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