Citrix Netscaler VPX and vMotion Problems

A couple of my Colleague, Claus Andersen and Jørgen Rosenkvist Pedersen have had som customers that have had problem with Citrix NetScaler VPX and HPE Blade C7000 with virtual connects. The problem may also exist in other types of hardware After vMotion of the Citrix NetScaler VPX from one blade to another, one of the network ports in the destination […]

HPE StoreServ/3Par iSCSI high latency

I have a customer who has a new HPE StoreServ 8200 All-Flash (Formerly HP/3Par), efter the installation I noticed that the storage had a high latency for a All Flash storage array,  So I was talking with my colleague who did the installation of the HPE StoreServ installation if there was any problem with the Storage Array, […]

HP Smart Array p440ar and vSphere 6.0 patches

I had a customer/colleague that was upgrading there HP DL380p Gen9 server with local datastores on a HP Smart Array p440ar, with the new patches from VMware, they was doing this manually, from command line. After a reboot the local storage was not accessible, and the Controller was not visible any more. The problem is that the new patches […]

HP 3PAR StoreServ VMware Best Practice part 2

I have early blogged about that HP has changed there Best Practice for 3PAR StoreServ, and there i gave the command for changing this on every server, This is nok efficient if you have alot of hosts, so here is the PowerCLI way for changing this on multiple hosts. If you are not using SIOC, then […]

ESXi and Domain Controller HP BladeCenter time with NTP and time drift

I had a customer that just virtualized there last domain controller, this was the PDC, and this was configurered to use NTP:, the same was the case for the ESXi hosts. But for some reason the time was drifting about 3-6 minutes every day. After some investigation where we could see that syncing the domain  controller manuelly […]

HP 3PAR StoreServ and VMware vSphere 5 Best Practice

HP has changed there best practice for using there 3PAR StoreServ Storage systems when using Round Robin multi-pathing policy.  The old recommandation was to use IOPS=100, and this has changed to IOPS=1. so for setting this you should use the following. 3PAR runninng Persona 6: esxcli storage nmp satp rule add -s "VMW_SATP_DEFAULT_AA" -P "VMW_PSP_RR" -O iops=1 –c […]