NSX Host Preparation fails if not enough disk space

Here Im back after some time :)
Today I have fixed failed process of NSX 6.4 Host Preparation on Nested vSAN ESXi hosts in my Lab. Software versions used NSX 6.4.0 Build 7564187 / vSphere 6.5.0.13000 Build 7515524.
I have originally stripped ESXi hosts to minimum possible configuration. For each nested ESXi installation I have used 5GB Disk. For vSAN datastore I have used one 7 GB Disk as Cache Tier and two 10GB disks for Capacity Tier per each nested ESXi host in 3 node vSAN Cluster. As far as vSAN was tested it worked perfectly fine.

Problem appeared when I tried to prepare same nested hosts for NSX. First I have successfully deployed NSX Manager and Controller. Then I initiated Host Preparation for NSX on each nested ESXi. It scanned nested ESXi hosts then proceeded with Install task but didnt proceed with Install agent Task on ESXi hosts (as you can see on picture).

NSX Host Preparation Install agent Task didnt proceed on nested ESXi hosts

In /var/log/esxupdate.log there was this message:
2018-07-25T07:25:35Z esxupdate: 79906: esxupdate: ERROR: vmware.esximage.Errors.LiveInstallationError: ([], "Error in running ['/etc/init.d/netcpad', 'start', 'install']:\nReturn code: 1\nOutput: ERROR: ld.so: object '/lib/libMallocArenaFix.so' from LD_PRELOAD cannot be preloaded: ignored.\nFailed to set memory reservation for netcpa, retrying...

After some troubleshooting + googling for similar error messages I have created fresh new nested ESXi without vSAN. I have created bigger 40GB local disk to be sure there is enough space. And voilà suddenly magically NSX Host Preparation finished successfully.

Successful NSX Host Preparation on fresh new nested ESXi with proper size of local disk

Stary ale pekny dokument ohladne Static Etherchannel pre VMware ESXi :)

Stary dokument ohladne static Etherchannel pre VMware:
http://www.vmware.com/pdf/esx2_NIC_Teaming.pdf

A este jedna relevantna stranka k teme:
http://www.dell.com/support/troubleshooting/ag/en/agdhs1/KCS/KcsArticles/ArticleIframeView?docid=600951&doclang=EN#Issue5

iTop - nastroj pre efektivnu spravu IT

Chcete spravovat infrastrukturu efektivnejsie? Skuste sa pozriet na ITIL nastroj iTop:

http://www.combodo.com/itop

LACP static vs Etherchannel

Dobry clanok ohladne rozdielu medzi LACP a static Etherchannel pre VMware vSphere:

http://wahlnetwork.com/2012/05/09/demystifying-lacp-vs-static-etherchannel-for-vsphere/

Ako nakonfigurovat NPIV

Pozdravujem nadsencov,
dobry clanok ohladne postupu konfiguracie NPIV:

http://wojcieh.net/how-to-configure-n-port-id-virtualization-on-vmware-esxi/
http://thefoglite.com/2012/05/02/n_port-virtualization-with-vsphere/

PowerCLI pre zber dat

Pozdravujem vsetkych,

Zaujimavy tool pre generovanie PowerCLI skriptov pre zber dat z VMware infrastruktur.

http://www.lucd.info/2014/09/02/stats-toolbox/

Nedostupnost iSCSI LUNov v stave iSCSI software iniciatora Path Status Not used

Dnes som riesil problem s nedostupnostou iSCSI LUNov po restarte VMware ESXi. Konektivita vmkernel portu pre software iSCSI iniciator bola v poriadku. Session iSCSI bola nadviazana. Problem bol, ze v nastaveni iSCSI Initiator (vmhba39) --> Network Configuration bol Path Status v stave Not used a tym padom nebolo vidiet LUNy.

Problem som vyriesil nahranim pravidiel Pluggable Storage Architecture (PSA) pre spravu ciest na storage. Tu je command:

esxcli storage core claimrule load

Skript pre kontrolu a odpojenie CDROM na virtualoch

Tu je prakticky PowerCLI skript pre kontrolu stavu pripojenia CDROM virtualizovanych VMs:

Get-VM | Where-Object {$_ | Get-CDDrive |
    Where-Object { $_.ConnectionState.Connected -eq "true"  } } |
    Select-Object Name

Nasledne odpojenie CDROM virtualizovanych VMs cez PowerCLI skrip:

Get-VM | Where-Object {$_ | Get-CDDrive |
    Where-Object { $_.ConnectionState.Connected -eq "true"  } } |
    Get-CDDrive | Set-CDDrive -Connected $false -Confirm:$false

 Postup ako rozbehnut VMware PowerCLI:
http://blogs.vmware.com/PowerCLI/2011/06/back-to-basics-part-1-installing-powercli.html

Ako pracuje Lockdown Mode

Pozdravujem vsetkych priaznivcov, po dlhsom case prispevok. Tentokrat clanky ohladne Lockdown Mode:

Restricting Access to the ESXi Host Console – Revisiting Lockdown Mode
http://blogs.vmware.com/vsphere/2014/03/restricting-access-to-the-esxi-host-console-revisiting-lockdown-mode.html

Exiting Lockdown Mode Can Disable “root” Access (if you remove “root” from the DCUI.Access)
http://blogs.vmware.com/vsphere/2013/01/exiting-lockdown-mode-can-disable-root-access-if-you-remove-root-from-the-dcui-access.html 

Virtual SAN – Maintenance Mode

Pozdravujem po dlhsom case!
Prezentujem link na zaujimavy scenar v ramci novej technologie Virtual SAN.
Ide konkretne o situaciu, ked potrebujeme dat ESXi host do tzv. Maintenance Mode.

 

Zdroj:
http://blogs.vmware.com/vsphere/2013/11/virtual-san-maintenance-mode-monitoring.html

Waiting for vpxd to initialize failed

Po pridaní nového ESXi servera do vCenter som spozoroval, že neviem naštartovať vCenter Appliances, ktoré boli predtým na druhom ESXi funkčné.
Dôvodom zlyhania inicializácie vpxd procesu bol zle nastavený čas na novom ESXi.

Mojich 50 000 IOPS

Pekný výsledok merania IO operácií cez aplikáciu IOMETER. 50 000 IOPS a 200MB/s. Meranie prebehlo vo VM nad Nested virtualizovaným ESXi 5.1. Problém je, že CPU vyťaženie vo VM je takmer 100%, a v reálnom meraní na fyzickom hardware nie je nameraný reálny prenos! :)

Purple Screen Of Death

Pozdravujem,
pokiaľ ešte niekto nevidel crash na VMware ESXi, nech sa páči. :)
Dôvodom je s vysokou pravdepodobnosťou použitie sieťového adaptéra vmxnet3 v nested virtualizovanom VMware ESXi.

Použitie Hyper-threading v NUMA VMware vSphere architektúre

Dobrý článok vysvetlujúci využitie Hyper-threading a NUMA architektúr vo VMware vSphere.

Zdroj:
http://vpivot.com/2010/09/13/optimizing-vsphere-for-hyper-threading/

Žiadny ping medzi nested virtualizovanými klonovanými ESXi? Konflikt MAC adries na vmkernel portoch.

Pozor na problém pri klonovaní nested virtualizovaných ESXi. Klonovaním kopírujete MAC adresu vmkernel portov. To napríklad spôsobí sieťovú nedostupnosť takýchto ESXi medzi sebou.
Riešenie je napríklad regenerovať vmk0 cez ESXi konzolu DCUI.

Prázdna stránka vo VMware Web client 5.1

Pozdravujem,
narazil som na zaujímavý problém s VMware Web Clientom. Nenačítava obsah keď kliknem Edit na vCenter>Manage>Settings>Advanced Settings. Riešenie?

Nasaď si Oracle za 20 minút :)

Nasadzovanie hotových aplikácií do Cloudu.

https://solutionexchange.vmware.com/store/category_groups/application-management

Profile management pre virtualizáciu aplikácíi

Pýtate sa ako riešiť profile management virtualizovaných aplikácií?
Liquidware Labs ProfileUnity je zaujímavé riešenie pre VMware View a VMware ThinApp. Pozrite si video s ukážkou funkcionality virtualizácie profilu pre migráciu z Windows XP do Windows 7:
http://youtu.be/xqLuIqIf67A

Links zo skolenia

Performance of VMware vCenter™ 5.0 in Remote Offices and Branch Offices
http://www.vmware.com/files/pdf/techpaper/VMW-WP-Performance-vCenter.pdf

CPU/MEM Reservation Behavior
Posted by Duncan Epping

http://www.yellow-bricks.com/2010/03/03/cpumem-reservation-behaviour/

Enabling Hot-Add by default? /cc @gabvirtualworld

http://www.yellow-bricks.com/2012/01/16/enabling-hot-add-by-default-cc-gabvirtualworld/

vNUMA: What it is and why it matters

http://cto.vmware.com/vnuma-what-it-is-and-why-it-matters/

vNUMA and vMotion
Posted by Duncan Epping

http://www.yellow-bricks.com/2011/10/28/vnuma-and-vmotion/

Performance Evaluation of HPC Benchmarks on VMware’s ESXi Server

http://labs.vmware.com/download/142/

ACPI Static Resource Affinity Table (SRAT)

http://www.techarp.com/showfreebog.aspx?lang=0&bogno=351

You cannot upgrade a previous version of vMA to vMA 5.1

Vedeli ste že nie je možné urobiť upgrade vMA na verziu 5.1? Zdroj: vSphere Management Assistant Guide vSphere 5.1 http://pubs.vmware.com/vsphere-51/topic/com.vmware.ICbase/PDF/vma_51_guide.pdf