Problem with my update

[long2511mdd]

I am trying to update my ubuntu but I do not know why I receive this mass:

"W: Failed to fetch http://az-1.hpcloud.mirror.websitede...al/Release.gpg Something wicked happened resolving 'az-1.hpcloud.mirror.websitedevops.com:http' (-5 - No address associated with hostname)

W: Failed to fetch http://az-1.hpcloud.mirror.websitede...es/Release.gpg Something wicked happened resolving 'az-1.hpcloud.mirror.websitedevops.com:http' (-5 - No address associated with hostname)

W: Failed to fetch http://az-1.hpcloud.mirror.websitede...ts/Release.gpg Something wicked happened resolving 'az-1.hpcloud.mirror.websitedevops.com:http' (-5 - No address associated with hostname)

W: Failed to fetch http://az-1.hpcloud.mirror.websitede...ty/Release.gpg Something wicked happened resolving 'az-1.hpcloud.mirror.websitedevops.com:http' (-5 - No address associated with hostname)

E: Some index files failed to download. They have been ignored, or old ones used instead.
"

This is my sources.list:
# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release amd64 (20121017.5)]/ quantal main restricted
# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release amd64 (20121017.5)]/ quantal main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal main restricted
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-updates main restricted
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal universe
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal universe
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-updates universe
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal multiverse
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal multiverse
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-updates multiverse
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-backports main restricted universe multiverse

deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-security main restricted
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-security main restricted
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-security universe
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-security universe
deb http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-security multiverse
deb-src http://az-1.hpcloud.mirror.websitedevops.com/ubuntu/ quantal-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu quantal partner
# deb-src http://archive.canonical.com/ubuntu quantal partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu quantal main
deb-src http://extras.ubuntu.com/ubuntu quantal main

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.


## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu quantal partner
# deb-src http://archive.canonical.com/ubuntu quantal partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.


What I should do now?? Please help

[ibjsb4]

HP has graciously donated 3 months of computing time to Ubuntu Developers! This is a great contribution so we need to ensure we use it to it's full potential.
This is a pilot/beta testing to give HP feedback on their Ubuntu powered cloud, as well as give Ubuntu developers a chance to familiarize themselves with the cloud, juju, and all the associated tools.

https://wiki.ubuntu.com/HPCloud

Why are you on this?

[long2511mdd]

I go to "Software Resources" and find best server, that's what happened next after I update

[ibjsb4]

Go back to software sources and choose the "main server" or choose one from you country either using software source list or this one:

https://launchpad.net/ubuntu/+archivemirrors