Seraphin Label

Gas Pump Meter

I saw this guy testing the meters on the gas pumps today and asked him a few questions. You’d be happy to know about this:

Q1) Does it really make any difference if you pump gas slowly or quickly? I’ve heard you get more gas if you are not in a hurry.
A1) Yes. The gas pumps are not tuned for slow delivery levels and will “leak” a little extra gas when run at the minimum delivery rate.

Q2) Does gas actually compress at night when it’s cold?
A2) Yes. See the Seraphin picture for the actual math formula to compute the change in volume based on temperature. For best results – pump your gas at night or early morning when the ground temp is lowest.

#openstack training and certification #jobs demand exceed supply

PistonCloud Training Available
Rackspace Certification Program
Heat RefStack Reference Architecture

http://www.rackspace.com/blog/solving-the-openstack-talent-gap/
We’re in trouble. We’re facing an unprecedented shortage of IT talent in cloud, and in this case, specifically within OpenStack.

http://www.pistoncloud.com/training/deploying-openstack-for-cloud-administrators/
Full price of the course is $1,995.
Piston Cloud has launched a unique training program aimed at helping organizations get off the ground with OpenStack. Our next class, “Deploying OpenStack for Cloud Administrators,” is scheduled for May 8th and 9th here in San Francisco.

The course is ideal for IT managers, VMware administrators, and cloud architects, and features a blend of keynotes and hands-on lab work. Attendees will learn directly from the seasoned engineers who built Piston Enterprise OpenStack, and leave with a deep and comprehensive understanding of the technology, as well as many insider tips and tricks to get their own private cloud deployment off the ground. The two-day course includes:

DAY 1
Keynote from Piston Cloud CTO Joshua McKenty: A History of Cloud Computing
Session: Opinionated Architecture and the True Cloud
Lab: Installation and Configuration of an OpenStack Private Cloud
Lab: An Introduction to Account Creation and Administration
Session: Introduction to OpenStack Compute (Nova)
Lab: Hands-on with Instance Management and Migration
Wrap-up and Q&A
Dinner and an evening outing
DAY 2
Session: An Introduction to Image Management (Glance)
Lab: Working with Images
Lab: Hands-on with OpenStack Block Storage (Cinder)
Lab: OpenStack Object Storage (Swift)
Lab: Enterprise Features
Closing Wrap-up and Q&A

RackSpace Certification
http://training.rackspace.com/certification/rackspace-certified-technician-for-openstack/1/
Rackspace Certified Technician for OpenStack
IT Professionals earn this certification after demonstrating the skills necessary to utilize and operate an OpenStack cloud.

Exam Objectives

Create instances from images, snapshots and volumes
Inject user data and files into an instance
Connect to instances via SSH and VNC
Inject a keypair into an instance and access the instance with that keypair
Set metadata on an instance
Create an instance snapshot
Pause, suspend, stop, rescue, resize, rebuild, reboot an instance
Manage volumes and volume snapshots
Manage images
Manage security groups
Assign IP Addresses to an instance
View Object Storage account information
Set Object Storage account metadata
Manage Object Storage containers
Set Object Storage metadata
Set Object Storage access control lists
Set Object Storage container sync
Set Object Storage container versioning
Set Object Storage static web
Upload, list, download and delete objects
Create Temporary URL’s
Create form posts
List Identity Service catalog
Get auth tokens
Discover keystone endpoints

Reference Architecture – #refstack http://openstacksummitapril2013.sched.org/event/33821a13f4bf25259ec9e77bba9b1e51#.UXArzCtATEA
The OpenStack project does an insane amount of automated testing as part of the development cycle, but up until now there has been no corresponding testing that can be performed against running public clouds. While we want to do that, before we can test other people’s clouds for compatibility, we need to be able to express what it is they need to be compatible with.

It turns out that OpenStack is rich enough now to express a reference implementation in terms of itself, using heat templates. Some people think that’s a great end to itself – deploy your OpenStack using OpenStack – but others are not quite as sure about that yet, and have significant investment in things like chef, puppet, crowbar or cobbler. To meet the needs of expressing a useful set of testable information and not leave that specification as an academic exercise, or as the recipient of more tool wars – we’ve come up with a plan to have the heat templates describe the state, the “what” if you will, and to describe a clear boundary line across which metadata is passed to the tools on the individual nodes that will turn that metadata into configuration.

Add a Backup Disk to Linux VM ext4 Centos 5

Edit the VM Settings
add the disk to the VM
yum install e4fsprogs
fdisk -l
Disk /dev/sdb: 60.1 GB, 60129542144 bytes
Disk /dev/sdb doesn’t contain a valid partition table
fdisk /dev/sdb
n – create new partition
2 – use partition number 2
w – write partition table
mkdir /backup
/sbin/mkfs.ext4 -L /backup /dev/sdb2
mount -t ext4 /dev/sdb2 /backup
vi /etc/fstab
Add the following line to etc/fstab
/dev/sdb2 /backup ext4 defaults 1 2
change the zimbra backups to go to new directory
su zimbra –
zmprov gacf zimbraBackupTarget
zimbraBackupTarget: /opt/zimbra/backup
zmprov mcf zimbraBackupTarget /backup
zmprov gacf zimbraBackupTarget
zimbraBackupTarget: /backup

Here’s the situation…

You have a machine and you want to test out openstack. You can provision and run windows VMs with an Ubuntu server acting as a hypervisor. Here are some of the ingredients you will need along with some instructions and tips. This is a work in progress so it’s not yet complete.

Ingredients:

• X86 hardware box with VT capabilities
• lots of RAM – 4GB or more
• fast disk – SSD for running OS and VMs and slower SATA for storing templates and media
• Ubuntu 12 server
• Devstack single machine guide – http://devstack.org/guides/single-machine.html
• review Openstack architecture – http://ken.pepple.info/openstack/2012/09/25/openstack-folsom-architecture/
• try out a cloud instance of openstack – https://trystack.org
• how to disable network manager on ubuntu – http://www.sitepoint.com/ubuntu-12-04-lts-precise-pangolin-networking-tips-and-tricks/
• how to set static ip on ubuntu – http://www.jonathanmoeller.com/screed/?p=2961
• how to setup linux bridge – http://tech.paulcz.net/2012/12/configuring-kvm-openvswitch-for-ubuntu.html
• how to create a windows VM on KVM – http://docs.openstack.org/trunk/openstack-compute/admin/content/creating-a-windows-image.html
• how to provision windows VMs with OpenStack – http://www.cloudbase.it/cloud-init-for-windows-instances/
• participate in the weekly hyper-v nova meetings – http://wiki.openstack.org/Hyper-V#Communication

To temporarily configure an IP address, you can use the ifconfig command in the following manner. Just modify the IP address and subnet mask to match your network requirements.

sudo ifconfig eth0 10.0.0.100 netmask 255.255.255.0

To verify the IP address configuration of eth0, you can use the ifconfig command in the following manner.

ifconfig eth0

eth0 Link encap:Ethernet HWaddr 00:15:c5:4a:16:5a

inet addr:10.0.0.100 Bcast:10.0.0.255 Mask:255.255.255.0

inet6 addr: fe80::215:c5ff:fe4a:165a/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:466475604 errors:0 dropped:0 overruns:0 frame:0

TX packets:403172654 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:2574778386 (2.5 GB) TX bytes:1618367329 (1.6 GB)

Interrupt:16

To configure a default gateway, you can use the route command in the following manner. Modify the default gateway address to match your network requirements.

sudo route add default gw 10.0.0.1 eth0

To verify your default gateway configuration, you can use the route command in the following manner.

route -n

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

10.0.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0

0.0.0.0 10.0.0.1 0.0.0.0 UG 0 0 0 eth0

If you require DNS for your temporary network configuration, you can add DNS server IP addresses in the file /etc/resolv.conf. The example below shows how to enter two DNS servers to /etc/resolv.conf, which should be changed to servers appropriate for your network. A more lengthy description of DNS client configuration is in a following section.

nameserver 8.8.8.8

nameserver 8.8.4.4

If you no longer need this configuration and wish to purge all IP configuration from an interface, you can use the ip command with the flush option as shown below.

ip addr flush eth0

[Note]

Flushing the IP configuration using the ip command does not clear the contents of /etc/resolv.conf. You must remove or modify those entries manually.

via Network Configuration.

Question:

Someone sent me a connection request saying they know me or work with me but I’m pretty sure they don’t. These guys shouldn’t be mis-representing them selves on line. It lowers the trust we have in “the system”. What can I do?

Answers:

• Use the Help Center link in the lower left of your screen to contact customer service.
• More serious messages that might be illegal should be emailed to abuse@linkedin.com.
  http://help.linkedin.com/app/answers/detail/a_id/146
• If it’s an invitation you can sign in to linkedin, click on the response “I Don’t Know this person”.
  Once someone has received 5 IDKs, the account is restricted
• My favorite method is to click the report spam button to the right of the message in your inbox.
  You do have to sign in to linkedin to do this. See the picture on the right as an example.

Standard instances offer a number of virtual server types. Select the size that’s right for you based on the amount of memory, number of virtual cores, and local storage required. Although you won’t be billed during the beta I imagine once they do stop billing you the choice you make here could have an impact on your pocketbook.