Re: VMotion as failover solution
From: LS Cheng <exriscer_at_gmail.com>
Date: Wed, 14 Dec 2011 07:32:30 +0100
Message-ID: <CAJ2-Qb9iwSJS7KVOLX8ZRyTSYPx+geFX7bxirQuq+bCTLeuRjQ_at_mail.gmail.com>
Hi
Thanks for sgarng the experience.
Date: Wed, 14 Dec 2011 07:32:30 +0100
Message-ID: <CAJ2-Qb9iwSJS7KVOLX8ZRyTSYPx+geFX7bxirQuq+bCTLeuRjQ_at_mail.gmail.com>
Hi
Thanks for sgarng the experience.
So far I see two points with vMotion:
- *Hardware failure such as server brown out or network problems, automatic failover is possible*
- *Database/instance failure there is no automatic failover since VMWare does not detect application failures*
Am I correct?
TIA
-- LSC On Tue, Dec 13, 2011 at 6:45 PM, Allen, Brandon <Brandon.Allen_at_oneneck.com>wrote:Received on Wed Dec 14 2011 - 00:32:30 CST
> We are using VMware (with VMotion) to provide HA for a cluster of Oracle
> databases and application servers running on Linux and it works very well,
> but Paul is right that it doesn't provide automatic failover. This
> environment can tolerate the few minutes of downtime that would be required
> to restart the virtual host on another physical host and then have users
> reconnect.
>
> I just skimmed the document Paul linked to below and apparently they offer
> a higher level of HA called "VMWare Fault Tolerance" that will provide
> faster, automated failover functionality but I don't have any experience
> with that.
>
> Regards,
> Brandon
>
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