|Exam Name||:||Oracle Solaris 11 Installation and(R) Configuration Essentials|
|Questions and Answers||:||75 Q & A|
|Updated On||:||February 15, 2019|
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1Z0-580 exam Dumps Source : Oracle Solaris 11 Installation and(R) Configuration Essentials
Test Code : 1Z0-580
Test Name : Oracle Solaris 11 Installation and(R) Configuration Essentials
Vendor Name : Oracle
Q&A : 75 Real Questions
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Oracle has been busy during the last week, with three generic releases inside a day of every other and a brand new acquisition. On July 30, Oracle released the newest new release of its flagship database, Oracle Database 12c release 188.8.131.52. sooner or later later, Oracle launched the next version of Oracle Solaris, Oracle Solaris eleven.2, and Oracle Solaris Cluster four.2. On July 31, Oracle also signed an agreement to purchase cloud-based application as a provider business TOA applied sciences.Oracle released Oracle Database 12c release 184.108.40.206
the brand new release of Oracle Database 12c comprises Oracle Database In-memory and the just-launched Oracle huge information SQL. different features encompass Oracle JSON doc shop, which makes it possible for Oracle Database 220.127.116.11 consumers to keep JSON doc facts in the Oracle Database and query it the use of SQL or rest as an interface.
The addition of Attribute Clustering ensures that connected columns in a database are saved close collectively for short access. a brand new function for speedy domestic Provisioning simplifies the renovation, upgrading and provisioning of a multitenant database cloud ambiance. Oracle Database 18.104.22.168 also includes improvements to Oracle Multitenant for simplifying statistics consolidation in the cloud. other features include Oracle relaxation statistics services, advanced index Compression, Zone Maps, Approximate count distinct and full Database Caching.
unencumber 22.214.171.124 is a full challenge and doesn't require Oracle Database 126.96.36.199. It might be available for download by means of OTN and eDelivery. currently, release 188.8.131.52 is for business editions best.Oracle Solaris eleven.2 launched
Oracle Solaris eleven.2 uses OpenStack's open source application, which is designed for building scalable cloud operating methods. It additionally uses clustering, utility-driven SDN and virtualization. Oracle Solaris eleven.2 has virtualization with guide for Solaris Zones at distinctive degrees within the kernel patch, as well as built-in compliance reporting. Oracle boasts the skill to get a cloud working in as little as 10 minutes the use of OpenStack's distribution.
a new feature of Oracle Solaris eleven.2 is the Unified Archive template, which is a brand new native archive file classification. Archives are made out of a deployed server example. Unified Archives allow the user to decide what zones in the server example, if they are put in, are protected or excluded.Oracle launched Oracle Solaris Cluster four.2
On July 31, Oracle launched Oracle Solaris Cluster 4.2, to be paired with Oracle Solaris eleven.2. Oracle Solaris Cluster 4.2 is high-availability application. It comes with new facets, together with catastrophe recovery orchestration, which permits the user to control multiple Geographic version protection group at a time.
Oracle Solaris Cluster four.2 additionally elements a brand new graphic consumer interface, the Oracle Solaris Cluster supervisor Graphical person Interface, comfortable computerized setting up and assist for the Unified Archives and Oracle Solaris Kernel Zones. Oracle Solaris Cluster four.2 makes use of superior Oracle Solaris Cluster APIs to provide greater guide for the excessive availability data functions for reside migration.Oracle acquires TOA applied sciences
On July 31, Oracle signed an settlement to purchase TOA know-how, which gives cloud-based mostly SaaS targeted to field features. TOA's field carrier SaaS screens container carrier requests in actual-time as they come in from contact centers. Then, it dispatches the appropriate box provider representative. The box provider SaaS uses enterprise analytics to predict carrier home windows, computer screen inventory and improve the efficiency of container operations.
Oracle intends to pair TOA's expertise with the Oracle carrier Cloud and Oracle commercial enterprise Relationship administration (ERP) Cloud. Oracle hopes that the addition of TOA will enrich the Oracle Cloud's effectiveness for customer service agencies.
this is Oracle's 2d acquisition of a cloud-based mostly company seeing that the 2014 q4 document on June 19. the primary become LiveLOOK, someday after the q4 document on June 20.
suppose about a telecommunications business, and also you might think about massive concrete structures stuffed with bundles of fiber-optic cables and copper wires, racks of blinking switches, and massive generators. Telcos have been among the many examples of companies that require an important physical facts center for every area they serve.
Yet nowadays, telcos are moving to the cloud in a large manner. Startup telecom corporations are launching the use of the cloud for very nearly all their needs, and latest telcos, even the largest, are using the cloud to help them expand into new cities—and countries.
“For telecom operators, the cloud migration become not as effortless as for early adopters with web purposes,” says Andriy Zhylenko, chief technical officer of PortaOne, a global dealer of software for telcos that now offers its billing and switching platform via the cloud. “Even about five years ago, people had been very skeptical, saying, ‘We're not ever going to flow to the cloud as a result of we need the infrastructure under our manage to tackle the security concerns, and since we have physical interconnects by the use of cable and fiber.’”
however that mannequin of a data core in each market doesn’t healthy telcos’ ambitions for fast, global increase. Telcos “need to be in manhattan and Singapore and Frankfurt and Sydney, everywhere,” says Zhylenko. “to acquire, convey, and retain servers, storage, networking gadget in all those facts centers turns into more and more expensive and very, very cumbersome.”
That’s why international telecommunications companies are the use of cloud software from PortaOne, which has greater than 450 customers in ninety nations.
For telcos, these are mission-critical applications that PortaOne is delivering by means of a cloud option. One, the billing and operational aid system, or B/OSS, runs all of a telco’s account administration, billing, and repair provisioning into community features and API for integration with third-birthday party software such as customer relationship management (CRM) programs. The different, a softswitch, basically connects cellphone calls or messages from one consumer to an additional across disparate networks. PortaOne’s cloud-based edition of these apps runs on Oracle Cloud Infrastructure for much of its functionality.
The performance of the “naked metallic” servers in Oracle Cloud Infrastructure is a key to PortaOne’s success. “Our real-time telecom utility does all of the call processing,” explains Zhylenko. “Any tiny network lengthen, which would be invisible for an internet application, will definitely make the first-rate of sound insupportable. So we need to make certain the cloud has the community performance and skill to tackle accurately all of the actual-time requests. Oracle was the most excellent choice for us and for our telco customers.”
swap from On-website to the Cloud
beginning about 18 years as a spinout from Norway’s Telenor, PortaOne become launched to create a simple-to-enforce system for telecommunication operators. unless that point, operators had to purchase a industrial “black box” system that provided the telco handiest limited customization, or advance their own device, Zhylenko says.
PortaOne, by contrast, created a software-based mostly telecom equipment that changed into completely open and encouraged customization. “We even deliver the source code to our shoppers with the intention to do their own innovation and integration,” says Zhylenko. “It’s a telco platform that allows for for collaboration between us and our valued clientele.”
When PortaOne started, the cloud wasn’t a factor, and its telecommunications valued clientele ran the PortaSwitch application of their own facts centers. This limited their agility to enter new markets and add new services. PortaOne now has consumers the usage of its utility via an on-premises model, a cloud-based mostly mannequin the place every consumer receives its own set of committed computing substances and remoted network, and a hybrid model, wherein an organization’s leading website is on-premises and its newer, further websites run in Oracle's cloud.
moreover expanded agility, the extra websites within the cloud present telcos another large advantage: easy, gradual updates.
When a brand new utility version turns into purchasable, PortaOne doesn’t deserve to roll out an upgrade of the complete equipment without delay, “anything that fills every COO with dread,” says Zhylenko. as a substitute, PortaOne can launch an additional installation—operating a brand new free up—in the cloud, after which migrate subscribers in batches, beginning with a small set of pilot shoppers. This technique is seamless to the telcos, and after every batch, each and every operator has adequate time to look at its personal purchasers and tackle any considerations detected.
With this method, says Zhylenko, operator chance is tremendously decreased and the telcos can launch new services tons sooner and with more confidence. for instance, when it involves rolling 5G out instant, PortaOne can make sure that handiest those consumers willing to upgrade might be migrated in the first wave of operators.
in addition, as an alternative of the months and even years it could possibly take to construct a new telecommunications facility to enter a new market, a telco the use of a cloud-based B/OSS and softswitch can spin up a competent-to-use platform in a brand new market inside a day, Zhylenko says.
PortaOne offers as a minimum seven application versions (including upkeep releases) each yr, with new points that might be in the emerging 5G instant enviornment, IoT, computing device-to-laptop, blockchain, or even cryptocurrencies like Bitcoin: “We work in a very agile development—our unencumber cycle is barely seven weeks,” says Zhylenko.
turning out to be quickly Globally
About a 3rd of PortaOne’s shoppers are in North the us, a further third are in Europe, and the closing third are spread across Africa, Australia, and Asia.
“We see loads of increase in the setting up nations,” Zhylenko says. “And the cause of this is there is awfully little present infrastructure, so for somebody who wants to installation telco features, it’s the excellent chance to supply records connectivity, and then supply features equivalent to voice calling and messaging, straight relocating to more superior IoT/M2M markets.” PortaOne’s cloud-primarily based functions aid them arise and working sooner—and none of these clients needs to construct a local records middle for B/OSS or softswitch services.
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advice features: currently 298 jobs.The newest job was posted on 11 Feb 19.
probably the most well-liked jobs within suggestions features is working inside credit rating agencies. The function of credit rating groups is to investigate the risk of definite investments, and a huge part of a credit agency position is analyzing information to provide ratings. ratings support traders verify the expertise possibility of procuring certain bonds, both in the neighborhood and internationally. Following the world fiscal disaster, credit rating groups gained slightly of a nasty acceptance, accused of giving bigger scores, and certainly more AAA scores, than have been being earned. happily, these difficulties for the credit rating agencies were overcome and they stay authentic and important places to work. certainly, new rules stemming from the Dodd-Frank Act state that the route to all ratings decisions need to be evidently described, which has supposed extra analyst alternatives within the organizations.
The huge 3
when you are looking to get in with some of the key players within the monetary tips capabilities suppliers, try efinancialcareers.com's job listings from Moody's, commonplace & poor's, and Fitch. These are considered the 'massive three' on the earth of credit rating companies. These are all impartial, unaffiliated companies which goal to provide neutral counsel. All of them operate internationally, offering job opportunities internationally, in case you fancy a job that comprises commute and relocation. for new graduates, junior analyst roles are probably the most common, proposing internal progression alternatives to roles with extra affect over the market.
suggestions functions isn't practically working with the credit standing field. This umbrella time period comprises any position which acts as a popular suggestions useful resource, and has some degree of impact over inventory values and the existing market. This contains financial journalism, exceptionally within principal, internationally widespread publishing homes such because the Economist, Bloomberg Markets, and the monetary instances.
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After you have installed VirtualBox, you can create guests. While this can be accomplished using command-line tools, the first example given here uses the VirtualBox GUI installation wizard.5.5.1 Creating the Guest Machine
You can start to install a guest machine by launching the VirtualBox tool:% VirtualBox &
Figure 5.9 shows the initial VirtualBox screen.
To begin creating the first virtual machine, click the New button. This will launch the New Virtual Machine Wizard.
The first step is to name the new virtual machine and choose the operating system of the guest. The name of the guest is unrelated to its actual host name or network identity; those identities will be set later, once the guest is running. The guest name is only used by VirtualBox to identify the guest being managed. The operating system type determines how VirtualBox will emulate devices and which code scanning techniques to use when running the guest kernel code. The name of the guest can be changed later, but the OS type should be correct before creating the guest.
For this example, the guest will be named Windows XP and will run the Windows XP operating system, as shown in Figure 5.10.
The next step is to assign the amount of memory to be allocated for the guest. The amount needed is usually less than needed for a physical system. Many operating systems manage a file cache to improve performance of disk reads. If the host OS has a file cache, the guests will not need much of a file cache to maintain reasonable performance, so you can allocate less memory to guests. The installation wizard will suggest a minimum memory size based on the operating system type chosen in the previous step. Figure 5.11 shows the allocation of 512 MB for the Windows XP guest—more than enough for typical virtual desktop needs.
Every guest needs a boot disk. For simplicity, the New Virtual Machine Wizard allows you to create only a single boot disk image. It will always assign this disk as the master device on the first IDE controller. If you need a different configuration, use the VBoxManage command. At this point in the guest installation, you can choose whether to create a new disk image or use one that is already registered in the Virtual Media Manager. There aren't any virtual disks on this system yet, so select Create new hard disk as shown in Figure 5.12. Note that VirtualBox suggests a size for the disk based on the operating system that was chosen in the previous step.
This disk must either be a fixed size or dynamically expanding disk image. A dynamically expanding disk is typically used, as shown in Figure 5.13, because it doesn't waste real disk space.
The next screen allows you to name the disk image and specify its size. By default, this disk image is stored in your home directory in a hidden directory named .VirtualBox. If not enough space is available there, you can click the icon to the right of the image name and tell VirtualBox where to place the image. You will need read and write access to the directory holding the disk images.
In this example, the disk image is named Windows 7.vdi and has a size of 10 GB, which is the default. In practice, the name of the disk image should indicate not only which virtual machine is using it, but also how that disk is used. Figure 5.14 shows the name and size of the guest boot disk.
Figure 5.14 Choosing the Name and Size of the Guest Disk Image (top)
Figure 5.15 shows the final disk configuration. After reviewing the settings, click Finish. At this point, the disk image will be created and registered in the Virtual Media Manager.
The final step in the installation wizard is to review the final guest configuration, as shown in Figure 5.16. Verify that the settings are what you desired and click Finish to create the guest.
Figure 5.16 Final Review of the Guest Configuration (bottom)
You have successfully created your first guest machine. You can click the Settings button and familiarize yourself with some of the other configuration options, such as audio, video memory size, additional networks, processor accelerations, and shared folders.5.5.2 Installing the Guest Operating System
Once you are satisfied that the guest machine configuration is suitable for your needs, you can install the operating system on the guest boot disk. The most common method of doing so is to attach a CD-ROM disk image to one of the available virtual CD-ROM devices so that the guest will boot from that device. To attach the CD-ROM image, select the guest machine and click Settings. Then select Storage and a window similar to Figure 5.17 will be displayed.
Figure 5.17 Guest Storage Configuration Before Attaching the Installation Media
When you click the CD-ROM device, you will see that it is the master device on the secondary IDE channel. This device also happens to be second device in the BIOS boot order, right behind the floppy disk, which is rarely used. Also note that the device is currently empty, meaning that no virtual or real media has been inserted.
To attach the installation media, you must first register it with the Virtual Media Manager. In this example, the media is found in the file /export/iso/windows/winxp_sp3_x86.iso. Click the folder icon to the right of the CD/DVD Device pull-down menu, which will launch the Virtual Media Manager, as shown in Figure 5.18.
Because this is the first guest in a new VirtualBox installation, the only CD-ROM disk image present is VBoxGuestAdditions.iso, which contains the Guest Additions. To add the Windows installation media, click the Add button, navigate to the directory where the CD-ROM image is stored, and select it, as shown in Figure 5.19. Then you can highlight the appropriate disk image and click the Select button to insert it into the virtual CD-ROM device. Once registered, you can select this media in any guest from the CD/DVD Device pull-down menu on the guest Storage settings without having to start the Virtual Media Manager.
Figure 5.19 Virtual Media Manager After Adding the Windows Installation Media
After the CD-ROM disk image is registered with the Virtual Media Manager, it should be available as a CD-ROM device selection on the guest storage settings, as shown in Figure 5.20. Alternatively, if you start the guest with a new boot disk and fail to assign a CD-ROM, VirtualBox will launch the Virtual Media Manager so that you can select an existing image or register a new one. When this process is complete, the image will automatically be attached to the CD-ROM device and the guest will continue the booting process.
Figure 5.20 Selecting the Installation Media for the Guest
All that is left to do is start the guest machine. However, first we will show the creation of a guest using the VBoxManage command line.5.5.3 Creating a Guest Machine Using the Command Line
The command-line interface (CLI) for VirtualBox is more complicated to use than the GUI, but it offers several advantages:
As in the previous example, the first step is to create and register the guest virtual machine. If you don't know which OS type to select when creating your virtual machine, giving the command VBoxManage list ostypes will produce a list of supported options. For this example, WindowsXP_64 is the correct choice.% VBoxManage createvm --name "Windows XP" \ --ostype WindowsXP_64 --register Virtual machine 'Windows XP' is created and registered. UUID: 4ec5efdc-fa76-49bb-8562-7c2a0bac8282 Settings file: '/vbox/Machines/Windows XP/Windows XP.xml' % VBoxManage showvminfo "Windows XP" Name: Windows XP Guest OS: Windows XP (64 bit) UUID: 4ec5efdc-fa76-49bb-8562-7c2a0bac8282 Config file: /vbox/Machines/Windows XP/Windows XP.xml Hardware UUID: 4ec5efdc-fa76-49bb-8562-7c2a0bac8282 Memory size: 128MB VRAM size: 8MB Number of CPUs: 1 Synthetic Cpu: off CPUID overrides: None Boot menu mode: message and menu Boot Device (1): Floppy Boot Device (2): DVD Boot Device (3): HardDisk Boot Device (4): Not Assigned ACPI: on IOAPIC: on PAE: on Time offset: 0 ms Hardw. virt.ext: on Hardw. virt.ext exclusive: on Nested Paging: on VT-x VPID: on State: powered off (since 2010-02-14T23:05:30.798000000) Monitor count: 1 3D Acceleration: off Teleporter Enabled: off Teleporter Port: 0 Teleporter Address: <NULL> Teleporter Password: <NULL> NIC 1: MAC: 0800270213D4, Attachment: NAT, Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps NIC 2: disabled NIC 3: disabled NIC 4: disabled NIC 5: disabled NIC 6: disabled NIC 7: disabled NIC 8: disabled UART 1: disabled UART 2: disabled Audio: disabled Clipboard Mode: Bidirectional VRDP: disabled USB: disabled USB Device Filters: <none> Shared folders: <none> Guest: Statistics update: disabled
This guest should need about 512 MB of memory, and you may want to use the audio device. Also, 8 MB is not enough video RAM, and 3D acceleration is supported with the Guest Additions.% VBoxManage modifyvm "Windows XP" --memory 512 --vram 32 \ --accelerate3d on --audio oss
Storage configuration requires a few commands to complete. First you must create the IDE controller and the boot disk image, and attach them together. Then you must register and attach the CD-ROM image of the boot media. Finally, the BIOS boot order must be set to boot from CD-ROM before the disk. Note that because the image file name is specified as a relative path name, it is relative to the VirtualBox settings, not your current working directory.% VBoxManage storagectl "Windows XP" --name "IDE Controller" \ --add ide --controller ICH6 % VBoxManage createhd --filename "Windows XP.vdi" --size 10240 \ --format VDI --remember 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% Disk image created. UUID: 388311ed-b303-4405-8689-3dee5abc8f68 % VBoxManage storageattach "Windows XP" \ --storagectl "IDE Controller" --port 0 --device 0 \ --type hdd --medium "Windows XP.vdi" % VBoxManage openmedium dvd /export/iso/windows/winxp_sp3_x86.iso % VBoxManage storageattach "Windows XP" \ --storagectl "IDE Controller" --port 1 --device 0 \ --medium "/export/iso/windows/winxp_sp3_x86.iso" \ --type dvddrive % VBoxManage modifyvm "Windows XP" --boot1 dvd --boot2 disk
At this point, the virtual machine is configured and ready to boot.5.5.4 Starting a Virtual Machine
Oracle VM VirtualBox provides three different methods for starting a virtual machine. The most common method is from inside the VirtualBox graphical tool itself. Select the guest and click the Start button. When the guest machine starts, a fully featured console window is opened on the host. Until the Guest Additions are installed, keyboard and mouse operations are captive. In other words, once you click inside the guest window, it will restrict your cursor to its window and will continue to receive all keyboard input until told to release the focus, usually achieved by clicking the Host key. The current Host key is displayed at the lower-right corner of the guest console window. Once the Guest Additions are installed, however, the keyboard and mouse will be seamlessly attached and detached as your mouse moves over the window.
Using this method, the user on the host can control many of the operations of the guest, such as changing the size of the window, attaching CD-ROM media, or turning seamless mode on or off.
If a less complicated console is desired, a simple window with no menu decorations can be used to start a guest. Give the command /usr/bin/VBoxSDL to start the guest. Instead of a fully featured window, a simple window is displayed. This approach is primarily used for debugging purposes but can be used if a simple console is required.
A more interesting start method is a headless system. In this case, the guest machine is started by the /usr/bin/VBoxHeadless command. This command starts the guest machine but does not display the console on the host system. Instead, the built-in Virtual Remote Desktop Protocol (VRDP) server starts. A remote system can then access the guest console using any RDP client program. For Oracle Solaris, one such program is rdesktop, which can be found on the Solaris Companion Software CD.
The following example demonstrates starting a guest machine in headless mode on a host system. This is just the type of operation that the Solaris Service Manage Facility (SMF) could easily automate.% VBoxHeadless --startvm "Windows XP" Sun VirtualBox Headless Interface 3.1.4 (C) 2008-2010 Sun Microsystems, Inc. All rights reserved. Listening on port 3389.
To connect to this guest from a remote system, we will use an RDP client. This example shows the use of rdesktop on an Oracle Solaris system to connect to the newly created Windows XP guest machine, which is running on a host named pandora.% rdesktop pandora:3389
On the remote system, a new window is opened showing the guest desktop that is running on pandora. Figure 5.21 shows the guest desktop running the Windows XP installation program.5.5.5 Stopping a Virtual Machine
A guest is typically shut down by using its native method. Nevertheless, other options for stopping a virtual machine are available. Regardless of the method used to create the guest, it can be stopped from the host either through the command line or via the VirtualBox GUI. Both of these methods provide several mechanisms that can stop a guest.
Here is an example of a safe external host-initiated shutdown for the guest named Windows XP:% VBoxManage controlvm "Windows XP" acpipowerbutton
This command sends an ACPI shutdown signal to the guest, which will start an orderly shutdown process.5.5.6 Cloning a Virtual Machine
Although VirtualBox does not currently feature complete cloning of a virtual machine, it does provide a host-agnostic method of cloning disk images. This is done via the VBoxManage clonehd command. The source disk image is copied in its entirety and a new UUID is assigned. The disk can be registered in the user's Media Manager or copied to another system to be used elsewhere. All that is required to complete the cloning of the virtual machine is to create the new guest configuration, using either the command line or the GUI as shown before.
If the host system is running Oracle Solaris, ZFS data set cloning can be used instead of cloning the virtual disk device with VBoxManage. The result is much faster cloning time. Because ZFS needs to allocate space only for the additional blocks that are changed in the clone, this approach also results in a smaller total storage requirement for the new guest.
To use ZFS cloning, two steps must be completed. The first step is the creation of the ZFS clone, which requires two commands. Because ZFS cloning occurs on a data set level, you should place the guest disk images in separate ZFS file systems. If a guest machine has several disks and they will always be used together, place them all in the same ZFS file system so that one ZFS operation can manage all of them.
The second step is the creation of a new UUID for the cloned virtual disk. Without this step, the cloned disk image would have the same UUID as a disk that is already registered. VirtualBox provides a method of creating a new UUID that must be used after completing the ZFS cloning operation.
The following example compares the time and space required to clone a disk image. The source is a 5 GB Solaris 10 boot disk. To simplify management of virtual disk devices, the source disk image is placed in a ZFS file system named pandora/HardDisks/s10guest1, which is mounted on the host as /vbox/HardDisks/s10guest1.
We first clone the disk image into the directory /vbox/HardDisks/s10guest2-trad using the VirtualBox clonehd method. For a consistent comparison of used space, the target directory is also a ZFS file system.# time VBoxManage clonehd \ "/vbox/HardDisks/s10guest1/Solaris 10 boot disk.vdi" \ "/vbox/HardDisks/s10guest2-trad/Solaris 10 boot disk.vdi" \ --remember 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% Clone hard disk created in format 'VDI'. UUID: 19fb45a2-3773-4580-9e85-bb54af784d9a real 9m40.680s user 0m2.233s sys 0m2.352s
Now we can clone the disk image using ZFS. The specific steps to do so are shown below. To record the total time of this operation, these commands were run from a script. The resulting time is indicated after the commands.# zfs snapshot pandora/vbox/HardDisks/s10guest1@s10guest2-zfs # zfs clone pandora/vbox/HardDisks/s10guest1@s10guest2-zfs \ pandora/vbox/HardDisks/s10guest2-zfs # VBoxManage internalcommands sethduuid \ "/vbox/HardDisks/s10guest2-zfs/Solaris 10 boot disk.vdi" UUID changed to: f06b5f4e-805e-4e74-8345-de9a22e39e81 # VBoxManage openmedium disk \ "/vbox/HardDisks/s10guest2-zfs/Solaris 10 boot disk.vdi" real 0m1.288s user 0m0.087s sys 0m0.132s
Using VBoxManage, virtual disk cloning took nearly 10 minutes, and the ZFS method just slightly more than 1 second. Although all directories indicate that they are 5 GB in size, the ZFS space listing shows how much space is actually consumed.# du -h /vbox/HardDisks 5.0G /vbox/HardDisks/s10guest2-zfs 5.0G /vbox/HardDisks/s10guest1 5.0G /vbox/HardDisks/s10guest2-trad 15 G /vbox/HardDisks # zfs list -r -o space pandora/vbox/HardDisks NAME AVAIL USED USEDSNAP pandora/vbox/HardDisks 57.0G 10.0G 0 pandora/vbox/HardDisks/s10guest1 57.0G 5.00G 0 pandora/vbox/HardDisks/s10guest2-trad 57.0G 4.99G 0 pandora/vbox/HardDisks/s10guest2-zfs 57.0G 164K 0
The traditional method of using the VirtualBox copy method consumed an additional 5 GB of disk space, which was expected. However, the ZFS clone consumed only 164KB of space. Of course, as the cloned guest machine starts writing to the disk, additional space will be required for storage of its data. For the parts of the disk that are not written, only one copy of the data will be kept across all of the cloned images, which represents a significant storage savings opportunity achieved by using ZFS for guest disk images.5.5.7 Live Migration of a Guest
Beginning with version 3.1, VirtualBox includes a feature called teleportation that allows a guest machine to move from one host to another while the guest machine is running. Except for some rare cases, the source and destination hosts need not run the same operating system or even the same type of hardware. In other words, you can migrate a guest running on an Oracle Solaris host to a Linux or Windows host.
The following steps are required to migrate a guest machine:
In this example, a guest machine named Solaris10 migrates from a host named source to one named target. The Solaris10 guest configurations on both hosts meet the guidelines listed above. On the target, place Solaris10 in teleportation mode and start it. Because it is not currently in use, port 6000 will be used for the teleportation connection.target% VBoxManage modifyvm Solaris 10 –-teleporter on \ –-teleporter 6000 target% VBoxManage startvm Solaris10
On the host source where the guest Solaris10 is currently running, initiate the live migration with the following command:source% VBoxManage controlvm Solaris10 teleport --host source \ --port 6000
The state of the guest Solaris10 will be transferred to the host target and the guest will resume execution on the new host. For more information on guest teleportation, see the VirtualBox User Manual.
Install a Database
As previously mentioned, VMware utilizes industry-standard databases for vCenter Server. Administrators cannot easily use or access the raw data contained in the vCenter Server database; instead, they must use vSphere Client. Components like the datacenters, clusters, resource pools, hosts, and virtual machines, along with their associated configuration and performance data, are stored in the backend database that vCenter Server is connected to. As mentioned, the default installation includes Microsoft SQL Server 2005 Express Edition. The vCenter Server installer automatically creates a data source name (DSN), the database, and the database schema when using the embedded SQL Server 2005 Express. We'll cover installation of the default database when we discuss vCenter Server installation.
We will examine a few alternate database installations—Microsoft SQL Server 2005 (other than Express Edition) or Oracle 10g or 11g—in the following sections.
Create a vCenter Database in Microsoft SQL Server 2005
The default Microsoft SQL Server 2005 Express Edition installation with vCenter Server supports up to 5 hosts and 50 virtual machines. It is not considered as robust as its cousins, Microsoft SQL Server 2005 Standard and Enterprise Editions. In many cases the Standard and Enterprise Editions are chosen due to their enhanced feature set, which they do not share with the Express Edition.
Tables listing the differences among the various editions of Microsoft SQL Server 2005 can be found on Microsoft's website:
Whether you have chosen to utilize Standard or Enterprise Edition, Microsoft recommends certain configuration settings when you're creating the vCenter Server database. The database can reside on the local system or can be accessed remotely. This database can be created automatically using the SQL 2005 management tools. Using the automatic method will require some additional configuration. To accomplish this easily, use the following steps:
Note: It is not a best practice to use a Domain Admin account for this purpose but rather a dedicated domain account. Make sure this user has db_datawriter and db_datareader permissions on the SQL instance.
use [master]goCREATE DATABASE [VCDB] ON PRIMARY(NAME = N'vcdb', FILENAME = N'C:\VCDB.mdf' , →SIZE = 2000KB , FILEGROWTH = 10% )LOG ON(NAME = N'vcdb_log', FILENAME = N'C:\VCDB.ldf' , →SIZE = 1000KB , FILEGROWTH = 10%)COLLATE SQL_Latin1_General_CP1_CI_ASgouse VCDBgosp_addlogin @loginame=[vpxuser], @passwd=N'vpxuser', →@defdb='VCDB', @deflanguage='goALTER LOGIN [vpxuser] WITH CHECK_POLICY = OFFgoCREATE USER [vpxuser] for LOGIN [vpxuser]gosp_addrolemember @rolename = 'db_owner', →@membername = 'vpxuser'gouse MSDBgoCREATE USER [vpxuser] for LOGIN [vpxuser]gosp_addrolemember @rolename = 'db_owner', →@membername = 'vpxuser'go
Remember that you can change the database user, location, and database name within this script. Keep in mind that these values will need to match the DSN created to access the database.
Note: If you're using a 64-bit operating system, you are required to run the 32-bit ODBC Administrator application, which is located at C:\Windows\SysWOW64\odbcad32.exe.
Note: With a default installation of SQL Server, only a single instance or installation of SQL is present. If multiple SQL Server installations are present on a server, each additional installation is referred to as a named instance. The primary instance does not have a specific name, other than the server name, while named instances are typically signified asSERVERNAME\InstanceName.
A DSN that is compatible with vCenter Server is now available. When the vCenter Server installer prompts for the DSN of the database, select vCenter Server, or whatever value you entered in step 10.
Microsoft SQL Server 2005 is a popular database, and as you can see in steps 1 through 15, it is relatively simple to configure.
Create a vCenter Database in Oracle
Not every environment uses Microsoft SQL Server 2005. For various reasons, administrators are often forced to choose databases already being used in their environment. Oracle is a popular database choice, and VMware supports several versions of Oracle, including 10g and 11g. Oracle has another appeal to environments that have a limited Microsoft footprint: it is available for many other platforms, including Linux, Solaris, and HP-UX. You don't have to have Oracle installed locally on the vCenter Server. Just as with Microsoft's database offering, when you're using Oracle, certain configurations are considered best practices when creating the database. Perform these steps to create the database:
CREATE SMALLFILE TABLESPACE "VPX" DATAFILE'/u01/app/oracle/oradata/vcdb/vpx01.dbf' →SIZE 1G AUTOEXTEND ON NEXT 10M MAXSIZEUNLIMITED LOGGING EXTENT MANAGEMENT →LOCAL SEGMENT SPACE MANAGEMENT AUTO;
Note: The datafile path ('/u01/app/oracle/oradata/vcdb/vpx01.dbf' in this case) must be a valid path on your Oracle system; change this to match your particular environment.
CREATE USER "VPXADMIN" PROFILE "DEFAULT" →IDENTIFIED BY "oracle" DEFAULT TABLESPACE →"VPX" ACCOUNT UNLOCK; →grant connect to VPXADMIN; →grant resource to VPXADMIN; →grant create view to VPXADMIN; →grant create sequence to VPXADMIN; →grant create table to VPXADMIN; →grant execute on dbms_lock to VPXADMIN; →grant execute on dbms_job to VPXADMIN; →grant unlimited tablespace to VPXADMIN;20727c03.indd 82 11/6/09 1:07:01 AM
Note: If you are using a 64-bit operating system, run the 32-bit ODBC Administrator application, which is located at C:\Windows\SysWOW64\odbcad32.exe.
Like SQL Server, Oracle is a popular database and is also relatively simple to configure for use with vCenter Server.Installing and Configuring vCenter Server VCenter Server installation requirements VCenter database installation in SQL Server 2005, Oracle VCenter Server installation steps and components
Printed with permission from Wiley Publishing Inc. Copyright 2009. VMware vSphere 4 Administration Instant Reference by Scott Lowe, Jason W. McCarty and Matthew K. Johnson. For more information about this title and other similar books, please visit Wiley Publishing Inc.
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