merge fix
This commit is contained in:
Matthew Mosesohn
parent
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@ -12,15 +12,15 @@ Other Questions
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**[A]** We are fully committed to providing our customers with working and
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stable bits and pieces in order to make successful OpenStack deployments.
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Please note that we do not distribute our own version of OpenStack; we rather
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provide a plain vanilla distribution. As such, there is no vendor lock-in.
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For convenience, our repository maintains the history of OpenStack packages
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certified to work with our Puppet manifests.
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provide a plain vanilla distribution. Put simply, there is no vendor lock-in
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with Fuel. For your convenience, we maintain repositories containing a
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history of OpenStack packages certified to work with our Puppet manifests.
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The advantage of this approach is that you can install any OpenStack version
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you want. If you are running Essex, just use the Puppet manifests which
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reference OpenStack packages for Essex from our repository. With each new
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release we add new OpenStack packages to our repository and created a
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separate branch with the Puppet manifests (which, in turn, reference these
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packages) corresponding to each release. With EPEL this would not be
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possible, as that repository only keeps the latest version for OpenStack
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packages.
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you want (with possible custom big fixes). Even if you are running Essex,
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just use the Puppet manifests which reference OpenStack packages for Essex
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from our repository. With each new release we add new OpenStack packages to
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our repository and create a new branch with Puppet manifests (which, in
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turn, reference these packages) corresponding to each release. With EPEL
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this would not be possible, as that repository only keeps the latest version
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for OpenStack packages.
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@ -14,16 +14,16 @@ Sizing Hardware for Production Deployment
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One of the first questions people ask when planning an OpenStack deployment is
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"what kind of hardware do I need?" There is no such thing as a one-size-fits-all
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answer, but there are straightforward rules to selecting appropriate hardware
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that will suit your needs. The Golden Rule, however, is to always accommodate
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for growth. With the potential for growth accounted for, you can move on to the
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actual hardware needs.
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that will suit your needs. The Golden Rule, however, is to always plan
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for growth. With the potential for growth in your design, you can move onto
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your actual hardware needs.
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Many factors contribute to selecting hardware for an OpenStack cluster --
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`contact Mirantis <http://www.mirantis.com/contact/>`_ for information on your
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specific requirements -- but in general, you will want to consider the following
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factors:
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* Processing
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* Processing power
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* Memory
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* Storage
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* Networking
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@ -31,8 +31,8 @@ factors:
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Your needs in each of these areas are going to determine your overall hardware
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requirements.
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Processing
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----------
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Processing Power
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----------------
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In order to calculate how much processing power you need to acquire you will
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need to determine the number of VMs your cloud will support. You must also
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@ -56,7 +56,7 @@ density" of 17 VMs per server (102 VMs / 6 servers).
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This process also accommodates growth since you now know what a single server
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using this CPU configuration can support. You can add new servers accounting
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for 17 VMs each as needed without having to re-calculate.
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for 17 VMs each as needed without needing to re-calculate.
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You will also need to take into account the following:
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@ -69,34 +69,35 @@ Memory
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Continuing to use the example from the previous section, we need to determine
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how much RAM will be required to support 17 VMs per server. Let's assume that
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you need an average of 4 GBs of RAM per VM with dynamic allocation for up to
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12GBs for each VM. Calculating that all VMs will be using 12 GBs of RAM requires
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that each server have 204 GBs of available RAM.
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you need an average of 4 GB of RAM per VM with dynamic allocation for up to
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12 GB for each VM. Calculating that all VMs will be using 12 GB of RAM requires
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that each server have 204 GB of available RAM.
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You must also consider that the node itself needs sufficient RAM to accommodate
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core OS operations as well as RAM for each VM container (not the RAM allocated
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to each VM, but the memory the core OS uses to run the VM). The node's OS must
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run it's own operations, schedule processes, allocate dynamic resources, and
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handle network operations, so giving the node itself at least 16 GBs or more RAM
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is not unreasonable.
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core OS operations as well as the RAM necessary for each VM container (not the
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RAM allocated to each VM, but the memory the core OS uses to run the VM). The
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node's OS must run it's own operations, schedule processes, allocate dynamic
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resources, and handle network operations, so giving the node itself at least
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16 GB or more available RAM is within reason.
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Considering that the RAM we would consider for servers comes in 4 GB, 8 GB, 16 GB
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and 32 GB sticks, we would need a total of 256 GBs of RAM installed per server.
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and 32 GB sticks, we would need a total of 256 GB of RAM installed per server.
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For an average 2-CPU socket server board you get 16-24 RAM slots. To have
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256 GBs installed you would need sixteen 16 GB sticks of RAM to satisfy your RAM
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needs for up to 17 VMs requiring dynamic allocation up to 12 GBs and to support
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256 GB installed you would need sixteen 16 GB sticks of RAM to satisfy your RAM
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needs for up to 17 VMs requiring dynamic allocation up to 12 GB and to support
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all core OS requirements.
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You can adjust this calculation based on your needs.
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You can adjust this calculation based on your needs.
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Storage Space
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-------------
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When it comes to disk space there are several types that you need to consider:
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With regards to disk requirements, there are several types of storage that
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you need to consider:
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* Ephemeral (the local drive space for a VM)
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* Persistent (the remote volumes that can be attached to a VM)
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* Object Storage (such as images or other objects)
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* Ephemeral (local disk for a VM)
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* Persistent (remote volumes which can be attached to a VM)
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* Object Storage (such as images, documents, or other objects)
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As far as local drive space that must reside on the compute nodes, in our
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example of 100 VMs we make the following assumptions:
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@ -108,19 +109,19 @@ example of 100 VMs we make the following assumptions:
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Returning to our already established example, we need to figure out how much
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storage to install per server. This storage will service the 17 VMs per server.
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If we are assuming 50 GBs of storage for each VMs drive container, then we would
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need to install 2.5 TBs of storage on the server. Since most servers have
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anywhere from 4 to 32 2.5" drive slots or 2 to 12 3.5" drive slots, depending on
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If we are assuming 50 GB of storage for each VM's drive container, then we
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would need to outfit 2.5 TB of storage on the server. Since most servers have
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anywhere from 4 to 32 2.5" disk bays or 2 to 12 3.5" disk bays, depending on
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server form factor (i.e., 2U vs. 4U), you will need to consider how the storage
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will be impacted by the intended use.
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If storage impact is not expected to be significant, then you may consider using
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unified storage. For this example a single 3 TB drive would provide more than
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enough storage for seventeen 150 GB VMs. If speed is really not an issue, you might even
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consider installing two or three 3 TB drives and configure a RAID-1 or RAID-5
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for redundancy. If speed is critical, however, you will likely want to have a
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single hardware drive for each VM. In this case you would likely look at a 3U
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form factor with 24-slots.
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If the storage impact is not expected to be significant, then you may consider
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using unified storage. For this example, a single 3 TB drive would provide
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more than enough storage for seventeen 150 GB VMs. If speed is not a major
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concern an issue, you may even consider installing two or three 3 TB drives and
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configuring a RAID-1 or RAID-5 setup for redundancy. If speed is critical,
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however, you will likely want to have a single physical disk for each VM. In
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this case you would likely look at a 3U form factor with 24 disk bays.
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Don't forget that you will also need drive space for the node itself, and don't
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forget to order the correct backplane that supports the drive configuration
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@ -131,7 +132,7 @@ it critical, a single server would need 18 drives, most likely 2.5" 15,000 RPM
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Throughput
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++++++++++
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As far as throughput, that's going to depend on what kind of storage you choose.
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Regarding throughput, it depends on what kind of storage you choose.
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In general, you calculate IOPS based on the packing density (drive IOPS * drives
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in the server / VMs per server), but the actual drive IOPS will depend on the
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drive technology you choose. For example:
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@ -209,20 +210,19 @@ drives begin to fill up. That calculates to 200 TB in our example. So how do
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you put that together? If you were to use 3 TB 3.5" drives, you could use a 12
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drive storage frame, with 6 servers hosting 36 TB each (for a total of 216 TB).
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You could also use a 36 drive storage frame, with just 2 servers hosting 108 TB
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each, but its not recommended due to the high cost of failure to replication
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each, but its not recommended due to the high cost of failed replication
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and capacity issues.
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Networking
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----------
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Perhaps the most complex part of designing an OpenStack cluster is the
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networking.
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Perhaps the most complex part of designing an OpenStack cluster is networking.
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An OpenStack cluster can involve multiple networks even beyond the Public,
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Private, and Internal networks. Your cluster may involve tenant networks,
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storage networks, multiple tenant private networks, and so on. Many of these
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will be VLANs, and all of them will need to be planned out in advance to avoid
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configuration issues.
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An OpenStack cluster can involve multiple networks even beyond the required
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Public, Private, and Internal networks. Your cluster may involve tenant
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networks, storage networks, multiple tenant private networks, and so on. Many
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of these will be VLANs, and all of them will need to be planned out in advance
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to avoid configuration issues.
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In terms of the example network, consider these assumptions:
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@ -249,7 +249,7 @@ that you have 48 x 1 Gb links down, but 4 x 10 Gb links up. Do the same thing wi
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resulting in oversubscription.
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Like many other issues in OpenStack, you can avoid this problem to a great
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extent with careful planning. Problems only arise when you are moving between
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extent with sensible planning. Problems only arise when you are moving between
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racks, so plan to create "pods", each of which includes both storage and
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compute nodes. Generally, a pod is the size of a non-oversubscribed L2 domain.
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@ -264,7 +264,7 @@ In this example, you are looking at:
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* Optional Cluster Management switch, plus a second for HA
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Because your network will in all likelihood grow, it's best to choose 48 port
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switches. Also, as your network grows, you will need to consider uplinks and
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switches. Also, as your network expands, you will need to consider uplinks and
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aggregation switches.
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Summary
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@ -281,4 +281,4 @@ from Dell for compute nodes include:
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You may also want to consider systems from HP (http://www.hp.com/servers) or
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from a smaller systems builder like Aberdeen, a manufacturer that specializes
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in powerful, low-cost systems and storage servers (http://www.aberdeeninc.com).
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in powerful, low-cost systems and storage servers (http://www.aberdeeninc.com).
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@ -11,7 +11,7 @@ How Fuel Works
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Fuel is a ready-to-install collection of the packages and scripts you need
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to create a robust, configurable, vendor-independent OpenStack cloud in your
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own environment. As of Fuel 3.1, Fuel Library and Fuel Web have been merged
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own environment. Since Fuel 3.1, Fuel Library and Fuel Web have been merged
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into a single toolbox with options to use the UI or CLI for management.
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A single OpenStack cloud consists of packages from many different open source
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@ -27,33 +27,33 @@ OpenStack-based infrastructure in your own environment.
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.. image:: /_images/FuelSimpleDiagram.jpg
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:align: center
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Fuel works on a simple premise. Rather than installing each of the
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components that make up OpenStack directly, you instead use a configuration
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management system like Puppet to create scripts that can provide a
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configurable, reproducible, sharable installation process.
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Fuel works by using a simple approach. Rather than installing each of the
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components that make up OpenStack directly, it instead uses a configuration
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management system (Puppet) to compile a set of instructions that can provide a
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configurable, reproducible, and sharable installation process.
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In practice, Fuel works as follows:
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1. First, set up Fuel Master Node using the ISO. This process only needs to
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1. First, set up Fuel Master node using the ISO. This process only needs to
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be completed once per installation.
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2. Next, discover your virtual or physical nodes and configure your
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OpenStack cluster using the Fuel UI.
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3. Finally, deploy your OpenStack cluster on discovered nodes. Fuel will
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perform all deployment magic for you by applying pre-configured and
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perform all deployment steps for you by applying pre-configured and
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pre-integrated Puppet manifests via Astute orchestration engine.
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Fuel is designed to enable you to maintain your cluster while giving you the
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flexibility to adapt it to your own configuration.
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flexibility to adapt it to your own business needs and scale.
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.. image:: /_images/how-it-works_svg.jpg
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:align: center
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Fuel comes with several pre-defined deployment configurations, some of them
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include additional configuration options that allow you to adapt OpenStack
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deployment to your environment.
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Fuel comes with several pre-defined deployment configurations, plus
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additional options that allow you to adapt your OpenStack deployment to your
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environment.
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Fuel UI integrates all of the deployments scripts into a unified,
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Web-based Graphical User Interface that walks administrators through the
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process of installing and configuring a fully functional OpenStack environment.
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Fuel UI integrates all of the deployments scripts into a unified, web-based
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interface that walks administrators through the process of installing and
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configuring a fully functional OpenStack environment.
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@ -11,20 +11,20 @@ Deployment Configurations Provided By Fuel
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One of the advantages of Fuel is that it comes with a number of pre-built
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deployment configurations that you can use to quickly build your own
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OpenStack cloud infrastructure. These are well-specified configurations of
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OpenStack and its constituent components that are expertly tailored to one
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or more common cloud use cases. Fuel provides the ability to create the
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following cluster types without requiring extensive customization:
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OpenStack cloud infrastructure. These are widely accepted configurations of
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OpenStack, with its constituent components expertly tailored to serve
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multipurpose cloud use cases. Fuel provides the ability to create the
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following cluster types directly out of the box:
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**Simple (non-HA)**: The Simple (non-HA) installation provides an easy way
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to install an entire OpenStack cluster without requiring the degree of
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increased hardware involved in ensuring high availability.
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to install an entire OpenStack cluster without requiring the expense of
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extra hardware required to ensure high availability.
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**Multi-node (HA)**: When you're ready to begin your move to production, the
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Multi-node (HA) configuration is a straightforward way to create an OpenStack
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**Multi-node (HA)**: When you are ready to move to production, the Multi-node
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(HA) configuration is a straightforward way to create an OpenStack
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cluster that provides high availability. With three controller nodes and the
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ability to individually specify services such as Cinder, Neutron (formerly
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Quantum), and Swift, Fuel provides the following variations of the
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Quantum), Swift, and Ceph, Fuel provides the following variations of the
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Multi-node (HA) configurations:
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- **Compact HA**: When you choose this option, Swift will be installed on
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@ -32,8 +32,8 @@ Multi-node (HA) configurations:
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for additional Swift servers while still addressing high availability
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requirements.
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- **Full HA**: This option enables you to install independent Swift and Proxy
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nodes, so that you can separate their operation from your controller nodes.
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- **Full HA**: This option enables you to install dedicated Cinder or Ceph
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nodes, so that you can separate their operations from your controller nodes.
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In addition to these configurations, Fuel is designed to be completely
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customizable. For assistance on deeper customization options based on the
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@ -35,7 +35,7 @@ components:
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* Hypervisor
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* KVM
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* QEMU
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* Open vSwitch
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@ -9,9 +9,10 @@ Installing Fuel Master Node
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.. contents :local:
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Fuel is distributed as both ISO and IMG images, each of them contains
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an installer for Fuel Master node. The ISO image is used for CD media devices,
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iLO or similar remote access systems. The IMG file is used for USB memory sticks.
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Fuel is distributed via both ISO and IMG images. Eac contains an installer for
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Fuel Master node. The ISO image is used for CD media devices, iLO (HP) or
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similar remote access systems. The IMG file is used for USB memory stick-based
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installation.
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Once installed, Fuel can be used to deploy and manage OpenStack clusters. It
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will assign IP addresses to the nodes, perform PXE boot and initial
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@ -20,47 +21,49 @@ the cluster.
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.. _Install_Bare-Metal:
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On Bare-Metal Environment
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-------------------------
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Bare-Metal Environment
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----------------------
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To install Fuel on bare-metal hardware, you need to burn the provided ISO to
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a CD/DVD or create a bootable USB stick. You would then begin the
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installation process by booting from that media, very much like any other OS.
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a writeable DVD or create a bootable USB stick. You would then begin the
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installation process by booting from that media, very much like any other OS
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install process.
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Burning an ISO to optical media is a deeply supported function on all OSes.
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For Linux there are several interfaces available such as `Brasero` or `Xfburn`,
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two of the more commonly pre-installed desktop applications. There are also
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Burning an ISO to optical media is a commonly supported function on all OSes.
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On Linux, there are several programs available, such as `Brasero` or `Xfburn`,
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two commonly pre-installed desktop applications. There are also
|
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a number for Windows such as `ImgBurn <http://www.imgburn.com/>`_ and the
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open source `InfraRecorder <http://infrarecorder.org/>`_.
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Burning an ISO in Mac OS X is deceptively simple. Open `Disk Utility` from
|
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Burning an ISO in Mac OS X is quite simple. Open `Disk Utility` from
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`Applications > Utilities`, drag the ISO into the disk list on the left side
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of the window and select it, insert blank media with enough room, and click
|
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`Burn`. If you prefer a utility, check out the open source `Burn
|
||||
of the window and select it, insert blank DVD, and click `Burn`. If you prefer
|
||||
a different utility, check out the open source `Burn
|
||||
<http://burn-osx.sourceforge.net/Pages/English/home.html>`_.
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Installing the ISO to a bootable USB stick, however, is an entirely different
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matter. Canonical suggests `PenDriveLinux` which is a GUI tool for Windows.
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On Windows, you can write the installation image with a number of different
|
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utilities. The following list links to some of the more popular ones and they are
|
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all available at no cost:
|
||||
utilities. The following list links to some of the more popular ones and they
|
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are all available at no cost:
|
||||
|
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- `Win32 Disk Imager <http://sourceforge.net/projects/win32diskimager/>`_.
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- `ISOtoUSB <http://www.isotousb.com/>`_.
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After the installation is complete, you will need to allocate bare-metal
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nodes for your OpenStack cluster, put them on the same L2 network as the
|
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Master node, and PXE boot. The UI will discover them and make them available
|
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for installing OpenStack.
|
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After the installation is complete, you will need to make your bare-metal nodes
|
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available for your OpenStack cluster. Attach them to the same L2 network
|
||||
(broadcast domain) as the Master node, and configure them to automatically
|
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boot via network. The UI will discover them and make them available for
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installing OpenStack.
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On VirtualBox
|
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-------------
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VirtualBox
|
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----------
|
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|
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If you are going to evaluate Fuel on VirtualBox, you should know that we
|
||||
provide a set of scripts that create and configure all of the required VMs for
|
||||
you, including the Master node and Slave nodes for OpenStack itself. It's a very
|
||||
simple, single-click installation.
|
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If you would like to evaluate Fuel on VirtualBox, you can take advantage of the
|
||||
included set of scripts that create and configure all the required VMs for a
|
||||
test environment, including the Master node and Slave nodes for OpenStack
|
||||
itself. It is a simple, single-click installation.
|
||||
|
||||
.. note::
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|
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@ -71,15 +74,17 @@ simple, single-click installation.
|
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The requirements for running Fuel on VirtualBox are:
|
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|
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A host machine with Linux or Mac OS.
|
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The scripts have been tested on Mac OS 10.7.5, Mac OS 10.8.3, Ubuntu 12.04 and Ubuntu 12.10.
|
||||
The scripts have been tested on Mac OS 10.7.5, Mac OS 10.8.3, Ubuntu 12.04,
|
||||
Ubuntu 12.10, and Fedora 19.
|
||||
|
||||
VirtualBox 4.2.12 (or later) must be installed with the extension pack. Both
|
||||
can be downloaded from `<http://www.virtualbox.org/>`_.
|
||||
VirtualBox 4.2.12 (or later) must be installed, along with the extension pack.
|
||||
Both can be downloaded from `<http://www.virtualbox.org/>`_.
|
||||
|
||||
8 GB+ of RAM
|
||||
to handle 4 VMs for non-HA OpenStack installation (1 Master node, 1 Controller
|
||||
node, 1 Compute node, 1 Cinder node) or
|
||||
to handle 5 VMs for HA OpenStack installation (1 Master node, 3 Controller
|
||||
Will support 4 VMs for non-HA OpenStack installation (1 Master node,
|
||||
1 Controller node, 1 Compute node, 1 Cinder node) or
|
||||
|
||||
Will support 5 VMs for HA OpenStack installation (1 Master node, 3 Controller
|
||||
nodes, 1 Compute node)
|
||||
|
||||
.. _Install_Automatic:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user