Question about Resource Pools

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• Question of Resource Pool

  Hi all

  Small question about resource pools. If I create a resource pool, the CPU and memory, I reserve will continue to be shared in the entire cluster until the virtual machines in the pool so require? Or once that I reserve of 20%, the main pool by default (the other virtual machines in the cluster) will no longer have this resource?

  Thank you very much

  Dave

  Hello

  This part of the documentation is not, however, in the main section its in the SDK/API section.

  This is straight from the vSphere 5.5 resources management pdf

  

  This stipulates that if you put a reserve on the list of resources, it will be discounted from the full resources of the parent. The resources are then considered reserved.

  The video came from VMworld 2012 which was all about the launch of vSphere 5.1 then I guess that his reference to this version.

• A few questions about resource groups

  Oracle documentation says that the creation of Simple Plan of resources automatically adds SYS_GROUP to level 1 of the plan and the OTHER_GROUPS at level 3.
  
  I checked SYS_GROUP and it seems that the SYSTEM is only the default member. What about SYS or SYSMAN or other dba (user) accounts? If a connect as SYS or with my own dba account to do administrative tasks will be to be considered a member of the SYS_GROUP or should I add "admin" users manually including DBSNMP SYS, SYSMAN, and so on...?
  
  Second question. Documentation also indicates that there is, at level 3, OTHER_GROUPS catch-all group. I looked at integrated groups of servers by default and there is no OTHER_GROUPS there! Only four.
  -AUTO_TASK_CONSUMER_GROUP
  -DEFAULT_CONSUMER_GROUP
  -LOW_GROUP
  -SYS GROUP
  
  Where's my OTHER_GROUPS?
  
  Oracle 10.2.0.4, Linux x 86.

  mishomor wrote:
  Oracle documentation says that the creation of Simple Plan of resources automatically adds SYS_GROUP to level 1 of the plan and the OTHER_GROUPS at level 3.

  I checked SYS_GROUP and it seems that the SYSTEM is only the default member. What about SYS or SYSMAN or other dba (user) accounts? If a connect as SYS or with my own dba account to do administrative tasks will be to be considered a member of the SYS_GROUP or should I add "admin" users manually including DBSNMP SYS, SYSMAN, and so on...?

  Although the system is added to the group member, Sys sessions would be a part of it. I'm not sure, but I can't seem to find the note where his indeedmentioned the Sys and System would use it.

  Second question. Documentation also indicates that there is, at level 3, OTHER_GROUPS catch-all group. I looked at integrated groups of servers by default and there is no OTHER_GROUPS there! Only four.
  -AUTO_TASK_CONSUMER_GROUP
  -DEFAULT_CONSUMER_GROUP
  -LOW_GROUP
  -SYS GROUP

  Where's my OTHER_GROUPS?

  Not sure where you looked, but I could find right away in my 11201 running on Win Xp professional.

  SQL> l
    1* select consumer_group from  dba_rsrc_consumer_groups
  SQL> /
  
  CONSUMER_GROUP
  ------------------------------
  DSS_GROUP
  DSS_CRITICAL_GROUP
  AUTO_TASK_CONSUMER_GROUP
  ORA$AUTOTASK_URGENT_GROUP
  BATCH_GROUP
  ORA$DIAGNOSTICS
  ORA$AUTOTASK_HEALTH_GROUP
  ORA$AUTOTASK_SQL_GROUP
  ORA$AUTOTASK_SPACE_GROUP
  ORA$AUTOTASK_STATS_GROUP
  ORA$AUTOTASK_MEDIUM_GROUP
  INTERACTIVE_GROUP
  OTHER_GROUPS                        <<<<<<<<<<<<<<<<<<<<<<<<<<
  DEFAULT_CONSUMER_GROUP
  SYS_GROUP
  LOW_GROUP
  ORA$APPQOS_0
  ORA$APPQOS_1
  ORA$APPQOS_2
  ORA$APPQOS_3
  ORA$APPQOS_4
  ORA$APPQOS_5
  ORA$APPQOS_6
  ORA$APPQOS_7
  ETL_GROUP
  
  25 rows selected.
  
  SQL> select * from V$version;
  
  BANNER
  -------------------------------------------------------------------------------
  Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
  PL/SQL Release 11.2.0.1.0 - Production
  CORE    11.2.0.1.0      Production
  TNS for 32-bit Windows: Version 11.2.0.1.0 - Production
  NLSRTL Version 11.2.0.1.0 - Production
  
  SQL>
  

  HTH
  Aman...

• Resource pools/shares

  I was reading some post about resource pools and I assure you that I understand correct.

  When you change a specific value of the VM action, it's realitive to the share which sound in.  For example:

  If you have a high hand and a low pool resources share configured.

  In this resource pool low hand, you have three virtual computers.

  2 virtual machines have normal stock and 1 VM high shares

  Who would give highest priority to 1 VM compared to what is in the correct low resource only, pool?  He wouldn't have a higher priority, then lets say to a virtual machine that is in the list actions high resources?

  Hello

  Correct, the VM with the high unit value is always on the upper side to use resources from the pool.

• Question about Lab Manager and ESX Resource Pools

  Hello world

  I was wondering if I can get feedback from some of the members of the community.  We used Lab Manager very strongly in our support organizations and it has proved to be a valuable tool.  Recently, we collaborated with the Department of technical training and started hosting online seminars and classes for them using Lab Manager.  Last week we had a fairly large class of users (approx. 45), each duty deploy 2 rather Beefy VMs that were very intensive resources (Jboss, SQL, Mail to name a few).  My colleague and I went through a lot of trials and planning to ensure that our infrastructure can handle the load while allowing our users to date at the same speed and reliability, so that they are used.

  Our Lab Manager ESX server pools made up of the following:

  5 HP DL380 G5 servers with 2 x Quad Core 2.8 GHZ processors (8 cores each) with 32 GB of RAM each

  2 HP DL580 G5 servers with 4 x Quad Core 2.8 GHZ processors (16 cores each) with 128 GB of RAM each

  When the class is running and everyone has made their 2 machines, we noticed for some reason, he was all on ESX2 and 3 deployment (380 s).  Then came the ESX alarms, use of 90% of memory, then more than 100% bringing the disk page.  The CPU usage was at a all time high.

  I look at the 2 580 s and there are about 4 virtual machines deployed on them.

  So my question is...

  How does he know where to launch a Virtual Lab Manager machine?  There's no sense 2 servers have been brought to the red zone, and almost overloaded when the 2 most powerful servers in my farm are nearly dormant.  I noticed sometimes in the past, but not this bad.  Normally, we have about 45-50 computers deployed at some point and it seems to spread them out properly.

  This group of training has access to the same LUN and ESX server with Betclick as any other organization that we have.

  We have decided hosting several sessions of training may be greater than this one and would like to know that the virtual machines will be distributed properly.

  I would like to know your opinion on this

  First to answer your question, then make guess what happens.

  As indicated in response Ilya, LM distributed VMs differently with active DRS resource pools and pools of resources without active DRS.

  LM place VMs when the DRS is not used.

  When DRS is used, we use the DRS admission control to select the host to place virtual machines.

  DRS is turned off, LM uses its own placement routine:

  For each virtual machine, LM filter all managed servers that cannot run the virtual machine. A complete list of patterns are:

  • The managed server has not enough memory or quota for virtual machine to run the virtual machine.

  • The host is not connected to the data store that is the virtual machine.

  • The virtual machine has active state (suspended) and the CPU of the server managed by the waking state has been captured is not compatible with the managed server currently considered.

  • The virtual machine has been a guest on 64-bit and the managed server is not 64-bit capable.

  • The virtual machine has more processors than the managed server.

  • The managed server is not accessible or is set to "prohibit deployments." Not reachable may mean that the lm-agent or its not to ping queries is not answer (this is visible in the list of managed server page).

  Once we have the complete list of eligible servers, we place the virtual machines on the host including the smallest (MemoryReservation % + CPUReservation %). By default, we reserve not CPU on LM VMs, this internship will be largely due to the memory on the host computers if you have not changed the settings of reservation of CPU on your virtual machines.

  For closed deploy to the PF3, force us all virtual machines to go on the same host, so if any virtual machines have any special data store / CPU type specification, all virtual machines is forced to go on this host. If there are conflicting requirements between different virtual machines in the same configuration, deployment will fail. Closed VMs also have another condition to check that is rarely achieved in practice: number of closed networks available on the managed server. By default, this is 20 and you will need more than 20 different configurations closed running on a managed server before you who will strike.  (LM4 allows Cross fencing host, so this does not apply in LM4).

  To make a guess blind because of your distribution problem - if you use the saved state and fencing, it's probably the type of processor.  Processor type can be checked on the host properties page.

  If you not are not I would check that the images can deploy on the 580 s by disabling the 380s and trying to deploy them.

  If you use DRS (which you're not), it could be due to deployment of virtual machines too fast for the algorithm of control for the entrance of VC.  An easy solution for this is to extinguish the DRS on the cluster manager of laboratory.

  We tested load internal repeatedly, the product QA in different laboratories, we run (LM has been used in VMworld Labs for the past couple years and internal systems of training and demonstration for our Organization implemented SE), so no need to worry about this.  I assure you that the first 'real' performance problem you will encounter will be almost certainly due to an overload of your storage array (too many IOPS / s)... and for that you have to distribute content in data warehouses and use techniques of creating paths to balance the load.

  Kind regards

  Steven

  Another thread on this: http://communities.vmware.com/message/1258902.

• Question about the use of sharing with several pools of resources

  The design of our environment vSphere has several pools of resources at the root, each series 'Normal' value stocks, and if the resources tab shows that each resource pool '% of the shares' value of 3%.

  However, some resource pools have 50 + VM and others have only 1 or 2.

  Is someone can confirm that this is wrong and that should have a pool of resources with more than VM have a proportionately higher value of action?  This assumes of course that all the resource pools are of same priority (be they makes me wonder why we use pools of resources at all... but that's another issue)

  The reason why I ask is that the 'worst deal allocation' is for memory and CPU is much higher on the pools of resources with multiple virtual machines, so it's obviously something in the algorithm of resource allocation that is aware of the total number of virtual machines in the pools. Resource pools are defined as extensible and I'm assuming that this "worst case allocation" would go down considerably as the cluster approached his ability, but I wanted to check before starting to change things...

  Welcome to the Forums - you are right to worry about this situation - check on http://www.yellow-bricks.com/2010/02/22/the-resource-pool-priority-pie-paradox/ for description - but don't worry Duncan also has a solution - http://www.yellow-bricks.com/2010/02/24/custom-shares-on-a-resource-pools-scripted/

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• An error occurred when DNS was questioned about the resource record (SRV) service location used to locate a domain controller Active Directory (AD DC) for the domain 'HAMI. LOCAL ".

  An error occurred when DNS was questioned about the resource record (SRV) service location used to locate a domain controller Active Directory (AD DC) for the domain 'HAMI. LOCAL ".

  The error was: "an existing connection was to be closed by the remote host".
  (0 x 00002746 WSAECONNRESET error code)

  The query was for the SRV record for _ldap._tcp.dc._msdcs. HAMI. LOCAL

  Hello

  Your question of Windows 7 is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public. Please post your question in the Forums TechNet Windows 7 Technet.

  Here is the link:
  http://social.technet.Microsoft.com/forums/en-us/w7itpronetworking/threads

  Hope this helps

• Question about the Oracle database resource management

  Good evening
  I have a question about Oracle database Resource Management (DRM) for Oracle Database 10 g. I had an incident which, in a development/UAT environment (different instances, same box, don't ask), a developer wrote a wrong SQL statement that consumed 99% of the CPU. Currently, there is no limit of resources on two cases of db, and the developers don't want limits. However, my manager wants a method to prevent something like this does not happen. If I use the Oracle database resources management, create a consumer group (called "DevEnv") at 40% CPU usage, what will happen if a user of DevEnv runs a bad SQL statement that normally consumes 90% CPU again? Anyone would take a different approach? Thank you.
  
  Sincerely,
  Sho Fukamachi

  782718 wrote:
  If users in the case of "db_uat" use 60% CPU would be users who belongs to DevEnv pending 'db_test' cannot be used more than 40% CPU, so their queries become slower at their end? I would like to know if this behavior works the same in an environment of multiple instances. Thank you.

  Yes, because the available processor would be 40%, they use more, while.

• pass fails with a missing resource pool alert

  Hi, I have a server dell power edge r510, with ESXi 5.0 is installed in it.

  in one of the virtual machines within this server, I installed Vcenter (I think that it is Version 5.1) everything was stable until the vcenter database gets 10 GB and crashed and I couldn't fix it. So I installed a new windows with vcenter 5.5 inside vps. and for this new vcenter reconnected to the server. so, I've reconfigured resource pools and VPS users again in this new vcenter.

  Watch ESXi host now as does not not to the vcenter. but all virtual machines inside the esxi server work without problems.  I can't reconnect to the host in vcenter, and I can't connect directly to the ESXi via vsphere client and root password.

  but I can log on to the esxi via ssh or console.

  from the console, I restarted the management services, but it does not help.

  the SSH, I ran the following commands:

  status /etc/init.d/vpxa #.

  vpxa is running

  status /etc/init.d/hostd #.

  pass is not running.

  When I restart pass, it is said has started, but after a few minutes still pass fails.

  l # /etc/init.d/hostd restart

  Watchdog - pass: PID of the file/var/run/vmware/watchdog-hostd. PID does not exist

  Watchdog - pass: impossible to end guard dog: no monitoring running processes to pass

  SH: you must specify which kill

  [421281] Begin ' pass ++ min = 0, swap, group = pass etc/vmware/hostd/config.xml', min-uptime = 60, max-fast-failures = 1, max-total-failures = 1000000, bg_pid_file = "

  pass began.

  **********************************************************

  status /etc/init.d/hostd #.

  pass is running.

  ***************************************************************

  but I can't use all the controls of esxcli.

  List of the allowedip of esxcli network firewall ruleset

  Connect to locahost failed: connection failure

  ************************************************************

  status /etc/init.d/hostd #.

  pass is not running.

  ***************************************************************

  I searched the problem on localhost, Ko, said check the CPU usage is below 90%, which is good in my esxtop, then says check network ports and pings, they were right, too, said to check/etc/hosts to 127.0.0.1 localhost entry and checking /etc/resolv.conf and they were right too. as I can ping localhost and localhost nslookup returns 127.0.0.1

  then I started reading the server logs and found this error output of vm-support: hostd.log

  [cntos58-64-Farzin - 105.vmx'] could not get the parameters of resource for a virtual machine under tension

  Award of the VM ' / vmfs/volumes/.../cntos58-64-Farzin-105.vmx' to the root resource pool - configured pool 'pool11' does not exist

  SysInfo error on return operation State: verification of Admission of cpu resource failure. See the VMkernel detailed error information log

  cntos58-64-Farzin - 105.vmx: vim.fault.InsufficientCpuResourcesFault

  *************************************************************************

  How can I change the list of resources of the VM to ssh when esxcli do not work?

  I am facing this problem recently, almost all the 5 days the server will respond is not in vcenter, restart the entire esxi server can solve the problem but it apears again.

  I think that resource in vcenter pools doesn't sync properly with the configuration of esxi, as when I connect to the server directly with root/vshpere it shows different configuration than what I see in vcenter!

  and I can't upgrade esxi host because there are about 10 VPSes important and stable running on this server which is my main server and I can not have time on this server or migrate virtual machines to a different server/IPs.

  because I'm not sure of the compatibility of the versions of drivers/bios nic with ESXi 5.5 and I fear that if I update the ESXi from 5.0 to 5.5 I face other questions strangers/downtime.

  I had the server up and running again, by editing this file: /etc/vmware/hostd/pools.xml

  then I found the VPS with id of the pool of resources 11 evil, changed for another pool of resources as the other virtual machines.

  2014 07-29 T 08: 38:52.64965Z

  2

  pool366

  and then made a

  restart the /etc/init.d/hostd

  all started working again without restarting the whole esxi server and turn off virtual machines, I have searched for about 1 day to solve this simple thing!

  even once when I made a few changes in the vcenter, and then restarted resource pool settings move it in ssh, it fails under vcenter changed the VM resource for a bad configuration pool.

  so I changed the resource pool manually xml and restarted spend, while vcenter can connect to the esxi host.

  then vcenter, again removed all the resource pools and created new resource pools. and this question of time is set.

  There was some resource pool configuration that was imported from esxi host to vcenter which was no longer available and has not been deleted in syncronizations between esxi and vcenter when changed resource pools. and the list of the missing resources caused problems.

• Understand how resource pools really work

  In the research on how to properly nail using the resources for the resource pools in our groups, I found that there are nuances that are not specifically documented about 'Booking' vs 'Limit' that relate to Resource Pools. If someone is an expert Resource Pool please chime. I am specifically looking for validation of what we believe is true.

  Here's the deal:

  So based on my interpretation of the response and our conception of resource pools, it looks like the 'limit' is always an important value that decided the full amount of the memory of the virtual computer (reserved memory + swapped memory shared memory + virtual memory) in a pool of resources to all virtual machines and does not imply that memory is drawn from a pool of resources of the parent.

  In our environment, we allow 'extensible booking '. Our question was, 'the value limit of importance. " We assumed that with the 'extensible' NOT VERIFIED that the value reserve limit didn't matter, even if it is not grayed out. So if the limit is not grayed out, it allows resources to be charged to the parent? I understand that this is not the case. In our case, the limit does not mean that the resources drawn from the parent, but seems rather this sets the cap of the memory of all virtual machines in the pool resource can use (reserved memory, expanded memory, shared memory + virtual memory).

  Example (1): we have a pool of resources called "Exchange-RP' 10 GB reserved, not expandable, and a limit of 20 GB. If we have 11 VMs each configured with 2 GB of ram (individual virtual machines have no reservation but the virtual machine is configured to 2 GB).

  We can power on the first 10 virtual machines (10 x 2 = 20 GB) but the 11 will not because it exceeds the limit.

  In this example how the 10VMs become the 2 GB? I guess everyone gets 1 GB of physical memory and consists of 1 GB of virtual memory (swap, shared, etc., not physical ram). At no time is issued physical memory of the mother.

  Example (2): given the exact scenario above. If the unlimited checkbox is enabled (limit is grey = unlimited), it would mean that the VM 11 would now be allowed to be turned on and booking of physical memory it is just must be shared by all the virtual machines in the pool. It seems that once that we receive too many virtual machines powered that there is too little physical ram per virtual computer and we will begin to see the excessive ballooning and swapping then in turn affect performance.

  Please confirm the above examples is accurate of how memory is managed.

  We are looking to validate that the RP limit value is always important as a strict limit of all memory used by the VMs, not only physical (reserved memory). None of the VMware documents speak to this.

  Thank you

  Jase

  Welcome to the Forums - example 1: I understand, it's the list resources should act as a host that you oversommit the memory assigned to the list of resources - so you should be able to on this 11th VM - with 11 VM all who are in need of 2 GB and with the limit set at 20 GB - if all VMs using their 2 GB and no page sharing occurring I expect to see ballooning by VM vmkernel swap files - now used if you have 2 GB reservations you would be able to turn on 5 VMs in this example because with 5 virtual machines would use you all 10 GB of memory reserved - value and the vmkernel will not power on a virtual machine if it cannot guarantee its reserve-

  Example 2 - see above - even with alimit together, you will be able to oversommit the memory in the RP - the only thing you will earn if you have the limit set to unlimited is that you be Basel to put multiple virtual machines and impact on all users on the ESx host or cluster -

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• Questions about an average of response spectrum and frequency of feeding mode.

  Hello

  I have a few questions about an average of mode. When I generate a sinusoidal signal from one output to two input channels channel to see if my DAQ card works well and vector averaged in the power spectrum for DFT, the amplitudes was different from the previous one of the amplitude, which was supposed to be 1 v peak. They range from 0.5 v to 0.6 v peak. When the calculation of the average model is RMS, the amplitudes were close to 1. I wonder what are the fomulas of RMS and average vector. Does that mean that I could not accurate if I use an average of vector? In a time of frequency response, why I coherences of difference and the amplitudes using the vector and the mean quadratic value?

  Thank you

  Ningyu

  rico1985,

  The differences in modes of generation are as they sound: 1 sample output only a sample writing, N samples will be released however many samples configure you for each entry, and the continuous samples released samples continuously until a specified user action happens (you press the stop button or a logic that you created gets fulfulled). The range of Signal output allows you to set a ceiling high and low level of your output signal and it only affects the quality keeping in this beach. Timing to set a deadline for the time between the acquisition of the sample. If a new sample becomes unavailable before the timeout setting, you will get an error. This is useful for looking at a network, because if the network goes down and you stop getting data from a machine and then you would like to know about it. I point you to those videos that are short tutorials on how to make the most of these actions in SignalExpress.The SignalExpress 3.0 Help file is also your first point of contact for all your questions on getting started. These two resources should get you up and running in SignalExpress in no time. (either by the way all your questions answered using these resources) Bravo!

• Questions about using HomeScreen.setBackgroundImage, please!

  I am currently make an app when a user presses a button, should change the wallpaper on the homescreen to an image of my application. I know that I need to use HomeScreen.setBackgroundImage (String URL) for this, but I have some questions about its use, that I have not found on the forums of the knowledge base.

  (1) I use PNG images, I realized I may have to change them into JPG, is this true? If it is true, can I just use PNG images in the first place, as in, use them in my application and also as the wallpaper?

  (2) how can I find the URL of the chain of my images, I store them in the folder resource in Eclipse. The URL will be the same for the simulator tests as it will be for the device?

  (3) what I need to make the images of persistent to keep them as a background image or the api will do that automatically whenever I create a new wallpaper?

  I hope that these are simple answers for you pro out there, thanks in advance!

  For anyone who needs help with this topic, the following website has answered most of my questions:

  http://blog.vimviv.com/BlackBerry/display-information-BlackBerry-homescreen/

• Windows 7 starts questions about mac and office 2010 following an installation

  It's a long cut as short as vent. I've been miss sold a record of upgrade of windows 8 full disk-shaped, with norton and office 2010. My goal of creating windows on my mac for a course I'm taking. After that know I need windows 7, I bought it online. I created a partition of 80g on my mac charge windows 7, then norton. Until I loaded the office that I was invited to perform the update from apple in the windows software 7. Note before I installed norton, I load boot camp mac utilities according to the instructions. So, followed by all as should be. The prompt update from apple was quick time, iTunes and airport, I checked all and then updated. Then I loaded office 2010 and obtained throughout the process from the Microsoft site. On the last part of the installation, the installation failed due to a mistake of hanging iTunes. I tried again and again, I fixed the update to iTunes to add and remove the section of windows. Then, I got different errors. I decided to remove the whole score without uninstalling all programs again. When I get to the windows live, that this falls priming. I get various error messages whenever I try to start the process. As a header of Bank pool, fatal error and so on. Can anyone help? What is the damage?

  Hello

  Thanks for posting your query in Microsoft Community.

  Because the question is limited to Windows 7 on your Mac with Boot Camp, I suggest you contact Apple Boot Camp support for assistance.

  http://www.Apple.com/support/Bootcamp/

  I hope it helps. If you have any questions about Windows in the future, please let us know. We will be happy to help you.

• A few questions about installing Windows on a Mac

  Hello world.

  I'm considering installing Windows on my 2006 iMac. I have a few questions I was hoping you might be able to help me with that. I know that this machine will run Windows 7 or 8, in terms of system resources, but probably doesn't have the RAM for 10.

  The girl has reached Apple Obsolescence and no longer can be upgraded to newer versions of Mac OS. Unfortunately, this also means that she can not get the latest version of iTunes and don't talk to my phone. But she still my entire library of music.

  I know that used at least iTunes is available on Windows, but I seem to remember that they took it. Y at - it an option to put my iTunes music on an iPhone 6 in a Windows environment? I don't mind if I need to convert files or otherwise work for her. I have just a few old out-of-print stuff that I really miss being able to listen to anywhere other than my office.

  I'm pretty much stuck with versions before 10, due to the RAM thing. Honestly, I haven't used Windows since around 1998, with the exception of a terminal XP at work, so I don't know much about it. Any recommendation on which version is the best? And I can buy a copy online directly from Microsoft?

  If I would be better off buying a new laptop for very cheap, it is also a possibility. But my Mac still works well, despite not being not supported for updates, and I hate wasting perfectly good material. I just don't have the money for another Mac right now.

  Hello

  Any questions on iTunes, the best place to ask the community Apple iTunes is their program, not Microsoft.

  @@@@@@@@@@@@@@@@@@

  Microsoft sells more XP, Vista, 7, or 8/8.1.

  End of sale: http://windows.microsoft.com/en-au/windows/lifecycle#section_2

  Try Amazon.com, etc.

  See if this helps you:

  "Install Windows 8.1 on a Mac".

  http://Windows.Microsoft.com/en-us/Windows-8/install-Windows-on-Mac

  And take a look at this article:

  "By using Boot Camp to install Windows and tools from dev on your Mac"

  https://msdn.Microsoft.com/en-us/library/Windows/apps/jj945423.aspx?f=255&MSPPError=-2147217396

  "Boot Camp 5.1: frequently asked questions about the installation of Windows 8.

  5.1 Boot Camp supports operating systems Windows 8.0 and 8.1 of Windows on Mac with Intel processor.

  https://support.Apple.com/en-us/HT201457

  See you soon.

• Questions about LogMiner.

  Greetings. We use 11G and have installed OEM, but not DB Diagnostic Pack. I have a few questions about this utility:

  (1) can be used if the Pack diagnosis DB is not installed? I ask because I know that some of these utilities are not available if it is not.

  (2) I know that I need to enable logging extra to use it. Is there any show / General cool space that are associated with?

  (3) are there any air show with the help of LogMiner itself? In particular, I could see what happens if analyzes the current journal.

  (4) what the tool commonly used to determine what query performance caused problems for awhile?

  Thank you!

  1 Yes. It is not part of a pack.
  2 of course additional recording will result in repeat. The impact on performance is usually not noticeable.

  3 the result of mining is placed in the shared pool and queries on v$ logmnr_contents ask shared pool this may cause reduced performance.

  4 n ° do not forget that you are again mining. This means DML. Selects won't be in your recovery.

  -------------

  Sybrand Bakker

  Senior Oracle DBA