Why is my VM called Ruckus1 getting half of its memory remotely? Ruckus1 is a Linux based server

Why is Camera1 getting 1/3 of its memory remotely? Camera1 is a Windows server

 

Is there something going on at the OS level that explains this?

Perhaps ESXTOP is just not reporting this correctly? Some other factor I am not taking into account?

↧

Re: VMware Remote Console Mouse speed and accuracy

March 11, 2020, 8:06 pm
$
0
0

You need to add a USB controller (USB 2.0) to the guest VM and the mouse will work fine during Setup and before you get a chance to install VMware Tools.

↧

Re: ESXi 6.7 Windows 2016/2019 freeze

March 11, 2020, 10:32 pm
$
0
0

Hello Bernhard,

 

Do your virtual machines have E1000 vNICs configured? If so, try to change it to VMXNET3.

↧
Viewing all 28826 articles
Browse latest View live
Search