ASM disks on external storage

Similar Questions

• 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

• External storage space can be added to stop messages "low disk space"?

  Original title: I'm running vista on laptop attempted to solve by usual means low disk space now got external storage space can I get do this part of the computer comprehensive storage thanks bobster

  I tried to increase my memory on the laptop by buying a box of external mass storage and want to know what can I config portable to take account to stop a low disk space

  Hello

  Unfortunately, it is not possible to add external hard drive on the internal hard drive space. However, you can perform disk cleanup that can help you solve this problem.

  Delete files using disk cleanup

  http://Windows.Microsoft.com/en-us/Windows-Vista/delete-files-using-disk-cleanup

  You can also uninstall the unwanted program to increase the space.

  http://Windows.Microsoft.com/en-us/Windows-Vista/uninstall-or-change-a-program

• What external storage disk is good?

  I want to buy I drive or external storage. I m from the India. Could someone recommend a good brand? I am owner of iPhone OS and iPad Air 2.

  External drives will not work with an iPhone or an iPad. You would need a wireless for external storage drive. There are any number of such around Seagate, Western Digital, etc. They should all be OK to use it.

• ASM will support Extern and up at the same time?

  I'm confused.  If we have a group of redundant San who maintain the ASM disk group and our type is set to Extern, we put our confidence in snapshots, replication, and so on in the hands of the SAN.

  Can you have Extern and high?  You can have ASM diskgroup that lies on the SAN but too high?

  If you can not, then if you raised, and these starts on the SAN, what's the difference?  Are not often required database on a San with a server on the front-end server?

  ASM diskgroup redundancy and redundancy SAN are not the same and work completely different. You cannot use extern ASM and redundancy high at the same time.

  A San doesn't know anything about Oracle database files and redundancy is usually accomplished in RAID. ASM is not RAID and does not duplicate complete records. ASM data redundancy is based on failure of disk groups and file extensions. ASM knows by the way of the Oracle database files and automatically adjusts the deletion of data, which does not have a SAN. ASM has also the advantage of the storage size can be adjusted dynamically when the storage is online, without having to rebuild your storage devices. Rebuild or expand a SAN solution based RAID usually means to reset the storage.

  Beware of the features of snapshot and SAN replication because they cannot provide full backup or redundancy if you lose the full storage.

• Not correct ASM disk size

  Hi all
  
  I'm dealing with an interesting event in ASM. Summary of the problem;
  
  + FRA size 400 GB and free 175GB, the lsdg like this command output space on below;
  
  ASCMD > lsdg
  Name Type State Rebal Unbal sector block to Total_MB Free_MB Usable_file_MB Offline_disks Req_mir_free_MB
  EXTERN MOUNTED N N 512 4096 1048576 409600 175717 0 175717 0 FRA.
  EXTERN MOUNTED N N 512 4096 1048576 2252800 440059 0 440059 0 DATA.
  
  According to 'the' result of command FRA 265 GB size
  ASMCMD > cd + fra
  ASMCMD > of
  Used_MB Mirror_used_MB
  26515 26515
  
  So two value is different. I thit it is because we are questioned same area. Do you know why the two news are different?
  
  Perhalps it may be help response from your answer that, depending on the result to the "' select * v $ flash_recovery_area_usage;" " All the FRA in SQL * more.
  
  SQL > select * from v$ flash_recovery_area_usage;
  
  FILE_TYPE PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES
  ------------ ------------------ ------------------------- ---------------
  CONTROLFILE 0 0 0
  ONLINELOG 0 0 0
  0 8 ARCHIVELOG.92
  BACKUPPIECE 0 0 0
  IMAGECOPY 0 0 0
  FLASHBACKLOG 5.84 0 118
  
  Thank you...

  Hello

  Unbalanced disc can cause the missing disk free space does not allow to make any allocation to a disk group because each file should be evenly distributed across all disks by ASM political stripping.

  Configuration asymmetric discs and some operations on ASM disks can create this type of problem. Frequently, the problem must be resolved after a succesfull rebalance as much as all the drives have the same storage capacity, and there is no underlying hardware problem.
  The most common reasons may be the following:

  1 - the capacity of the disks within the ASM diskgroup are different
  2 - ASM instance is shutdowned normal/immediate before rebalancing is complete.
  3-disc is a FALL / HUNG State
  4. after an order to add disk rebalancing is still in place

  You can also try:

  ALTER DISKGROUP FRA CHECK ALL REPAIR;
  

  PS: Make sure you have these files on FRA was backed up somewhere safe.

  Kind regards
  Levi Pereira

• ASM disk - based SAN LUN expansion

  Hi all
  I'm learning a bit about the ASM and best practices to follow properly set up/use it at its best.
  
  Using an external FC SAN storage, if I create a logical volume with a LUN number and expose this LUN to my server ASM, I can see it properly and add it to an ASM disk group.
  
  So far so good. After that, if I develop this LUN on the external storage (using the tools), I'm not able to see the new space of the DSO. Looks like Oracle somehow "partitioned" originally the LUN when I first added it to the instance of the DSO, and after the "marking" it, even if I increase the Volume, the "expansion" is not seen.
  
  Is there a way to tell ASM as ther IS actually more space available? If I "fdisk-l", I see the amount of space on the device. But the 'blocks' are always the old value...
  
  I know that the creation of another logic unit number and adding to the disk group, there is no problem, but I would rather be able to expand an existing LUN on my external storage to create new LUNS on it all the time... Please help me understand if what I have in mind is correct or not on a best practices perspective.
  
  Thanks for any help.

  Yes you're right. Add the 20 GB lun, you can with 0 downtime and then remove the old 10GB of the diskgroup lun (assuming that you don't change the 10 GB to 20 GB :)) If you hold rebalance low power, Re-balance I/O will be even not worth the performance system IO too muchl.) But the problem here is that hesitate to use only a single lun 20 GB as the entire disk to ASM diskgroup. If you increase the number of LUNs (disks asm) even by creating separate volumes on the same physical disks you will increase the number of logical I/O paths which contributes to the homogeneity of distrubution of I/O.

  Kind regards
  Hüsnü
  http://husnusensoy.WordPress.com

• ASM disks - expand a based San LUN

  Hi all
  I'm learning a bit about the ASM and best practices to follow properly set up/use it at its best.
  
  Using an external FC SAN storage, if I create a logical volume with a LUN number and expose this LUN to my server ASM, I can see it properly and add it to an ASM disk group.
  
  So far so good. After that, if I develop this LUN on the external storage (using the tools), I'm not able to see the new space of the DSO. Looks like Oracle somehow "partitioned" originally the LUN when I first added it to the instance of the DSO, and after the "marking" it, even if I increase the Volume, the "expansion" is not seen.
  
  Is there a way to tell ASM as ther IS actually more space available? If I "fdisk-l", I see the amount of space on the device. But the 'blocks' are always the old value...
  
  I know that the creation of another logic unit number and adding to the disk group, there is no problem, but I would rather be able to expand an existing LUN on my external storage to create new LUNS on it all the time...
  
  Thanks for any help.

  Have you tried:

  SQL > alter diskgroup DATA42 resize all the 4 powers of rebalancing.

• How can I save my apple devices using external storage

  How can I back up all my apple devices using external storage and not iCloud and iTunes

  iDevices are designed only for backup of iCloud or your computer using iTunes. If you make regular backups of your iDevices to your computer using iTunes and back up your computer, then you will have a backup stored on the computer and your backup disk. You can also backup to the cloud for extra protection and convenience.

• Move all backups and iTunes library to external storage

  Hi all

  My MBP internal SSD is full so I want to move all the data from iTunes to external storage.

  I found how to move the library which was pretty easy.

  How can I move my backup files to iPad and iPhone? It seems to be more difficult to achieve.

  Thanks in advance

  JJ

  Not difficult, read here:

  Manage and backup your iTunes media library - Apple Support

  Two things to remember:

  the first time you open iTunes after move your library: hold down the ALT (option) and iTunes point to where you put the library on the external drive. iTunes will remember that.

  When you want to use iTunes to make sure that this disk is attached.

  Lex

• HP Envy 15-j139TX: the BIOS using external storage recovery does not work.

  My HP Envy 15-j139TX got stuck (frozen) and I force closure by long pressing the power button. I tried to start by pressing the power button, it shows a black screen (display off) and the capslock continues to Flash.

  I did research on the problem and discovered that the issue was "the BIOS corruption failure" according to the information on the link below:

  http://support.HP.com/us-en/document/c01732674/

  I tried to recover the BIOS using an external storage device by following the instructions at the link below:

  http://support.HP.com/us-en/document/c02693833

  But it did not work. The lights keep flashing. I have my files b.SC. thesis on the computer and their need for pronto. (If not my life is pretty well made)

  I also couldn't find the files for version 10 of Windows (64-bit) to my laptop, so I tried with one I downloaded from another site and I got a BIOS of Windows 8.1 HP site.

  Is there anyway I can fix it soon or get my files as soon as possible. Help, please!

  Have you ever updated the BIOS before?

  If you have, you should be able to recover the BIOS using the Windows key + key B method.

  All holding the key Windows + B button down, press the power button and wait to see if the laptop responds with a message of recovery of the BIOS on screen.

  As my wife continued his mastery, I insisted on his recording of his files periodically to our home network NAS.

  You can remove the hard drive and connect it to a desktop computer to get the files from it. You can connect the hard drive to a USB to sata cable to connect it to a laptop.   Instructions to access the disk by opening the back door are on page 42 of the maintenance and service guide. The hard drive is part replaceable by the user, so you don't have to worry about voiding the warranty.

  http://h10032.www1.HP.com/CTG/manual/c03943414

  Your notebook is new enough to have the recovery key enter BIOS update available. Use the F.65 version in the Windows 8.1 driver download section. the softpaq is at the following ADDRESS.

  http://ftp.HP.com/pub/SoftPaq/sp69501-70000/sp69886.exe

  You will need at least 256 MB usb key to create a USB rcovery to recover the BIOS with. BIOS update softpaq will offer the opportunity of creating a recovery USB. I used the method on multiple occasions and it worked for me.

• How to value scheduled backup in Server 2008 external storage device as an external HARD drive?

  Original title: Server 2008

  How to value scheduled backup in Server 2008 external storage device as an external HARD disk.

  This issue is beyond the scope of this site and must be placed on Technet or MSDN

  http://social.technet.Microsoft.com/forums/en-us/home

  http://social.msdn.Microsoft.com/forums/en-us/home

• WRT1900AC external storage and Windows 8.1

  I just upgraded this router after that Time Warner gave me a free upgrade to 200 Mbps.

  Everything is faster, make more SOON!

  My new laptop has got 206 Mbps 5.0 GHz Wireless.

  But, the laptop is running Windows 8.1, and I think it is the problem of external storage.

  I plugged a USB3 32 GB USB drive and a hard disk of 1 TB in USB1 and USB2, with the same result.

  On my desk, I see an icon for the Twonky Media Server and a folder of files to external storage.

  On my laptop, I see the Twonkymedia icon, but no folder.

  The laptop can music, videos and photos.  But there is no way to access any files outside media.

  The Office has a "Home" network, but the Windows laptop 8.1 has a "Private" network

  I put the laptop to share and can be transferred back and forth between the two computers.

  I don't see this as a case of breakage, but it would be nice to make it work.

  I have no experience network Windows 8/8.1.  I'm a fanboy of Windows 7.

  Thanks in advance for any help.

  To access media files from any computer on your network. Look in the storage of the router section and use the links provided to access the files.

• All external storage devices such as Flash cards not found in 'computer '.

  After entering the external storage devices such as smart, external hard drives and flash cards, these devices cards indicate connection to the computer and the computer indicates recognition of them all in the 'auto play' windows, which disappear very quickly. I find these devices listed in Device Manager, but their icons do not appear in 'computer '.

  Hello

  Check if the hard drive, Flash card and external gets detected in disk management. If it gets detected in disk management, and then format the disk and assign a drive letter.

  Follow these steps:
  a. Click Start and type diskmgmt.msc (command to open disk management) in the start search box and press ENTER.
  b. If you see the SD card or external hard drive, then right-click on the drive and select Format.
  NOTE: Please check that you back up all data on the disks before get you in shape.

  See this link for more information on how to assign a drive letter to a drive:
  http://Windows.Microsoft.com/en-us/Windows-Vista/change-add-or-remove-a-drive-letter

  Kind regards
  Afzal Taher - Microsoft technical support.
  Visit our Microsoft answers feedback Forum and let us know what you think.

• os vs ASM disk size

  Hello

  When I compare the size of the operating system disks, each is 2.6 to.

  But when I look at ASM, they are 2 TB each.

  I'm reasonably sure, not 100%, I've created with external redundancy, so I thought the asm disks would be the same size as the operating system.

  fdisk -l
  data         /dev/sdb1      2627.4 GB        
  data2     /dev/sdg1        2627.4 GB        
  
  
  Name  REDUNDA MOUNT_S   TOTAL_MB    FREE_MB      OS_MB  
  ------------- ------- ---------- ---------- ---------- -
  DATA  UNKNOWN CACHED     2097144     842200    2097150  
  DATA  UNKNOWN CACHED     2097144     842392    2097150  
  

  Can someone explain this to me?

  Thank you

  Randy

  Version of grid Infrastructure?  ASM has limit GI version< 11.2="" on="" maximum="" size="" of="" luns="" (2tb)="" that="" can="" be="" used="" for="" asm="">

  https://jonathanlewis.WordPress.com/2009/08/14/Tera-bug/