Live Migration Using Shared Storage In Different Networks



I am building a KVM cluster that needs VM live migration.

My shared storage as well as the KVM hosts will be running CentOS.

Because 10 Gbps Ethernet switches are very expensive at the moment I will connect the KVM hosts to the storage by cross-over cables and create private networks for each connection ( and

The following diagram shows the topology

Management Management Management VLAN VLAN VLAN | | | +----+-----+ 10 Gbps +----+----+ 10 Gbps +----+-----+ | KVM Host |-----------| Storage |-----------| KVM Host | +----+-----+ +----+----+ +----+-----+ | | | Public Public Public VLAN VLAN VLAN

My question is: will…

CentOS-Virt 2 hours ago 0 Answer

Ntpd New Version


Hi All, Currently CentOS site contains the below version of ntpd. ntp-4.2.6p5-3.el6.CentOS.x86_64.rpm :- 16 mar 2015.

Does anybody have any information about when the new version of ntpd is expected to release containing new vulnerabilities fixes?

Thanks Vijendra.

CentOS 2 hours ago 1 Answer

Missing Bnx2x Firmware Files In Xen4CentOS CentOS6 Kernel 3.18.12-11


Hi folks

As mentioned in the subject, kernel-3.18.12-11 is missing firmware files required to run Broadcom/Qlogic network cards, driven by bnx2x driver. While in the source-rpm, there is a bnx2/bnx2x firmware tgz being applied during the rpm build, along with a patch adding these firmware files to firmware/Makefile, neither the tgz nor the patch contain the required firmware files. In 3.18, the driver bumped to version 1.710.51-0, requiring the following firmware files/versions to work:

firmware: bnx2x/bnx2x-e2- firmware: bnx2x/bnx2x-e1h- firmware: bnx2x/bnx2x-e1-

I helped myself by either copying the required firmware-files to the target-machines' /lib/firmware/bnx2x dir and ultimately by adding the files to the source-rpm…

CentOS-Virt 21 hours ago 0 Answer

7.1 Install With Areca Arc-1224


I must be doing something horribly wrong and I hope somebody can help.

The Areca arc-1224 is not supported by the Areca driver included driver in 7.1 so I have to supply that when starting the install. Documentation provided by Areca and in the Red Hat install guide say the same thing, put the driver on an accessible medium then append inst.dd on the boot command, choose the driver and now the drives show up. So far so good.

There's already a possible glitch, however. The USB memory stick is mounted as sda1, shifting the hard drives off by one letter.

So I…

CentOS 21 hours ago 7 Answer

OT Advantage Of Running DNS Server?


As others have said, it depends on your circumstances and what you want to achieve. In my case I run dnsmasq on my home network, configured to use my ISP's DNS server as its upstream. For me the advantages are that it allows me to address connected devices by name and to see at a glance what devices are connected.

CentOS 23 hours ago 1 Answer

Get Ride Of Initial Screen On CentOS 7


Through kickstart I setup everything I need.

On CentOS 7 I still get the "welcome" screen followed by a couple more then your ready to start using CentOS

how do I get Rid of those series of screens ?



CentOS 3 days ago 2 Answer

CentOS-announce Digest, Vol 125, Issue 1


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Today's Topics:

1. CESA-2015:1197 Moderate CentOS 5 openssl Security Update (Johnny Hughes) 2. CEBA-2015:1205 CentOS 6 cluster BugFix Update (Johnny Hughes)


CentOS-Announce 3 days ago 0 Answer

Dual-booting <- Installing Cents Os Server 7.0


Chris Murphy wrote:

In that case, wouldn't it be more precise to say: CentOS-7 doesn't support dual boot if you are using LVM? It seems to me to work reasonably well with ext4. Does it work with LVM if you have a separate ext4 /boot partition?

CentOS 3 days ago 1 Answer