The great folks at the Oracle Technology Network (OTN) invited an artist over at Oracle World to create an Oracle Linux Penguin Lego painting. Now it finally arrived from the Oracle World grounds to the Oracle Warehouse to our floor in Redwood Shores at HQ and I took a few pictures of it.
it's awesome :)
The Oracle Partner Network (OPN) team has created about 10 videos around Oracle VM 2.2, from installing Oracle VM, create vm, to live migrate, enabling HA etc.
They're very educational and can be found here :
http://www.youtube.com/user/OraclePartnerNetwork just go to the search field and type in Oracle VM.
This morning, our long time partner Zend issued a press release announcing how we are working together to make PHP/Zend Server more integrated with Oracle Enterprise Linux.
Zend Server is a complete, Oracle-enabled, enterprise-ready Web appication Server for running and managing PHP applications that require a high level of reliability, performance and security. Connectivity to Oracle databases is delivered out of the box. We have a long history of working with Zend and the PHP community to ensure that the latest and greatest Oracle features are available in the PHP database connectivity libraries.
This is a first step to making it easy for our customers and users to quickly deploy the Zend software stack without having to go to various websites, download various packages and install them. Oracle's Linux OS Support customers make use of the Unbreakable Linux Network (ULN) to download updates and packages for their Oracle Enterprise Linux installs and can simply run an OS command to do so. (up2date
We now host an rpm package on the ULN servers called zend-server-repo which updates the Linux OS install to also look at the software repositories hosted by Zend. When a user wants to install Zend Server, just a simple command will install the zend-server product directly. There is more information here.
For those people that downloaded Oracle Enterprise Linux (free download for everyone including non-customers here) and use the public yum repository (freely available without registration here) , we have uploaded the rpm there as well.
So now we made it a lot easier for anyone using OEL to get going with Zend Server from Zend. We are looking forward to doing more integration work with Zend.
Well, at Oracle World we announced Oracle VM 2.2 and we also announced the Oracle VM Storage Connect program along with showing an implementation demo at the booth. Now that Oracle World 2009 is over, I finally found some time to play with this myself.
I just wanted to point out a few cools things as it's related to the upgrade of ocfs2 from 1.2 to 1.4 as part of the Oracle VM 2.2 release.
In 1.4 we support sparse files, this is very convenient for Virtual Machine images because in many cases the template might have a large virtual disk but the disk itself is virtually empty (lots of virtual stuff here :) ). By supporting sparse files on ocfs2, we can now save a lot of diskspace. Here is an example :
# ls -l 32_deploytest/
total 5893120
-rw-r--r-- 1 root root 16106127360 Oct 12 03:59 System.img
drwxrwxrwx 3 root root 3896 Oct 15 00:53 config-chroot
-rw-r--r-- 1 root root 624 Oct 15 00:53 vm.cfg
-rw-rw-rw- 1 root root 481 Oct 22 2009 vm.cfg.orig
# du 32_deploytest/
0 32_deploytest/config-chroot/etc/ovs-autostart
0 32_deploytest/config-chroot/etc
0 32_deploytest/config-chroot
5893120 32_deploytest
as you can see in the above example, the VM disk (System.img) is 16GB in size but actual size on disk is just shy of 6GB. In previous versions we would actually have allocated and used 16GB but now it's 6GB and as the holes get filled up because data gets written, the file size will grow up to the 16GB.
When people download Oracle VM templates, they tend contain very large disk images but the files are quite sparse and in 2.2, when unpacking these images, on ocfs2, the actual space used will be a lot less.
In the future this also will happen when deploying a VM from one server pool to another or cloning a VM or creating a virtual disk.
The other thing I wanted to show off is the reflink business. I have an Oracle VM 2.2 setup here with ocfs2 version 1.6 and a just newer kernel than what is part of 2.2.
# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 3050092 941232 1951424 33% /
/dev/sda1 101086 51467 44400 54% /boot
tmpfs 288340 0 288340 0% /dev/shm
/dev/sda3 484078592 33098752 450979840 7% /var/ovs/mount/572F5E5036E9404D8219F4E337B0561B
# ls -l 32_deploytest/
total 5893120
-rw-r--r-- 1 root root 16106127360 Oct 12 03:59 System.img
-rw-r--r-- 1 root root 624 Oct 15 00:53 vm.cfg
# ls -l clone/
total 0
# reflink -r 32_deploytest/System.img clone/System.img
# cp 32_deploytest/vm.cfg clone/
# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 3050092 941232 1951424 33% /
/dev/sda1 101086 51467 44400 54% /boot
tmpfs 288340 0 288340 0% /dev/shm
/dev/sda3 484078592 33098752 450979840 7% /var/ovs/mount/572F5E5036E9404D8219F4E337B0561B
# ls -l clone
total 0
-rw-r--r-- 1 root root 16106127360 Oct 15 03:25 System.img
-rw-r--r-- 1 root root 624 Oct 15 03:25 vm.cfg
as you can see from above :
diskspace on /dev/sda3 was 33GB used
the system.img file is 16GB in 32_deploytest
there are no files in clone/
reflink -r and you can see the system.img file at the same size in the directory clone/
diskspace on /dev/sda3 is still 33GB not 49GB.
This is a totally independent file, I can just start the VM and it will work and as I make changes to this VM the diskusage will change as the clone will have more local pages.
I can just delete the other file, it will not affect the cloned version. rm -f of 32_deploytest/System.img would not affect clone/System.img.
How long does this take ? let me try again :
# time reflink -r 32_deploytest/System.img clone/System.img
real 0m0.001s
user 0m0.000s
sys 0m0.000s
instant !
Another busy news day for Oracle VM
Today we made 3 announcements around Oracle VM, let me summarize them for everyone and provide the links.
First of all, Validated Configurations on Oracle VM.
We launched the Validated Configurations program a few years ago, around Unbreakable Linux and Oracle Enterprise Linux (OEL). We wanted to make sure that the operating system (OS) was actually well tested as part of a whole stack rather than just basic OS testing that tends to happen. The Validated Configurations site has been very popular with many customers and provides great information and guidelines on configurations across the stack. In most cases that meant "Database on OEL on Server x using Storage y". This has helped increase customer's confidence in deploying full enterprise software stacks on Linux and it helped reduce time to deploy a setup and so on.
So with Oracle VM we wanted to extend this to include Oracle VM underneath Oracle Enterprise Linux and above the server hardware and we now basically have "Database on OEL on Oracle VM on Server with Storage". The same extensive testing is done inside the Linux guests on top of Oracle VM and top to bottom validation. This should do the same as what we did before but now including the virtualization layer. Additionally. it should provide an extra level of comfort to customers given the amount of testing we do on top of our products. In particular making use of the Oracle product suites.
Secondly, we announced a new component to Oracle VM's product stack called Oracle VM Template Builder.
A while back we had created a Just Enough OS (JeOS) bundle around Oracle Enterprise Linux which was a set of packages you can install on top of an OS and that came with a set of tools to easily create Virtual Machines OS templates to be used with Oracle VM. Anyone can use this to create small VMs and then add any of the packages they need on top and configure the VM with one or more virtual disks, memory size and number of CPUs etc. All the Oracle product templates are built using the JeOS image as a starting point. Just to point out that this is not a New Distribution. JeOS is just a package set of the standard Oracle Enterprise Linux distribution. Instead of doing a normal CD install, in this case through the tools it will generate a virtual disk image and install the OEL RPMs directly rather than do a boot from CD/install.
Because OEL is freely available and freely redistributable, the JeOS components are as well and as such this allows people to create templates for their own products, whether this is for ISV virtual machines or for internal deployments at customer sites. This is not trial software and it doesn't require a contract.These are standard enterprise distributions, so just like what we do with Oracle product templates, they are production-quality software.
To extend these capabilities we created Oracle VM Template builder. This is a browser based template creation tool. Oracle VM template builder can be installed using a template on Oracle VM itself (a virtual machine that has everything installed for you) or you can get the RPMs off of our yum update server or from the Unbreakable Linux Network (ULN) and install the application on top of a standard OEL installation.
Oracle VM Template Builder is a web application which lets you configure the packages you want installed, what the VM should look like and it then creates a fully configured package that you can download or import directly into Oracle VM. It is not a hosted tool it's something you can run locally on your laptop/desktop/server. You can create users in the builder and store templates and modify templates and keep track of what you have built and create libraries, etc.
Oracle VM Template Builder relies on the JeOS components as described above.
Thirdly, we announced a new Oracle VM template for Oracle Siebel CRM 8.1. It is a completely configured environment that, in a single download and start-up, provides the entire Siebel CRM environment. The application server, application modules, Oracle database back-end and Oracle Enterprise Linux.
This makes it easy for anyone and everyone to start with Oracle Siebel CRM 8.1 in just a few steps. It reduces deployment time to at most a few hours, or less, to install everything from scratch, top to bottom and get going.
Oracle software templates show the strength of our stack, by being able to provide all the components directly and offer application, database, operating system and virtualization layer in one.
About 2 months ago I wrote a little blog entry that had a preview of the "upcoming" cli tool for Oracle VM. Well, as of today, if you have ULN (Unbreakable Linux Network) access, you can actually grab the cli rpms. We released the first version.
Likely by the end of next week, we are also going to publish these rpms on our freely accessible public yum server.
Package Names :
ovmcli-1.0-1.el5.noarch.rpm
python-ZSI-2.1-a1.el5.noarch.rpm
ULN channels :
el5_i386_oracle_addons | el5_x86_64_oracle_addons
el5_i386_addons | el5_x86_64_addons
have fun !
I am pleased to announce that the first version of the optimized device drivers for Windows on Oracle VM are released on http://edelivery.oracle.com/oraclevm. Go to the Oracle VM 2.1.5 Media Pack and download the small 8Mb zipfile that contains the driver .exe file.
You can find the documentation on OTN :
http://download.oracle.com/docs/cd/E11081_01/doc/doc.21/e15298/toc.htm
The drivers are freely available for download just like Oracle VM. You need Oracle VM 2.1.5 (or higher). have fun
Oracle VM 2.1.5 released.
A few days ago we released Oracle VM 2.1.5 which is available for download at http://edelivery.oracle.com/linux.
This release contains the following :
- bugfixes on both Oracle VM Manager and Oracle VM Server side
- the new webservices interface which I wrote a blog entry about, a few weeks ago
- external data-collector cronjob/thread moved into the Oracle VM Manager instance
- minor cosmetic improvements on the Oracle VM Manager side
This is a full CD release. So it is possible to do an install from scratch starting with 2.1.5, both the management and server side.
Prior releases 2.1.3 and 2.1.4 were only available updates through our online network (ULN).
The command line interface, which I mentioned that other entry, will be available shortly on ULN's Oracle VM channel, this cli will require Oracle VM 2.1.5+ and is just a python program/shell that will be able to run on a standard OEL environment.
Wim
For the last several months we have been working on a web services api (wsdl) and a command line interface (cli) for Oracle VM Manager. The cli uses the web services interface and is written in python so it can run on any platform where python is installed. The API exposes all the interfaces that the Oracle VM Manager UI components call, such as : manage server pools, servers, virtual machines, templates,...
It is now very easy to manage your Oracle VM server pools and virtual machines from a shell prompt. I was playing with this yesterday and figured I would take this opportunity to post an example.
In this example below, I had installed Oracle VM Manager (but not yet logged into it) and installed the cli scripts on one system and then I had installed Oracle VM server on another machine. On the Oracle VM server I had actually locally downloaded (manually) an Oracle VM template and created my own virtual machine without using the manager at all. So I actually create a new serverpool in Oracle VM Manager using the cli shell. I register my existing virtual machine and at the end show the list of commands we expose through the cli and through the webservices API. I think this is going to be very useful for many Oracle VM users.
configure the location of the Manager instance
wcoekaer@aldebaran-pc ~]$ ovm config
This is a wizard to help you start running the Oracle VM Command Line Manager.
Ctrl-C to exit.
Enter the host to connect:aldebaran-pc
Enter the port to connect:8888
Enter the deploy path (blank to default):
Enter the path of the vncviewer (blank to skip):
Would you like to enable WS-Security support? (Y/n)n
Configuration finish.
Please run the Oracle VM Command Line Manager again.
Starting up the cli in shell mode
[wcoekaer@aldebaran-pc ~]$ ovm -u admin shell
Enter Login Password:
Welcome to the Oracle VM Manager Shell. Type "help" for a list of commands.
I want to create a server pool but forgot the syntax
ovm> help serverpool_create
usage: ovm serverpool_create [options]
options:
-h, --help show this help message and exit
-H HOSTNAME, --hostname=HOSTNAME
(Required) Server Host/IP
-s SERVERPOOL_NAME, --serverpool_name=SERVERPOOL_NAME
(Required) Server Pool Name
-a, --ha_enabled Enable High Availability
-A AGENT_PASSWORD, --agent_password=AGENT_PASSWORD
Agent Password
-U UTILITY_USERNAME, --utility_username=UTILITY_USERNAME
(Required) Utility Server Username
-P UTILITY_PASSWORD, --utility_password=UTILITY_PASSWORD
Utility Server Password
-L SERVER_LOCATION, --server_location=SERVER_LOCATION
Server Location
-D DESCRIPTION, --description=DESCRIPTION
Description
create my server pool, the Oracle VM server name is wcoekaer-srv4
ovm>serverpool_create -s mypool -A ****** -H wcoekaer-srv4 -U root -P ****** -L myoffice -D something
ServerPool "mypool" has been created
you can see it shows as the only pool (mypool)
ovm> serverpool_list
Server Pool Name Status HA
mypool Active Disabled
there are no images imported yet so lets import the virtual machine I had already created
ovm> image_list
Name Size(MB) ServerPoolName Status CreationTime
ovm> image_register -s mypool -n dom1 -u root -p ******* -c ****** -o "Oracle Enterprise Linux 5" -d mydom1
Registering, please check the status.
as you can see, it now shows up
ovm> image_list
Name Size(MB) ServerPoolName Status CreationTime
dom1 6229.0 mypool Pending 2009-05-05
but ! need to approve it of course
ovm> image_approve -s mypool -n dom1
VM Image "dom1" has been successfully approved.
and here it is, it shows that it's stil up and running because I did not shut down the virtual machine, no need to
ovm> vm_list
Name ImageSize Mem VCPUs Status ServerPoolName
dom1 6229.0 256 1 Running mypool
a list of all the options
ovm> help
Usage: ovm [options] subcommand [suboptions]
Oracle VM Command Line Manager.
ovm full list of subcommands:
agent_version --- Get an agent version
config --- Start a configuration wizard
group_create --- Create a User Group.
group_list --- List of all the groups.
help --- Show help
image_approve --- Approve a VM Image
image_del --- Delete a VM image
image_discover --- List all of the Discoverable VM images
image_import --- Import an Image from an External Source
image_list --- Get a list of VM images
image_register --- Register a Discoverable VM image
image_status --- Show the Image status
iso_approve --- Approve an ISO image
iso_del --- Delete an ISO image
iso_discover --- List all of the Discoverable ISOs
iso_import --- Import an ISO from External Source
iso_list --- Get a list of ISO images
iso_register --- Register a Discoverable ISO image
iso_status --- Show the ISO status
os_list --- List all the available Operating Systems
server_add --- Add a Server to the ServerPool
server_config --- Config a Virtual Server
server_del --- Delete a Server from the ServerPool
server_info --- Get a VM Server info
server_list --- Get a list of VM Servers
server_poweroff --- Poweroff a VM Server
server_restart --- Reboot a VM Server
server_status --- Show the server status
serverpool_config --- Config a ServerPool
serverpool_create --- Create a ServerPool
serverpool_del --- Delete a ServerPool
serverpool_info --- Get a ServerPool info
serverpool_list --- Get a list of ServerPools
serverpool_refresh --- Refresh all of the ServerPools
serverpool_restore --- Restore a ServerPool
serverpool_status --- Get a ServerPool status
shareddisk_create --- Create and Register a Shared Virtual Disk
shareddisk_del --- Delete a Shared Virtual Disk
shareddisk_list --- Get a list of Shared Virtual Disks
shell --- Launch an interactive shell
template_approve --- Approve a Template
template_del --- Delete a Template
template_discover --- List all of the Discoverable Templates
template_import --- Import a Template from an External Source
template_list --- Get a list of Templates
template_register --- Register a Discoverable Template
template_status --- Show the template status
use --- Sepcify a ServerPool to use
user_assign_group --- Assign a user to the Group.
user_assign_serverpool --- Assign a user to the ServerPool.
user_create --- Create a User Account.
user_list --- List of all the users.
vm_add_disk --- Create and Add a disk to the VM
vm_add_nic --- Create and Add a nic to the VM
vm_as_template --- Save a VirtualMachine as template
vm_attach_cdrom --- Attach a CDROM to the VM
vm_attach_shareddisk --- Attach a Shared Virtual Disk to the VM
vm_clone --- Clone a VirtualMachine
vm_config --- Config a VirtualMachine
vm_create --- Create a VM
vm_del --- Delete a VirtualMachine
vm_del_disk --- Remove a disk from the VM
vm_del_nic --- Remove a nic from the VM
vm_deploy --- Deploy a VirtualMachine
vm_detach_cdrom --- Detach CDROMs from the VM
vm_detach_shareddisk --- Detach a Shared Virtual Disk from the VM
vm_info --- Get a VM info
vm_list --- Get a list of VMs
vm_list_cdrom --- List CDROMs of the VM
vm_list_disk --- List Disks of the VM
vm_list_nic --- List Virtual Network Interfaces of the VM
vm_migrate --- Live Migration
vm_migrate_all --- Migrate all the VMs on the server
vm_pause --- Pause a VirtualMachine
vm_poweroff --- Poweroff a VirtualMachine
vm_poweron --- PowerOn a VirtualMachine
vm_reboot --- Restart a VirtualMachine
vm_reset_status --- Reset status of a VirtualMachine
vm_resume --- Resume a VirtualMachine
vm_set_bootdevice --- Set the first BootDevice
vm_set_keyboardlayout --- Set the Keyboard Layout
vm_set_vnc_pwd --- Set the VNC Console Password
vm_status --- Get a VM status
vm_suspend --- Suspend a VirtualMachine
vm_unpause --- Unpause a VirtualMachine
vncviewer --- Start a VNC console.
It has been a while since I last wrote something about OCFS2. For those that don’t know what this is, OCFS2 is a feature-rich standard Linux cluster filesystem. Linus took OCFS2 into mainline in the 2.6.16 time frame and it is being actively maintained. The majority of the work has always been done at Oracle however folks from Novell have provided many contributions, as well as individuals like Christopher Hellwig.
OCFS2 is a really nice filesystem that is used by many people out there, if we track the ocfs2-users and ocfs2-devel mail lists it is clear that many people out there make use of it for their own applications.
We provide OCFS2 RPMs for Oracle Enterprise Linux(OEL) and Red Hat Enterprise Linux(RHEL) on oracle.com and we make the RPMs available integrated on ULN for the Oracle Unbreakable Linux support customers. Even though the code is in the 2.6.18 kernel that is used in RHEL5, they decided to not compile the modules so we compile them out of the kernel. (we do not modify the kernel config and build them in because that would be considered a change)
For people that want to use OCFS2 or play with it, it’s included in OEL as an extra (not modifications of existing RHEL code). You can get the RPMS for RHEL from the Oracle Technology Network (OTN). It is all free for use and download. If you need support you can purchase an Unbreakable Linux support subscription and that includes support for the filesystem.
You can find tons of information on our oss.oracle.com website http://oss.oracle.com/projects/ocfs2/. Some of the new features that are in the mainline Linux release of the filesystem are listed below. The most notable one is REFLINK which I will cover in more detail. All OCFS2 development is public and every change is immediately published on oss in our git repositories.
- extended attributes. in fact the value of each extended attribute can be as large as a regular file. Which is larger than even ext3 can do.
- Posix ACL support
- support for userspace cluster stacks. If needed it is possible to use OCFS2 with cman and pacemaker
- jbd2 support. This gives us 64-bit blocknumbers and we can theoretically support 4PB filesystems. with jbd1 the limit is/was 16TB per filesystem
- quota support
- metadata checksums and ecc. all metadatablocks in OCFS2 now have a checksum field. If the checksum fails, there is an ECC field that can recover a single bit error. If it is unrecoverable then OCFS2 will make this single inode unreadable but it does not or will not affect the rest of the filesystem. In most filesystems this would take the entire filesystem into read-only mode.
- improved inode allocation. This will help with filesystems which a huge huge number of files.
- indexed directories. This will improve performance of lookups of a single name.
- reflink which creates a target inode that shares the data extents of the source inode in a copy-on-write fashion.
Now, about reflink. The reason we implemented reflink is for Oracle VM. As you know, a virtual machine/guest owns one or more virtual disks. These virtual disks are represented as files on a filesystem hosted by the hypervisor. In the case of Oracle VM, if you have SAN or iSCSI storage, we put an OCFS2 filesystem on top of this, managed by the management domain (dom0). The virtual disks live on top of this OCFS2 volume.
These virtual disks can become very large, they usually are many GB’s in size. So when a user wants to create a clone of a virtual machine or create a virtual machine based on an existing template, we copy the content of the original virtual disks to a new set of virtual disks. By default this duplicates the amount of storage used.
ie. you have VM1 with a 40gb virtual disk (vm1/system.img) and you want to copy that to create VM2 based on the same virtual disk image (vm2/system.img).
The reflink feature in OCFS2 which was published to fs-devel and ocfs2-devel a while back, supports this operation through effectively creating hard links but with copy-on-write (or basically a point-in-time data hard link).
Today, we copy the file vm1/system.img to vm2/system.img. Tomorrow, we do reflink vm1/system.img vm2/system.img. At initial create time no additional space is used, no actual copying is done, it just creates a totally new inode/file and shares the data extents. As soon as a write is done to one or the other side, 1mb chunks are copied over where the writes occur.
This allows us to create instant copies of files (or in the case of Oracle VM, virtual disk images).
Some of the advantages of reflink are :
- Each “hard link” or point-in-time copy, is a regular file for the OS, for an application etc, so there are no changes needed to applications or backup software. This is totally transparent, there is no container around these files etc. Unlike vmdk and vhd where the snapshots live inside the containers.
- It is fully cluster safe so this works in an OCFS2 filesystem cluster so the link and the COW works on any node even if the file is used and opened on another node. This allows us in the Oracle VM case to create snapshots and run these new VMs on a different node than the original VM is running.
- This is a generic feature just like symlink. It is available to any user or application.
- It is open source (part of OCFS2 code) free to use for anyone.
Below is an example of reflink. It shows the diskspace usage, it shows the time it takes to complete the commands and also a simple modification done with dd to one file and show how that affects both files.
ls -l total 1771896 -rw-r--r-- 1 root root 1814420898 May 1 12:58 el4.5-system.img ===============================================================df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/sde1 50G 3.9G 47G 8% /ocfs2
===============================================================reflink el4.5-system.img el4.5-system1.img
real 0m0.030s
user 0m0.000s
sys 0m0.000s
===============================================================
ls -l
total 1771896
-rw-r--r-- 1 root root 1814420898 May 1 12:59 el4.5-system1.img
-rw-r--r-- 1 root root 1814420898 May 1 12:58 el4.5-system.img
===============================================================
df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/sde1 50G 3.9G 47G 8% /ocfs2
===============================================================
md5sum el4.5-system.img el4.5-system1.img
c41b670c59e8a4446ad07e9fb0f98b6d el4.5-system.imgreal 0m31.094s
user 0m7.420s
sys 0m10.530s
c41b670c59e8a4446ad07e9fb0f98b6d el4.5-system1.imgreal 0m34.553s
user 0m7.500s
sys 0m10.140s===============================================================
dd if=/dev/zero of=el4.5-system1.img bs=1M count=1000 seek=500 conv=notrunc
1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB) copied, 104.889 seconds, 10.0 MB/s
===============================================================
ls -l
total 3543792
-rw-r--r-- 1 root root 1814420898 May 1 13:02 el4.5-system1.img
-rw-r--r-- 1 root root 1814420898 May 1 12:58 el4.5-system.img
===============================================================
df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/sde1 50G 4.9G 46G 10% /ocfs2
===============================================================
md5sum el4.5-system.img el4.5-system1.img
c41b670c59e8a4446ad07e9fb0f98b6d el4.5-system.imgreal 0m32.430s
user 0m7.920s
sys 0m11.340s
b67b39c3c86a4110cb795f516bc7f86b el4.5-system1.imgreal 0m32.069s
user 0m7.920s
sys 0m10.350s
enjoy.
Wim Coekaerts is Oracle's Vice President of Linux Engineering.
