Oracle ASM normal, high and external redundancy

Similar Questions

• ASM external redundancy and the number of disks

  Hello
  
  
  We are about to install a solution RAC on IBM AIX 5.3 LPAR and VIO.
  According to Oracle certification, we are forced to use DSO (11 g) for storage.
  Because we have a huge SAN solution for all our systems, also the installation of the DSO will run on the SAN
  The complete SAN is in a RAID5 or RAID10 configuration. This automatically means that we will use external redundancy
  The database that will be placed on the system is currently around 50 GB in size.
  
  Now that you guys and women think how to set start, if
  
  one)
  We set up initially only 1 disc in the diskgroup to 60 GB for example,
  ASM does support the ability to increase a logical disk, because we are currently used, using the VIO Server?
  If it is not supported there so if the diskgroup needs to be extended, add another disk the same size, or we can add disks with smaller sizes
  
  (b)
  We set up initially more discs of small size in the diskgroup, making a total of 60 GB
  ASM will probably begin the distribution of the data on the three disks.
  Overhead that does?
  That this has a negative impact, because the three logical drives are already in a striped solution (RAID10)?
  
  
  (If the extension of the logical drive using the VIO in Setup a) only supported, automatically end up in b).
  But I would like to know head/experiences and advice.
  
  Thanks in advance
  
  FJF

  You can increase the size of the logical unit number, which is a Member
  ASM diskgroup, after that, to increase
  the disk partition of this LUN to cover the new size of this LUN,
  and the last step is to tell ASM this member disk has been resized
  "alter diskgroup resizing disk.

• If you use network storage, configure ASM disks with external redundancy groups

  Hi Experts,

  If you use network storage, configure ASM disks with external redundancy groups. Don't use groups of Oracle ASM failure. Oracle failure groups consume cycles additional CPU and can run in unpredictable ways after suffering from a disk failure. When you use external redundancy, disk failure are transparent to the database and do consume no additional database CPU cycle, because it is discharged on storage processors.

  This does not mean

  • RAID 1 + 0 for diskgroup + REDO1
  • RAID 1 + 0 for diskgroup + REDO2
  • RAID 5 for diskgroup + DATA
  • RAID 5 for diskgroup + FRA

  Is this one suggested, the recommended best practices for oracle on VMWARE?

  
  

  Thank you and best regards,

  IVW

  
  

  Hello

  You can check the storage analysis as well...

  http://www.Dell.com/downloads/global/solutions/tradeoffs_RAID5_RAID10.PDF

  discussion of the Oracle

  https://asktom.Oracle.com/pls/asktom/f?p=100:11:P11_QUESTION_ID:359617936136

• Oracle ASM, SAN and VMware

  Hello

  I have a question about using Oracle ASM. If I only have a single physical disk of SAN (2 disks mirrored) IO isolated for an Oracle VM is there anywhere in the ASM application in file system VMs by creating several virtual disks to support ASM so everything is still really only to access physical disks? It's the first time that I have to do an Oracle VM install and I want to ensure that the directors have the info just to set up the DB.

  I see it's #14 tip in the doc of advice Essentiual deployment using Oracle ASM, but it says nothing about the assumptions... for example: is there more than one physical disk? I think the DBA doesn't want to bother with ASM as there is only a single physical disk under this virtual machine, but we are in a virtual world now and I think that the same would be true for a physical server are necessarily the case for a virtual.

  Thank you

  You only have a drive and a 100 MB database?   In this case, ASM is probably an extra layer of complexity which is not necessary.

  ASM is much more suited for the dissemination of data piles of many, and in cases where the management of database space is a consideration.

• Can I culture a PIP video, so this step appears a portrait video (high and narrow) on my normal video?

  Can I culture a PIP video, so this step appears a portrait video (high and narrow) on my normal video?  Or insert a video portrait PIP - without black bars that appear on either side to fill a widescreen preset?

  Tron

  After you apply the effect of cropping (fx effects/processing/crop), you change the cropping effect under apply effects/Applied effects Palette/panel expanded Crop which is placed there once you apply the crop effect to the clip. Please see screenshot for the expanded Panel harvest sliders that allow a culture you want.

  Good idea to watch the first Elements 12 Mac tryout to make sure that the program is compatible with your IT environment and responds to the needs of your video.

  If you do the crop with the crop effect, you shouldn't have to use the presets for PiP under fx effects/Presets for all of this. The effects of culture works on photos and videos. The program comes with a working space Expert and fast. For the FX transform cultures, see the Expert work.

  It would seem that Yes to your questions. But, certainly, do not buy until you have removed from the trial.

  We will follow your progress.

  RTA

• Need to find the Oracle Session with high CPU consumption and process of the BONE

  Hello
  
  I find the high use of the processor by the command "prstat. The host is running Solaris 5.10 64-bit with a database of Oracle 10.2.0.4.
  
  The grid, the high command is not available. What is the best way to find Oracle sessions using high processor and operating system processes.
  
  Thanks in advance.
  
  -Asif

  naveed27c wrote:
  Thanks, Justin.

  I have alread think SQL from Google. Now the problem is that I find the process of operating system level of Solaris.

  You can join V$ SESSION on the SID. The column PROCESS in V$ SESSION is the ID of the client operating system process.

  Justin

• Prepare disks for ASM (data files and FRA)

  I intend to place data files on a disc 1 (sd1) and disk2 (PSD) when the backup of files (FRA) on disk3 (SDC). Here's how I'd do:
  
  For data files
  Disk1 is divided into a single primary partition (with native Linux what ID 83 not formatted system)
  Disk2 is also divided into a single primary partition (with native Linux ID 83 system not formatted)
  
  oracleasm createdisk vol1/dev/sda1
  oracleasm createdisk vol2/dev/sdb1
  
  CREATE DISKGROUP DATA EXTERNAL vol1, vol2 REDUNDANCY;
  
  
  For backup FRA
  
  Disk3 is partitioned into four primary partitions: / Boot (ext3), / (ext3), swap (swap) and /u01 (ext3)
  
  The FRA will be put under the/U01 and then attend the ASM:
  
  oracleasm vol3/dev/sdc4 createdisk
  CREATE DISKGROUP DATA EXTERNAL vol3 REDUNDANCY;
  
  Now, the problem. (1) the/U01 has already be formatted in ext3; (2) Oracle (DBMS) software will also be place under/U01
  
  It will be a problem?
  
  
  Otherwise, I can put FRA on the same drive as the data files, i.e. on disk1 and disk2. In this case, I need to partition the disk 1 in two primary parititions sda1 and sda2 (native Linux system ID 83 not formatted), one for data files and another for FRA (do the same for disk2). The downside is that the data file and the file recovery will be on the same hard drive.
  
  
  Please offer some suggestions.
  
  
  Thank you
  
  Scott
  
  PS: in the environment of production, all the disc 1, 2 and 3 will be on hardware RAID 1.

  RAID 1 will protect you only a device failure. It won't protect you partition, the file damage system or user errors; It will be in the image of the errors and problems like any other data.

  So what happens if you delete by mistake / U01 or some other accident happens and you loose that partition? With your current setup, you will lose everything and will not be able to restore or recover the database. Put tablespaces FRA and DB on the same physical device is certainly a very bad idea, whether or not it is a RAID.

  ASM is not a software RAID 1 mirror. It ensures redundancy of data based on file extensions and knows about files of Oracle database, which is a very good thing. You probably do not want to specify 'external redundancy.

  In a production system, you'll certainly want to mux the critical data and to store the DB controlfiles, redo logs and finally archivelogs on media separate physically in order to avoid the single point of failures wherever possible. You can use partitions and volumes in ASM, but they should be separate physical drives, otherwise you will bypass the ASM data redundancy. You must also have a solid strategy for RMAN backup. The FRA is supposed to store backupsets RMAN, copies of the image, the important archivelogs and multiplexes of the copies of the database files and should therefore always on a separate physical disk.

  Unless you simply play, I strongly suggest that review you your current configuration.

  Published by: Dude on June 29, 2012 04:55

• How to avoid the brain while using external redundancy.

  Hi all

  When Oracle creates disk to vote who is in external redundancy he writes only in a single drive even if we provide 3 disks for the disk group. In this scenario, what will happen during the expulsion of node. Is there a scenario of split brain.

  Ajay

  Ajay Vijayan wrote:

  I would like to know more about it. How do the multiple vote available in external redundancy disk?

  You can not. If you want three voice files, use a group configured for normal redundancy.

• File system for FRA and external backups

  Oracle 11g R2.

  The FRA drive is formatted using Linux x 83 put on Diskgroup + FRA system.

  Backups are stored outside on an ext3 file system.

  Suppose now the database gets completely crashed and I need to recover by continuing external backups.  I will copy the external backups to the + FRA disk and then perform the recovery from there.

  My question is, given that external backups are on ext3 file system, while the FRA is the Oracle ASM filesystem, there will be a problem for the use of the file systems of the two difference?

  Thank you

  Scott

  scottjhn wrote:

  To summarize the issue:

  In my system, the database will be on ASM disk group + DATA (disk1 disk2).

  I will use another disk, disk3 (ext3 file system) for FRA, to organize data files backups and multiplexed logs (archive logs, online newspapers and control files).

  Earlier you said "I'll use the + FRA (ASM disk group) for the fast recovery area that holds that archiving multiplexed logs, recovery online logs, and control files.»  Nothing else. »

  Now, I need one more place to hold the copy of the multiplexed logs.

  Wouldn't not on the same + (ABOVE)?  Alternatively, use a disk full-fledged, disk4 (ext3 file system)?

  Thank you

  Scott

  First of all, the reason for multiplexing online redo logs and control files is not the same as that of multiplexing archivelogs. Do it online and the control file are actually a part of the database.  The database will not work without them.  This is why it is so important to have multiplex.  Archivelogs, on the other hand, are part of your backup strategy.  The database itself really doesn't care if you have any archivelogs at all.  The archivelogs multiplexing is much less common.  I have never multiplexed mine, but I do not have a task that runs every hour to copy any newly created on a server off-site.

  If your database is on ASM, at least a control file and a member of each group of redo log must be in ASM.  Technically, is not having to be, but it's really foolish not to do so.  Where to put the second copy?  Probably several schools of thought on this.  If your FRA is on ext3, so it seems a simple decision... a FRA copy, a copy in its default location in ASM.

• Satellite A45 - the CPU usage is high and slow applications

  Hi all

  I'm trying to debug a hardware problem on my Toshiba Satellite A45. I am running Ubuntu 10.04, but I don't think that it's operating system or related software.

  THE PROBLEM: The CPU usage is high and applications slowly to a crawl after using an intensive application of memory for a few minutes, i.e. to watch a video or a game. Basically, anything that could use the screen much. If instead, I work only from a prompt, even when the application could do a lot of work, I do not encounter this problem. After stopping all applications, the CPU usage is always higher than normal (90% idle, should normally be slowed down to about 99%).

  Xorg now typically showing about 6% (normally use< 2%).="" if="" i="" at="" any="" time="" after="" this="" try="" to="" work="" in="" any="" application,="" usage="" is="" still="" bogged="" down.="" only="" a="" reset="" gets="" me="" back="" to="">

  Note: My system has always worked very well and I did not made the installation of the software or changes when it started to happen.
  However, the laptop is a 800 miles round trip at the rear of the car in a padded bag.

  DEBUG: This doesn't seem to be the RAM that I replaced the RAM and reinstall the RAM, and the problem persists. This doesn't seem to be the hard drive that I can try to run it from a Live CD (without use of HARD drive) and yet everything slows to a crawl.

  HELP: I don't know how to debug from here.
  I don't have extra pieces of hardware to make swaps.

  Any ideas more how to debug this?

  Thank you
  Grommit

  Hello

  > I am running Ubuntu 10.04, but I don't think that it's operating system or related software.
  It s interesting why you think that this may be software related issue

  I think that it is a typical software problem because the RAM and the HARD drive has been verified you have reported this in the message

  So what to say maybe some virus or malware likely to obstruct the CPU and the memory usage
  Or there is some process in the background that are not properly

  I recommend you to reinstall the Windows operating system or another distribution of Linux that runs NO Live CD, but which is installed on the HARD drive
  I m sure that s kind of the process that is disabled and crashes somewhere in the background

• E3000 and external hard drive (USB and Ethernet

  I learned my first lesson the hard way.  'Assume' that you buy a new router that it will work with other new technology equipment.  Cisco needs to print somewhere in the product descriptions, their record of router there are size limits on external hard drives.  I got burned after buying a 3 to WD USB 3.0 hard drive that I can't use it on my current E3000 or their last E4200.  At least support knew this answer fast enough.  My bad for not taking the time to reflect, I search this site to find the list of external USB drives that will work with the E3000.

  All I wanted to do was store multimedia files on a shared network drive.  I'm cheating the system now and using a shared drive on the main PC.  The whole point of my project is not not to have the main PC running to share media.

  Before this old router of 60 day of scrap, has anyone had experiences on the use of WDs My Life 2 to external HD connection ETHERNET?

  Someone actually one of these drives installed on an E3000 using win xp pro?  I search high and low here, but couldn't find a list of acceptable external Ethernet disks or the size limitations.

  Burned once, lesson learned, don't get burned again.

  Thank you

  If your external drive supports Ethernet, then you will be able to use it with your router.

  Wired the external drive to your router using an Ethernet cable, then connect the router configuration page and click on the status tab and below click on the "Local area network" sub-tab and click on "DHCP Client" in the table of client DHCP list you will find the IP address for the external drive. Using this IP address, you can map the drive on your computer.

  To map the drive on your computer, click on start - RUN - type "\\External address IP Drive", and click ok... When you are prompted for the type of user name and password for the user name and password click OK, now you should be able to see the folders that you created, right-click on it and select map network drive and click Finish.

• Internal and external drives hard. Vista and XP recognizes the limits? The partitions ok?

  Hello. I had a few questions. It focuses on internal and external HDD. I have Vista and XP. I read a bit of info I would like to shed some light on.

  I watched an external HARD disc. A Western Digital 2 to My Book Studio Edition II external HARD drive, USB 2.0 / FireWire 800 / eSATA. In the end what he says:

  The system configuration required

  • Available USB port, FireWire 800 or 400 port, port eSATA or eSATA adapter card
  • Mac OS X 10.5.2 10.4.10+, +.
  • Windows 2000/XP/Vista
    Note: the 4 TB version works with Windows® Vista only. Windows 2000/XP do not support hard drives with capacities above 2 TB.

  I guess it's true. So: If someone were to buy a 4 TB model: can you even plug the drive in Windows XP and then partition it in two? Or will it give errors or not be recognized?

  What about Windows 7? I guess it's more advanced than Vista. Obviously.

  I am looking for 3 Tb + internal and external HARD drive. I can not find them. I ' v looked on the websites Seagates and Western Digital, Future Shop and Best Buy, local stores, etc. Maybe I missed them. I think I can start to see well for the holiday season.

  Thank you.

  I don't think that there may be a problem with xp sp3. I don't know with vista sp2 and 7 should work for you.

  BIOS update is also important.

  High-Tech http://www.computerstar.ca/datarecovery.html

• Creation of Oracle ASM agent - collections allow the BONE?

  If an agent has already been created for a given instance of Oracle and an agent has already been created for the host operating system that the Oracle instance is installed on, then creating a 3rd agent to monitor Oracle ASM on the same host, you are given the option of 'collections Enable OS' on the host operating system platform.

  It is not clear to me that the impact is to select Yes or no here, given that I've already created other officers. Does anyone have any idea on this?

  Thank you.

  It seems that in your case the operating system is already be montiored so you don't need to create the home screen again. If you enable it, it will create another agent of the OS.

  Golan

• Types of keyboard uppercase with CAPS lock OFF and vice versa - with laptop and same and external keyboard the on-screen keyboard

  During the night, something happened to the way that Windows 8 reads at the entrance to the keyboard.  It doesn't matter if I use the laptop keyboard, external wireless keyboard or pop-up on-screen keyboard, the results are the same.

  If SHIFT CAPS LOCK is DISABLED, the entrance presents itself as CAPS.

  If SHIFT CAPS LOCK is enabled, the entry is lowercase

  Regardless of the status of CAPS, entered numberic is impossible, either from the top row of keys OR number pad (with NumLock on or off).

  It is therefore impossible to connect to the computer as the password there.

  The laptop is an ASUS (sorry, don't know not the model and it's home now while I'm at work), bought in the last 2 months.  Everything worked great yesterday.

  Any help is greatly appreciated!

  Fixed!  Here is the solution:

  "By pressing the right SHIFT key for 8 seconds in the word 2003is filters a shortcut keys. When you click Cancel if it changes the configuration of the keyboard. When you press a letter key you will get capital, even if you don't have a behaviour the key to the capital. When you press a number key, you will get the symbol above the key as if you had hit the SHIFT key with her.

  To correct this problem and return to the normal mode by default words

  Press the two SHIFT KEYS at the same time. This will cancel the change in the configuration of the keyboard.

  To cancel the shortcut key shift so that this problem does not happen

  * Hold DOWN SHIFT RIGHT for 8 seconds to appear popup filter keys

  * Click on SETTINGS

  * On the keyboard tab go to filter keys and click SETTINGS

  * Under click on shortcut key on the box USING the SHORTCUT to remove

  brand

  * Click OK

  * At the bottom of the Accessibility Options box, click APPLY, then OK.

  * Press the two shift KEYS to disable changes.

  Keyboard should now return to normal mode and if you hold down the SHIFT key for 8 seconds or more, you should never have this problem again. »

  http://answers.microsoft.com/en-us/office/forum/office_2003-word/how-to-turn-of-shift-key-from-activating-filterkey/718a88f3-2f75-4b11-9cbf-236f0b80a72f?msgId=22a93d80-9c76-419f-a25d-467ceb87ecc3&tm=1365534268087

• Need help for Oracle ASM

  Hello Experts,

  My name is Rohan and I work as an Oracle DBA now, I fell on the ASM and I want to learn it.

  I have a knowledge base of Oracle ASM and I also configured/created an instance using DBCA.

  Now for the best understanding I want to create the same with the command line.

  Everyone please give me the great tutorial for the same?

  I'm using oracle 11.2.0.3 on windows.

  
  

  Thanks in advance.
  

  CREATE DATA base should be with the ORACLE_SID set to the desired database SID, not the SID of the DSO.  Also, if you have (as in 11 g) two separate ORACLE_HOMEs for the ASM and the database, the DATA CREATE database must be run ORACLE_HOME database.

  Hemant K Collette