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Category Archives: VMware
VMware and Windows poor TCP performance
I have had a strange issue lately with Windows servers on VMware vSphere 5.1 hosts. Throughput of TCP connections between some virtual machines were very very slow, barely 10 mbit/s . The behavior was easily reproducible : just start an … Continue reading
Posted in Computer, Microsoft, Virtualization, VMware
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VMware vCSA 5.1 password expiration
A few months ago, I was unable to login on my vCSA. At that time, I thought it ws a glitch, I rebooted (didn’t fix the issue) and changed the password of the users, which fixed the issue. Recently, I … Continue reading
Posted in Computer, Linux, Virtualization, VMware
Tagged security, suse, vcenter, vcsa
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LSI Megaraid Storage Manager and VMware ESXi
I had to configure a bunch of ESXi 5.1 servers with LSI 9240-4i hardware RAID controllers the other day. This RAID controller is perfectly supported in ESXi 5.1 but it lacks the monitoring features. To have these, you need to … Continue reading
Posted in Computer, Networking, Virtualization, VMware
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Don’t use SQL Server 2012 with VMware vCenter and modules yet
Update: I just saw that since April 25th, SQL Server 2012 and Windows Server 2012 are supported by VMware vCenter 5.1U1 . All information is available here : blogs.vmware.com/vsphere/2013/04/vmware-vcenter-server-5-1-update-1-released.html Original November 21th 2012: While it is working with the SSO … Continue reading
Posted in Computer, Microsoft, Virtualization, VMware
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vSphere NIC teaming, Cisco router and HP Procurve switches
So, like me, you want to have redundancy for your virtual machine network. For my lab setup, I use a refurbished Cisco router 3825 with two gigabit interfaces, two Procurve 2810-24G and a small server with 4 gigabit interfaces for … Continue reading
Posted in Computer, Networking, Virtualization, VMware
Tagged cisco, esxi, etherchannel, failover, hp, lacp, load balancing, network, portchannel, procurve, redundancy, supermicro, teaming, trunk, vmware, vsphere
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vSphere CPU performance monitoring
Vos machines virtuelles sont lentes, vous pensez que le CPU n’est pas en cause parce que vous avez une utilisation faible des pCPU ? Regardez-y à deux fois, il se pourrait que vos VM attendent du pCPU disponible! Pour vérifier … Continue reading
Posted in Computer, Virtualization, VMware
Tagged cpu, monitoring, performance, ready, vcenter, virtualization, vmware, vsphere
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VMware : migration de Windows
Yo. Si vous voulez migrer des Windows vers une VM VMware, vous rencontrerez sans doute le fameux BSOD 0x7b. Le problème vient du fait que Windows n’a pas les infos pour gérer le disque. Pour aider à la résolution du … Continue reading
Posted in Computer, Microsoft, Virtualization, VMware
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VMware : bugs AutoDeploy
Il y a quelques mois, j’ai dû installer ESXi sur des serveurs blades sans contrôleur RAID supporté par VMware. J’ai donc naturellement emprunté le chemin d’AutoDeploy. J’ai testé la méthode sur un blade, je l’ai configuré comme il faut (vDS, … Continue reading
Posted in Virtualization, VMware
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