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 https://www.virtual-allan.com/category/hpe/hpe-3par-storeserv, 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: dk.pool.ntp.org, 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 […]