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Luca Dell'Oca Principal Cloud Architect @Veeam
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Virtual To The Core
Virtual To The Core

Virtualization blog, the italian way.

Tag: failover

Tech

Manual failover of keepalived

Luca Dell'Oca, April 23, 2015December 4, 2016

During my tests with keepalived as a balancer for a linux cluster, I was searching for a way to quickly simulate a node failure and to check keepalived was correctly failing over to the other node. Here is a quick and smart way to do it!

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HP StoreVirtual Failover Manager stops working after vSphere 5.0 is upgraded to 5.1

Luca Dell'Oca, October 10, 2013December 4, 2016

Recently at a customer I upgraded a vSphere 5.0 cluster to 5.1. The update itself was quick and smooth, but I had a problem with HP StoreVirtual Failover manager, or FOM for short. The HP StoreVirtual FOM (or LeftHand, if you are nostalgic of the old name) is a small…

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HP StoreVirtual Failover Manager smette di funzionare aggiornando vSphere da 5.0 a 5.1

Luca Dell'Oca, October 10, 2013December 4, 2016

Recentemente da un cliente ho aggiornato un cluster vSphere da 5.0 a 5.1. L’aggiornamento è andato benissimo, ma ho avuto un problema con il Failover Manager di HP StoreVirtual, detto anche FOM. La FOM di HP StoreVirtual (o LeftHand, se siete dei nostalgici del vecchio nome) è una piccola virtual…

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When Veeam HotAdd mode does not works

Luca Dell'Oca, February 21, 2013February 19, 2013

HotAdd is one of the available modes to backup a VM with Veeam, and one of the preferred once when the Veeam proxies are installed as virtual machines themselves. However, there are situations where HotAdd mode does not work, and since it appears to be a frequent question, I decided…

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Quando la modalità HotAdd di Veeam non funziona

Luca Dell'Oca, February 21, 2013December 4, 2016

HotAdd è una delle modalità disponibili in Veeam per fare il backup di una VM, e una delle preferite quando i proxy Veeam sono installati essi stessi come virtual machines. Tuttavia, ci sono alcune situazioni in cui HotAdd non funziona, e dato che pare una domanda ricorrente ho deciso di…

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Balance multiple View Connection Servers using HAProxy

Luca Dell'Oca, January 7, 2013February 13, 2013

In medium and large deployments, you can distribute the load on VMware View Connection Server by adding many of them thanks to the “Replica” role. However, the balance and failover between them is not available directly inside the software. To distribute View clients among them, you need an external balancer….

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Bilanciare numerosi View Connection Servers con HAProxy

Luca Dell'Oca, January 7, 2013December 4, 2016

Quando siamo in presenza di installazioni medio-grandi, è possibile distribuire il carico di lavoro sui VMware View Connection Server aggiungendone di ulteriori grazie al ruolo “Replica”. Tuttavia, il bilanciamento o il failover tra di essi non è direttamente disponibile nel software. Per distribuire i client View tra i vari server,…

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FT e le tastiere USB

Luca Dell'Oca, May 3, 2010December 4, 2016

Giuro che ogni tanto leggere la knowledge base di vmware è meglio di un fumetto! Ho trovato questa cosa e non ci volevo credere: se avete un cluster FT e utilizzate processori Intel Xeon 3400 Series (Lynnfield) and Intel Xeon 6500 and 7500 Series (Nehalem-EX), potrebbe capitarvi di avere tantissimi…

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