Question about adding additional disks with voting rights (AIX cluster)

Similar Questions

• Discs with voting rights are not visible in 11 GR 2 under ASM

  Hi all
  
  I had built a 11.2.0.3 new CAR configuration at 2 knots.
  When I run crsctl query css votedisk - here is the list of discs with right to vote, but when I go to the spot using asmcmd, I am not able to see them.
  
  Is there a particular reason for it / problem with my installation.
  
  
  Thank you.

  Hello Sandeep

  sandeep_dba wrote:
  Is there a particular reason behind hide the file with the right to vote in ASM disk groups?

  hide? It is a strong word. Don't forget that asmcmd require an ASM instance to be operational. asmcmd is a convenience tool.

  Disks with voting rights are accessible even before that ASM is available, as CSS is started before ASM by profile of negotiators. Thus, discs with voting rights are stored in a specific location in the ASM disk itself header area. Fritz blogged about this: http://fritshoogland.wordpress.com/2010/03/03/where-is-the-voting-disk-in-asm/

  See you soon

  Dominique caly
  Blog: http://orainternals.wordpress.com/
  Oracle ACE Director and OakTable Member http://www.oaktable.net
  Fall 2012: [seminar advanced RAC | http://www.orainternals.com/services/training/advanced-rac-training/]

• Why drives with voting rights are always an odd number

  I have a query that why voting disk are always recommended in odd numbers.
  
  The voting disk must reside on a shared disk that is accessible by all nodes in the cluster. For high availability, Oracle recommends that you have several disks with voting rights. Oracle Clusterware can be configured to manage records with multiple voting rights (multiplexing), but you must have an odd number of voting records, such as three, five and so on. Oracle Clusterware supports a maximum of 32 disks with voting rights. If you set a single voting disk, then you must use external mirror to provide redundancy.
  
  A node must be able to access more than half the disks with right to vote at any time. For example, if you have five voting disks configured, then a node must be able to access at least three drives with right to vote at any time. If a node cannot access the required minimum number of discs with right to vote, it is expelled or removed from the cluster.
  
  Here I have a table:
  Total number of vdisk (n) Minimum vdisk required by nodes (> n/2) no vdisk can be failed at the same time
  1               1                         0
  2               1                         1
  3               2                         1
  4               2                         2
  5               3                         2
  6               3                         3
  7               4                         3
  Here, it is clear that it does not matter as the vdisk 4 or 5, the number of vdisk can be failed at the same time would be 2. So, not sure why an odd number of voting records are recommended.
  
  Please suggest.
  
  Kind regards
  Dheeraj van Voorde

  (1) why don't we not create an odd number of voting record?
  With regard to the vote of the disks are concerned, a node must be able to access exclusively more than half of the discs with the right to vote at any time. So if you want to be able to tolerate a failure of n disks to vote, you must have at least 2n + 1 configured. (n = 1 means 3 discs with voting rights). You can configure up to 32 drives with right to vote, providing protection against the 15 simultaneous disk failures.
  Oracle recommends that customers use drives 3 or more with right to vote in Oracle RAC 10g Release 2. Note: For best availability, 3 files of voting should be separate physical disks. It is recommended to use an odd number as 4 drives will be more highly available than 3 disks, 3 1/2 is 1.5... rounded up to 2, 4 1/2 is 2, once we lose 2 discs, our cluster fails with 4 disks with voting rights or 3 discs with right to vote.

  (2) only the cluster checks actually for the counting of the votes before node eviction? If so, could you expain this process briefly?
  Yes. If you lose half or more than all your discs with right to vote, then nodes get evicted from the cluster, or nodes to expel from the cluster.

  (3) what is the logic behind the documentaion note which says "each node must be able to see more than half the disks with right to vote at any time"?
  The answer to the first question is will also answer this question.

  answered by: Silva
  Reference: Question on voting drive
  Question on voting drive

• Adding additional disk space to Perc 6 / i server R710

  I have currently 3 250 GB installation as a raid 5 (original configuration) disks on a server R710 with a Perc 6 / i controller.  I ordered 3 discs (same readers) that we are running out of disk space. There is a set up disk C: and D:.  Can someone point me to instructions for adding these additional disks for the raid existing (drive D) without having dataloss?

  Thank you

  Gary

  If you don't have that one 'disk' listed in disk management, then you have only a single VD configured, which is good.

  You must install OMSA to broaden your VD. You then insert your new drives, make sure that they show as ready under physical disks, then go to virtual disks and select Reconfigure to your RAID 5. Adding two drives in your RAID 5 will add about 500GB (bit math makes it a little less) to your current Windows 'disk '. After the reconfigure statement, you will have something similar to below. Then, assuming that you do not run 2003, you click on the D: drive and choose Extend to finish with the second photo:

  

• A few questions about Toshiab reocvery disk for Satellite P300-133

  Hello guys,.
  I had a few questions about unpleasant surprises of recovery:

  (* 1) * I just make recovery DVD using Toshiba Recovery Disk Creator and he asked initially for 2 DVDs - but when one has been done it does not require a second blank DVD. Is it possible all the Windows Vista system files to write on 1 DVD?

  (* 2) * if I could reinstall Windows Vista using recovery of HARD drive option (by pressing F8) without using the recovery DVD?

  (* 3) * HARD drive partitions that will be formatted (just system C: or C: and E :) using HARD drive recovery?

  (* 4) * what is DVD - Image of the hard drives or the installation of Vista recovery files?

  Its pretty bad idea to not include BONES on DVD when I paid for it.
  Thanks for all the Toshiba problems :(

  1. I think the recovery disk creator means 2 CDs. I also have a Portege M700 with Windows Vista and a DVD. I got it and after that, I have a clean install of Vista with all the drivers and tools of Toshiba. Nothing is missing.

  2. Yes, you can reinstall Vista using recovery of HARD drive option when you press F8 at startup. You don't need the recovery DVDs, but you should create a when your HARD drive get some errors or something else. If you need a new recovery DVDs, you paid for one.

  3 HARD drive and complete partitions will be formatted, so backup your data first on a DVD disk external DRIVE, USB stick or something else.
  After the reinstallation, you have factory settings.

  4. the recovery DVDs is an image of the HARD disk on the factory settings. If you perform a recovery, there are all the drivers and tools are already installed. Of course, on the disk are files of installations of Vista, but you can use this DVD on your Satellite P300. The disc cannot be used on another Satellite or on a PC.

  If you have any other questions, take a look in the user manual. There are a number in the formations of the recovery. It s in Chapter 3.

• Question about thin provisioned disks

  I did some searching but can't find specific answers, I need and I apologize in advance if these questions are public knowledge. I know also my setup is very small compared to most houses VMWare normally using these forums, but we are moving slowly in the 2nd Decade of the 21st century (or try).

  I have a new install ESXi 5 and move during one ESX3 host that has about a dozen of VMs on it.  I recently built vCenter host servers and my future view connection server.  I'm kind to vCenter again as my previous installation of ESX 3 was a single server and us were not investing in the vCenter at the time option (missed a lot of features and ease of upgrade during this transition, but 20/20 declining).  I'm a little green in using vCenter so take pitty on my ignorance.

  It's more time than I wanted to and I just want to know the best way to change these 2 servers (recently built and configured systems Win 2008 R2) to thin provisioned disks.  I need to keep all the storage space I can and beyond the obvious problem of being able to provide more space than you physically, I have no problem to do so (in addition to get them changed).  If there are negatives I'm missing, please report them to me.  The possiblities that I see are:

  The clone and thin provision then delete the originals.

  Use the stand-alone converter on them (from above).

  Completely rebuild thin provisioned with disks.

  If someone can give me a quick list of possible problems and pitfalls for these opportunities or to get to a better suggestion, please do so and thanks in advance.

  Manual of Clark

  PRIMOS Inc.

  Since you have storage vMotion the clone or standalone VMware converter are both viable options.   Not sure about the disadvantages of these options.

  You didn't say what kind of server it is, but I'm always careful about the cloning of the domain controllers.   Without the option for storage vmotion I rebuild a DC from scratch.

  Post edited by: mittim12

• Questions about adding a NAS to the existing environment

  Hello

  We have an existing deployment of VI with an EMC SAN and three ESX host.  We would like to add additional storage to NAS and storage ISO tests.  To do this, we were going to set up a RHEL 5 server, as others on the forum have done and use NFS to provide a data store for ESX.  However, I have some questions that I found only partial answers on the forum.

  (1) is there a performance by adding NAS on the network of IP storage for the existing deployment of VI?  Our EMC SAN uses iSCSI to provide a storage boxes currently.  Mix iSCSI and NFS on the IP storage networking a bad idea to turn performance and stability?  Anyone done this?  Looks like a logical thing to do that many small deployments may not afford to buy company for test/development equipment and storage ISO.

  (2) what are the security implications of placing an NFS server on Red Hat-based IP storage network?  How to do this safely?  All posts of forum and documentation of security seem to focus on the need to separate the traffic of IP storage (which is clear text) to run virtual machines or physical servers.  In order to add the NAS on the network of storage, we allow access to the Red Hat server for IP storage network.

  (3) is there a way to limit the traffic on the network interface facing the storage over IP to NFS network only?  We would be two interfaces on the server Red Hat to fight against it, as our network of IP storage is not returned to the other networks in some way.  It is an isolated network by design, for security reasons.  Thus, we would need an interface connected to the stroage and one IP network that is connected to one of our management systems.

  Thank you.  I appreciate your help.

  James

  Hello

  I can understand a problem of pure load.  What I meant is there at - it a greater load on the servers simply having to use two different storage (NFS and iSCSI) protocols?  Or is it better to use iSCSI on the storage of test/development device so that we only configuring and using a storage Protocol?

  There is some overhead in the vmkernel, but it is also to be expected.

  I think that it is at the heart of the case.  I don't use a full OS is the way to go for me.  I'm really a Windows administrator and my knowledge of Red Hat is somewhat lacking.  On this basis, it may be preferable to use a storage OS like Openfiler or NexentaStor.  Do you have an opinion on which one is more stable or efficient?

  Openfiler is Linux or FreeBSD. I still have to examine in detail, but in both cases, they are both complete BONES. Openfiler is much easier to use, however, and will be iSCSI or NFS. If it were me, and I didn't know anything about Linux, I'd use Openfiler.

  VMs allows access to the storage indirectly however ESX.

  Great, so he can participate in your existing IP storage network.  Configure web access (management) to Openfiler being on the same network as for existing SAN management application. Then have your data on the IP storage network.

  Best regards

  Edward L. Haletky

  VMware communities user moderator

  ====

  Author of the book "VMWare ESX Server in the enterprise: planning and securing virtualization servers, Copyright 2008 Pearson Education.»

  Blue gears and SearchVMware Pro Articles: http://www.astroarch.com/wiki/index.php/Blog_Roll

  Security Virtualization top of page links: http://www.astroarch.com/wiki/index.php/Top_Virtualization_Security_Links

• Questions about adding a Skype number

  First timer here, here are my questions, I live in Thailand, former U.S. citizen, have for years had major problems with government agencies to reach me by phone. My billing address is in CA, my verified phone number is thai. I believe that with a Skype CA phone number I can eliminate these problems, correct? As the Government agencies and US automated banking systems cannot recognize a 11 digit number.

  OK, so I did not have a first core of Galaxy attached to any diet, talk with a slot for sim card available. My intention is to buy a prepay sim for the available location local, and then add a Skype number. This Skype number wouldn't be usable wifi connected. A one year subscription is $52.25, but the site says nothing about other calling some how fees, or I've missed?

  With the second sim with a Skype number, dedicated to the United States calls only, and I was able to differentiate between the two by which the sim was used to receive the call. I receive a message if a call was made for me if it is not connected to wifi?

  Could I have the call transferred to my Thai number, if I were to buy call forwarding also?

  I intend to wait until I have answers from the community before I do anything.

  Thanks in advance for those who add their comments.

  Hi, what you're trying to do is possible in principle, but you do not add the number of Skype to a SIM.

  What happens, is that you install the Skype app on Google Store on your base premium Galaxy then receive calls and outgoing calls via the Skype in wifi or mobile data, if you add a local SIM card.

  Check Skype calling subscriptions and distribution rates to the United States and the Thailand (subscriptions especially if you make a lot of calls or transfer calls to a number of Thai). If you buy a subscription or even 2 subscriptions (1 USA and 1 Thai) then you get a 50% discount when you buy a Skype number for 12 months, which is a good deal.

  The application on your Galaxy will inform you of all the missed calls. I suggest you only install Skype on a PC too to see the full selection of purchase options in Tools/Options. You must configure the voicemail here and select this option to allow anyone to call your Skype number. Spend some time looking at all the options that are available to you.

  You can transfer your Skype CA number to a number of Thai, if you wish and have a subscription or a credit to pay for it.

  Perhaps start by installing Skype on your base premium Galaxy from the game store, sign in with your account and take a look at all the parameters available on the app. Setting most are in the app now except setting up voicemail that can be made on the program Skype on a PC.

• General question about adding storage Readynas 204

  I have Readynas204 on x-raid with three discs of 3 TB sends me some 5.45 TB of storage. Yesterday I added another 3 TB and readynas recognized without any problems but the storage size has not changed. I installed the new drive straight out of the box and I don't think that it should reformat because the drive status is green and the 'Format' button is grayed. The State is green, but that is to say the reconstruction of the volume. My question is I am suppsed to see the storage of 8,38 to size once the volume rebuild process is finished? or I suppsed to see increased storage size rightaway after adding the 4th disc? Thought I should ask this here first before submitting a ticket. Thank you

  You should see the larger size when the rebuild is complete.

• Question about particular processor working with my PC.

  Basically, I have a 1200-07w eMachines and I'm sure that a particular processor will work with my pc but I wanted to check before I bought it. The I am wanting to upgrade to the processor is an AMD Athlon 64 X 2-5050. I know Athlon X 2 works, but I wanted to make sure that the Athlon 64 X 2 is compatible as well.

  Thank you

  It would be better to check with eMachines Support technique http://emachines.com/support/options.html where they know their systems better than we do and should be able to answer your question.  We have no information on what components go into what systems so we can really help you.  The best that we can do is refer you to the center of Vista compatibility where this component may or may not be listed:http://www.microsoft.com/windows/compatibility/windows-vista/ (I checked but couldn't find) but that would be only you say about compatibility with your version of Vista (if it is listed) - not if it will work with your machine - and you should take note that using the wrong processor can cause damage to both it and the motherboard and other features as well - so maybe SOME before you install.

  I hope this helps.

  Good luck!

  Lorien - MCSA/MCSE/network + / has + - if this post solves your problem, please click the 'Mark as answer' or 'Useful' button at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.

• question about creating virtual disks on my MD3220i

  I create a virtual disk where I put a SQL Server and it asks me to

  Choose the type of virtual disk IO characteristics. The file system (typical), database, multimedia and Custom options.

  I think the selection of data because it is a SQL Server. However I'm not sure because I have not much of

  experience with this. My question is that one should choose or perhaps not even matter?

  Thank you

  Being that the VD will be strictly for SQL, then you can go ahead and select the database option. Any other time, you must select the typical option. Please let me know if you have any questions or concerns.

• Adding additional disk to ESXi 4.1 Datastore on Dell PowerEdge R710

  Greetings,

  We currently have a Dell PowerEdge R710 with 6 SAS das drives configured in a RAID-1/RAID-5 configuration. A drive is configured as a global hot spare. I would add this spare drive in the RAID-5 table, where some virtual machines live, to recover additional space. Has someone managed to do this? Is the only way via the PERC BIOS management utility?

  Thank you!

  I'm not part "raid-1/raid-5.  But assuming that the table is raid-5, then yes it is possible and yes the BIOS utility is necessary.  The hot spare is currently set should be removed from this role, then added to the existing Bay raid-5, but without the ability to select increase.  This will create free space on the raid-5 array on which then a new logical volume can be created, which will be then seen by ESX as a new drive and therefore another data store can be added to this (or it can be added to the first as a measure).  HTH

  http://blog.peacon.co.UK

  Please give points for any helpful answer.

  Unofficial list of transfer USB devices work

• Adding additional disk

  Hello, I'm trying to add an additional drive. I am what is stated in the manual, the drive visible in to et setting. After starting the VM image, the disk does not exist.

  VMware 6.5.2, WinXP.

  Thank you, Hervé

  Hello

  In going to you your "my computer".

  'Manage '.

  "Disk management".

  Right click of button "Analyze the new discs"

  And you should find your happiness...

• Question about data storage disk and its related material

  DB version: 11 GR 2
  
  To set up the CARS, I have x 86 (Intel) 2 PCs of the same specification. I'm going to install Solaris 5.10 (x 86) on both. I don't want to use VM ware or Openfiler.
  
  Question1.
  I would like to know what storage device that I use for installation at home of RAC?
  
  Question2.
  What additional hardware (cards) should I add to both nodes to connect to this network storage system?
  
  Published by: ScottsTiger on October 6, 2010 03:27

  ScottsTiger wrote:
  DB version: 11 GR 2
       
  To set up the CARS, I have x 86 (Intel) 2 PCs of the same specification. I'm going to install Solaris 5.10 (x 86) on both. I don't want to use VM ware or Openfiler.
       
  Question1.
  I would like to know what storage device that I use for installation at home of RAC?

  FireWire. Nothing else really which is pretty cheap for a "budget home" and always meets the needs of Basic for a RAC storage. You can pick up 1 TB and more big disk Firewire 800 external, with 2 ports - allows to connect two machines on the external drive at the same time.

  It is "sort of" supported by Oracle off-production - or has been in the past.

  Not sure if Solaris kernel Firewire driver required to support this well - only made on Linux myself.

  Question2.
  What additional hardware (cards) should I add to both nodes to connect to this network storage system?

  PCI FireWire cards if you have not already shipped Firewire 800 ports on these 2 systems.

  PS. had a quick look at support.oracle.com and found the following note: ' + how to install a cluster using firewire to access a shared disc on RHEL4/EL4 [ID 433889.1] + '. Nothing on Solaris if. Why Solaris btw? Especially on x 86? Linux is a much more commonly used o/s for RAC clusters.

• Question about localization of CHM with RH7

  Hello world
  I am a user of long date HR (since 1997), currently on the X 5 and research in Version 7 of its localization features. X 5 uses a .lng file to customize Viewer HTMLHelp interface. Supports for the .lng files continue in v7? These .lng files works for the Chinese and the Japanese too?
  
  (Of course that I could download the trial and see, but I've read the threads "heads-up" on not to do it unless of course you are going to be upgraded.) So err on the side of caution and not yet get the trial.)
  
  Thank you!

  First report of the 'good news': the trial of RH7 coexists peacefully with my X 5. Can I have both open at the same time, if necessary - X 5 for the production of works and 7 for the test.

  Second point of "good news":
  I am happy to find that RH7 has maintained the use of the .lng file to customize Viewer HTMLHelp interface. (Something that the competitor Flare can't do, btw.) And a long list of additional languages (including Chinese and Japanese, I need) has been added as well. RH7 includes the previously translated .lng files. no need to send out the terms to your translation service. Just go to file > project settings and select the appropriate language, and then click the Advanced button. The .lng file is opened; Click OK and it is added as a background element to your project. * This is the same that it worked in X 5, just with more languages now! :)

  When compiling, the CHM Viewer is supposed to be located. The only problem (Report of RH X 5) is that Windows native language is necessary to really see the locations in the CHM Viewer. Maybe our translation service people have no English versions of Windows and would be able to test these localized CHMS for me.

  It is enough information but, for me, to say my purchase decision management: I need RH7 and not 'competitor '! ;)