HWM, shrink space and datafile resize

Similar Questions

• What is the USED different to DEALLOCATE - datafile resize operation?

  Hello world
  
  I have a question for DESALLOUER UNUSED.
  
  What are the different command DEALLOCATE UNUSED and datafile resize operation?
  
  Thank you.

  Free unused space clause is used to explicitly deallocate unused space to 'end' of a segment and makes this available space for other segments within the storage space. Internally, Oracle releases beginning of unused space since the end of the (space) objects and moving downwards, towards the beginning of the object, continue down until it reaches the high water mark (HWM).

  DataFile resize add / subtracted bytes of physical operating system of the data file.

  Soon :)
  Renjith Malet

• DEALLOCATE UNUSED and SHRINK SPACE

  Hello
  What is the difference between the effect of DEALLOCATE UNUSED and SHRINK the SPACE?

  ALTER TABLE mytable DEALLOCATE UNUSED;
  ALTER TABLE mytable SHRINK SPACE;

  ahmedbaraka wrote:
  Hello
  What is the difference between the effect of DEALLOCATE UNUSED and SHRINK the SPACE?

  ALTER TABLE mytable DEALLOCATE UNUSED;
  ALTER TABLE mytable SHRINK SPACE;
  

  The SQL reference for 10.2 manual...

  deallocate_unused_clause

  Use the deallocate_unused_clause to explicitly release the unused space at the end of the table, partition or subpartition, segment overflow data, segment of LOB data and LOB index and make space available for other segments in the tablespace.

  shrink_clause

  The retraction clause allows manually shrink the space in a table, table arranged according to index or its overflow segment, index, partition, subpartition, LOB segment, materialized view, or newspaper materialized view. This clause is valid only for the segments in the tablespaces with automatic segment management. By default, Oracle database compact segment, adjusts the HWM and frees the space recovered immediately.

  Compaction of the segment requires the movement of the line. Therefore, you must enable the movement of line for the object you want to cut before you specify this clause. In addition, if your application contains the rowid-based triggers, you must disable them before issuing this clause.

  Or condense the above:

  DEALLOCATE - simply releases unused space at the end of the segment; don't move not any data

  Shrink - shrink space in a segment - requires line movement.

• Hi all, I need to understand why my VMs will always grow so big they eventually run out of disk space, and then I can't resize them...

  Hi all, I need to understand why my VMs will always grow so large they finally running out of disk space, and then I can't resize them... see the screenshots below:

  

  So all my virtual machines are that looks like it's finally the 5 GB goes down to zero, cannot update things like Dropbox and all sorts of other things start to break. I then, go here and try to expand, but I get this error on machines to young readers:

  

  I think I need at least as much GBs on the system, as is the virtual machine? Done my MBA and smaller machines, is not possible. But when I move the virtual machine to a bigger machine like my iMac, with a big disc of TB, I can do the resizing. Is it the way it is supposed to work? Perhaps, I do not have this right...

  thx for all the advice!

  Yep, that's the way it is supposed to work.  The close, move it to the iMac, expand drive, then arrest him and bring him back.  Make sure you choose "move" not "copy" when migrating to avoid triggering the activation of windows.

  Regarding what is eating space inside the virtual machine, you will have to consider for the guest OS for more information (which are not a matter of merger).

  To free up space on the host, with closing VM, go to settings, click on the circle of little tiny refreshment next to the space bar, then if she said cleaning recommended, go into general and make a clean virtual machine.

• "Querying volume for available shrink space" does not

  I tried to create an empty partition on my 500 GB drive C (which I still have more than 350 GB free) to be able to dual boot another OS next to my already installed Windows 7 Ultimate 64-bit, but I encountered a problem from the beginning. While trying to shrink the space on drive C for the partition, the computer management hangs on 'Volume mark for available shrink space' for about a minute, and then said computer management "not responding". I have retried several times, and I still have the same result. I tried running "sfc/scannow" as administrator CMD, but there is no problems found. Afterwards, I checked errors on drive C, but the result is always the same. I don't know how to go further with this problem. Any help would be greatly appreciated...

  Here are a few options:

  • Use a third-party disk manager, or a commercial (e.g. Acronis DiskDirector) or one that is free.
  • Use diskpart.exe in a command prompt if you are comfortable to work at this level. It might give you a more explicit feedback. Here is what you would see:

  d:\>Diskpart
  Microsoft Corporation.
  On computer: ACORN

  DISKPART > select disk 0
  Disk 0 is now the selected disk.

  DISKPART > detail disk
  Crucial_CT512MX100SSD1 ATA Device
  . . .
  Volume # Ltr Label Fs Type size status Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
  Healthy Volume 1 c System NTFS Partition 68 GB system
  Sound data 2 D NTFS Partition 97 GB Pagefile volume
  Volume 3 e drivers NTFS Partition 310 GB healthy

  DISKPART > select partition 3
  Partition 3 is now the selected partition.

  DISKPART > retractable help

  (read the help text)

  DISKPART > shrink Desired = Minimum 150 = 100

  DISKPART > exit

• Stuck computer management on the volume of queries for available shrink space, please wait.

  I'm trying to reduce my Windows 7 partition but the computer management tool is stuck on "volume volume queries for available shrink space, please wait". I used to have a Linux installation on it earlier and I uninstalled it properly, but Windows still work, so that could be the problem. Anyone have any ideas?

  I don't know if l could help but try the system, sfc file Checker

  http://www.SevenForums.com/tutorials/1538-SFC-SCANNOW-Command-System-File-Checker.html

  And after doing so clean the PC boot to see if you can access disk management

• DataFile resize on primary

  Hello
  Assume the management of the undo file is manual
  If I Spear 'alter database datafile resize"command, the command is also resizes the data file on the standby database?

  On the one hand, Oracle must support AUTOEXTEND ON else failing to many sites of Eve! So, by extension, even a RESIZING is supported.

  Adding a data file requires the addition of an entry to the list of data files in the controlfile. The controlfile is a catalog of the physical structure of the database, and a new data file changes the physical structure. In earlier versions (without STANDBY_FILE_MANAGEMENT), it could not be supported. RESIZE has always been possible, because it is a SQL statement that spreads through it again.

  Hemant K Collette

• alter table shrink space! ~ help!

  Hi guys,.
  
  (1) I have send a space of shrinking orders and it takes ages to complete.
  
  (2) generated Tons of redo and undo and I'm near my hard drive space max.
  
  T1) if I had to kill today's session.
  There will be a lot of back to?
  
  is not alter table a DDL statement, so the movement of the line be committed regularly or only after the entire statement over?
  
  which means that the decline in price if I kill the session will have to restore all the way at the time that I publish a retraction statement?
  
  Kind regards
  Noob

  grateful if you could offer some advice.

  My advice is to TEST DDL on dev. DB before launching the Production System; so that you know what to expect coming.

• ALTER table move & shrink space

  Hello
  What is the difference between alter table move and alter table shrink space orders
  Two free blocks not used in the table so that the free space will be given to the tablespace. Can you explain mw in detail or provide some links

  Sekar_BLUE4EVER wrote:
  Hello
  What is the difference between alter table move and alter table shrink space orders
  Two free blocks not used in the table so that the free space will be given to the tablespace. Can you explain mw in detail or provide some links

  ALTER table move would make invalid indexes and would require so rebuild you the index. In addition to him, it requires extra space in the tablespace, even that would be used for the creation of the object in double. So if you have a table of 10 GB, you need additional 10 GB free todo table alter move. Whereas in the narrowing is a place, the online operation, does not make you go and rebuild the index because it doesn't make them not disabled, requires no additional space to have.

  HTH
  Aman...

• Who ask us to Mozilla to bring SPACE and SEPARATOR buttons?

  Having to use Classic theme restaurateur is a drawback that brings other unwanted changes. We are only talking about the addition of a space and separator button. I understand the desire to refresh the appearance of Firefox, but some options of customization should be left alone. It is more difficult to be a loyal user when you constantly have to implement workarounds. Thank you.

  Note that flexible space and separators are still supported in current versions of Firefox.
  They are not present in the palette to customize and you install or activate an extension like CTR for the present in the palette to customize.
  Once you have trained in a toolbar, you can disable the CTR then you should still see these items in the toolbar (but is no longer in the palette to customize) after you restart Firefox.

• Options, advanced, "there's no ' disk space and network"?

  I searched "how to compact the received messages on mozilla" the answer say ' options, advanced, and then click on 'network and disk space' it is NONE 'disk space and network"not anywhere on advanced settings, 'general' to all that. This is not the first time an answer to my question produces the same results, not on my computer.

  Are you running the latest thunderbird? Are these messages imap or pop?

• I want my pictures to download on my iCloud but I don't want all my previous photos on my phone because there are just a lot of space and I have run out of space. Can I disable sharing photos, but let it download photo stream to make it happen, or how I c

  I want my pictures to download on my iCloud but I don't want all my previous photos on my phone because there are just a lot of space and I have run out of space. Can I disable the download of photo sharing but allow for photo streams to make this or how can I make this happen? I just want to still my photos go to my Mac and iCloud so I can have my photos without danger...

  Thank you

  N °

  iCloud is a synchronization service, NOT off of storage of the unit.

  You could cut the phone out of sync from your library. Just move them to your Mac and synchronize your Mac with iCloud. Now, you'll have plenty of space on your phone, but no pictures.

  From your Mac, you can then make an album with photos that you want to access from your phone. This will require ongoing work, but will keep your clear phone in most of the time.

• Desktop spaces and hotspots still missing

  Model name: iMac identifier model iMAC c16.2: retina 4 k lTE 21.5 2015, 3.1 GHz, intel core i5, 8 GB, 2 TB HD, El Capitan 10.11.2 fusion Mem.  Office spaces and hot spots remaining after that computer sat for about 30 minutes.  A reboot will bring these functions, but then they stop after a short period. I tried the disk utility, Warrior of disc that works sometimes.

  Please describe more precisely what is happening - I do not understand what you mean by "Office space" (Mission control do you mean?) and the 'hot spots' (active corners?). What does not work exactly? Can post you some screenshots?

• I reached the 2 gig limit. If I delete other securities is he free space and allow me to continue saving?

  Hi, I've reached my limit of 2 gig. If I delete other titles, that will free up space and allow me to continue to record? Thanks for any help you can offer.

  When you get 2 GB limit WARNING?

  GarageBand is to store the audio recorded for your tracks of real instruments as AIFF files, and there is a size limit of 2 GB for AIFF file. You could try to cut your registration takes several, so each audio region is smaller.

  The problem is, you can't bounce a song like AIFF, if the audio file must be greater than 2 GB.

• Time Machine don't prune the old El Capitan backups and works out of space and "backup fails.

  With the help of El Capitan 10.11.1, I noticed a change in behavior with the handling of the time Machine of large files, specifically the files of virtual disk VMWare Fusion (about 50 large concerts).  After a few weeks of use of fusion VM virtual machine, Time Machine gives an error where it ran out of space and "backup failed."

  I had the same problem occur on a second iMac that I own.

  I reformatted my external drive for Time Machine and started fresh, but after a few weeks, I got the same error again.  It seems that Time Machine is not the size or remove older backups of VMware virtual disk to provide a space for the new.

  Previous versions of Mac OS X and Time Machine had no problem with the backup of large files such as these.

  Has anyone else noticed "backup failed" message with Time Machine on El Capitan?  I know that I can exclude the disk virtual VMware backup, but that defeats the entire purpose of Time Machine backups.  Any suggestions?

  Time Machine automatically deletes older snapshots to make room for the new. If your backup history is shorter than expected, it may be because you want to save one or more large files frequently.

  Software virtualization VMware, Parallels or VirtualBox creates a large virtual disk container that is constantly evolving. It will not be saved at all while the virtual machine running, and at other times it must be saved each Time Machine performance. Who fills up quickly any backup destination.

  You must exclude files from virtual drive of your Time Machine backups. To do this, click the Options button in the Time Machine preferences window. You can also do this to virtualization, application settings. Back up the files on the virtual disk within the comments system, using a native backup application.

  A compromise solution is to create a 'snapshot' of the virtual machine in the virtualization software (not a Time Machine snapshot.) This will give you a single large file that never changes and only has to be saved once. All future changes will be stored in a file that is much smaller initially, but will grow over time. You must always exclude this backup TM file. If you need to restore the computer virtual of Time Machine, you will have a working configuration, which will be easy for you to restore the rest of the data in the system of comments.

  See also this page of Parallels support.