Claiming of free space in data files

I have a problem for claiming the free space in few data files .There is the data in the files at fragmented places i.e. the free space is below the high water mark.DB is production db and Export/Import is not possible due to time consideration. How to get back that space. Please reply soon.....

Dolly, the term HWM in Oracle is normally only used to describe the last used block in a table allocation. There is no way to reclaim unused blocks below the HWM in a table without reorganizing the table though Oracle will resuse the space for new rows if the pct_used threshold allows (or ASSM) allows it do so.
You can sometimes release free (unused) blocks above the HWM of a table using the alter table shrink option.
You can perform a similar function on extendable datafiles between the last allocated object extent and the end of file.
As Justin said, you need to explain your situation better.
-- Mark D Powell --

Similar Messages

Increase free space in data files

Hello All,
We are running netweaver 04s on sql server. In our EPR landscape, we are having message no free space in file in db02 transaction. It reports error when we execute DB02 and does not allows or shows us the DBCC check options. Strangely, this message appears even if the auto grow option in data files is on.
Could you please let me know what would be the impact if I increase the datafiles initial size?
Thanks,
Gaurav

Hello Jeff,
Thanks for the response!
The odd thing out is that, we do have autogrowth on, and I am sure the data file size is getting increased on all the datafiles, otherwise the database would have struck up but the information that we get on DB02 transaction is wrong or the correct information is not bieng reflected.
Also, I am not able to run the DBCC checks via dbacockpit!
Please share your thoughts!
Thanks,
Gaurav

Get Total DB size , Total DB free space , Total Data & Log File Sizes and Total Data & Log File free Sizes from a list of server

how to get SQL server Total DB size , Total DB free space , Total Data & Log File Sizes and Total Data & Log File free Sizes from a list of server

Hi Shivanq,
To get a list of databases, their sizes and the space available in each on the local SQL instance.
dir SQLSERVER:\SQL\localhost\default\databases | Select Name, Size, SpaceAvailable | ft -auto
This article is also helpful for you to get DB and Log File size information:
Checking Database Space With PowerShell
I hope this helps.

To know free space in database files

Hi all,
how to know free space and used space in individual database files by sql quer or command not from oracle enterprise manager.please can any body tell me query.quick response will higly appreciated.thanks a lot in advance.

Hi;
column file_name format a42
column tablespace_name format a15
column status format a3 trunc
column t format 999,999.000 heading "Total MB"
column a format a4 heading "Aext"
column p format 990.00 heading "% Free"
SELECT df.file_name,
df.tablespace_name,
df. status,
(df.bytes/1024000) t,
(fs.s/df.bytes*100) p,
decode (ae.y,1,'YES','NO') a
FROM dba_data_files df,
(SELECT file_id,SUM(bytes) s
FROM dba_free_space
GROUP BY file_id) fs,
(SELECT file#, 1 y
FROM sys.filext$
GROUP BY file#) ae
WHERE df.file_id = fs.file_id
AND ae.file#(+) = df.file_id
ORDER BY df.tablespace_name, df.file_id;
column file_name clear
column tablespace_name clear
column status clear
column t clear
column a clear
column p clear
ttitle off
Sample Output:
FILE_NAME TABLESPACE_NAME STA Total MB % Free Aext
/usr/ORACLE/u02/data/example01.dbf EXAMPLE AVA 153.600 49.13 YES
Edited by: emre baransel on Sep 30, 2009 10:11 AM

Disk Utility - Erase Free Space - Creating Temporary File Freeze

I used "Erase Free Space" with Disk Utility after trashing several files I no longer wanted on the hard drive or recovered. I used "Zero Out Deleted Files" option. It took over 12 hours before an error message appeared "Your start up disk is almost full. You need to make more space available on your start up disk by deleting files." I thought that was what I was doing. Disk Utility continued but got stuck on "Creating Temporary File." I force quit Disk Utility after several more hours. I had to manually shut down the computer because the restart command wouldn't work. It rebooted and appears to be OK. Evidently, this temporary file consumes significant amounts of disk space. This is an older iMac with 10.4.11 (18 GHz PowerPC G5) - I know, pretty old but I still have OS 9 on it and several files I need to extract before I trash it.
1. Should I do nothing? The iMac seems to be working fine.
2. How do I know if this Temporary File exists and consuming space? Spotlight doesn't find it. Where is it?
3. Is my start up disk in fact almost full? How would I know that?
Thanks!

Then I would not do any secure erasing. It's exceptionally time consuming and unnecessary. Before you take it in for recycling boot it from your OS X installer DVD. Do this:
Drive Partition and Format
1. Boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
A one-pass Zero Data option is all that is required to prevent access to your erased files.

D3lphin / konqueror - too much free space between single files

Hi there,
I'm using Kdemod 3.5.9. The problem I experience is, that both d3lphin and konqueror create "gaps" between files. Its hard to explain, so I post a picture.
The picture shows my wallpaper collection - but the problem is not bound to images. It does also occur with dirs, videos, sound-files...
By changing the font and grid-size I was able to change the general free space between files, but the "extra space" between some files remains.
Any Idea?
Greetings, yodo
Last edited by yodo (2008-05-15 19:06:25)

@funkyou At first thanks for your work because after recognizing that you have things as at example kdmtheme included i give kdemod a try and it works nice. Instead of your theme looks very cool i stay as before with qtcurve ... i hope this is not a problem for you. [If you want you can do a +1kdemod/-1kde in your survey ]
funkyou wrote:It works fine for me, but i belive that this has something to do with DPI settings in Xorg...
I have exact the same settings as you with the only exception that Sub-Pixel-Hinting is on but i have the same effect as yodo. I fear that if dpi (or/and fonts) could be a problem in this case than the content of "/etc/fonts/conf.avail" could be important too. But i don't realy think that this is the problem because the icons on the desktop don't have this problem.
My workaround is stepping to the Tree View (i hope this is the correct translation of "Mehrspaltige Ansicht") and i forgot it because i like this more and more.
@yodo Very nice wallpapers and thanks for animating me to search InterfaceLIFT.

Removing free space in DMG file

I have a 7GB .dmg file that I'm trying to burn to a DL DVD. When mounted (and in Disk Utility), the file shows as having 1.2GB of free space. If I try to burn it in Toast 10 or Disk Utility, I get an error saying that my blank DL DVD can't fit the 8.2GB file, even though it only contains 7GB of actual files. How can I "delete" the free space in this .dmg file so that it will fit on a dual-layer DVD?

Peter Petracca wrote:
I have a 7GB .dmg file that I'm trying to burn to a DL DVD. When mounted (and in Disk Utility), the file shows as having 1.2GB of free space. If I try to burn it in Toast 10 or Disk Utility, I get an error saying that my blank DL DVD can't fit the 8.2GB file, even though it only contains 7GB of actual files. How can I "delete" the free space in this .dmg file so that it will fit on a dual-layer DVD?
What's interesting is that a blank DL DVD has a capacity of 8.5 GB.

Need program to safely scrub free space and deleted files and parts of file

In PC world they have CCleaner and R-Wipe & Clean and a half-dozen other well-regarded programs that clean up the junk off your drive, sanitizing it while not touching the data still in use. Are there such programs with good reputations in the Mac world? What be they?

Thanks, I have used that. I'm not so sure it is as thorough as the programs I mentioned for the PC, which take out fragments of sectors, various histories, cookies, bits of remaindered programs, etc. And they are much quicker, seems to me, than the Erase Free Space in Disk Utilities to boot (even the straight write zeros is slow in DU).
So I was looking for some free or commercial products that offered a range of methods and good speed, as well as a broad range of "intelligent" pruning.

Disk Utility - Erase Free Space - Creating Temporary File Freezes

BDAqua: I tried responding to your reply to my original posting but I get an error message that I was not authorized to reply. I logged out. I can't find the original posting in my Activity so I approached from the link in my e-mail saying you had replied. Now it says the area is restricted. What's up with that?
Rod
Here's the original post:
I used "Erase Free Space" with Disk Utility after trashing several files I no longer wanted on the hard drive or recovered. I used "Zero Out Deleted Files" option. It took over 12 hours before an error message appeared "Your start up disk is almost full. You need to make more space available on your start up disk by deleting files." I thought that was what I was doing. Disk Utility continued but got stuck on "Creating Temporary File." I force quit Disk Utility after several more hours. I had to manually shut down the computer because the restart command wouldn't work. It rebooted and appears to be OK. Evidently, this temporary file consumes significant amounts of disk space. This is an older iMac with 10.4.11 (18 GHz PowerPC G5) - I know, pretty old but I still have OS 9 on it and several files I need to extract before I trash it.
1. Should I do nothing? The iMac seems to be working fine.
2. How do I know if this Temporary File exists and consuming space? Spotlight doesn't find it. Where is it?
3. Is my start up disk in fact almost full? How would I know that?

Here's what I tried to say in my response that I wasn't authorize to make:
I can't seem to reply to your response BD . . . says I'm not authorize . . . so I'll try to reply to my original post.
Thanks BD for your reply. Here's the info on the drive: 1.3 TB capacity with 1,017 GB available. Eventually I will recycle the computer at Best Buy who guarantees the hard drive will be erased. I just want to get all my files off first. I'll just do another Erase Free Space and see, as you suggest, if there are any files to be zeroed out. Maybe there aren't any. I've extracted most of what I want but am debating how to move the entire iPhoto library to an external drive so I can access it from my Mavericks machine. Can I just drag and drop the iPhoto Library, or do I need to export it somehow?

After 10.9.4 upgrade, can't recover free space after deleting files

After upgrading to 10.9.4, I decided to backup about 250 Go of films on an external drive, and then I deleted the originals ones on my MacBook Pro. The files disappear, but the free space stayed the same: more than 250 Go of free space couldn't be recovered !!
I generally use the program "Cocktail" to maintain the mac; but in that case, no solution.
I decided to look for the films on the disk, on temp folders and with Spotlight. And I found them ! In the folder: Volumes/HardiskName/.cleverfiles/hlink.ref/
I deleted them directly in the trash and ... I recovered my 250 Go of free space.

That folder is created by the third-party application "Disk Drill." If you don't like what it does, remove it according to the developer's instructions. "Cocktail" is worthless and should be removed in any case.

Why can't the Utility function's 'Erase free space' create temporary file

I've been using erase free space without problem for some time.. Then today when I tried to use it, got an error message to say that erase free space won't work because it can't create a temporary file. I have a 320 GB MBP with 88 GB of free space.
I'd love you forever if you can help me get round this issue

Here's what I tried to say in my response that I wasn't authorize to make:
I can't seem to reply to your response BD . . . says I'm not authorize . . . so I'll try to reply to my original post.
Thanks BD for your reply. Here's the info on the drive: 1.3 TB capacity with 1,017 GB available. Eventually I will recycle the computer at Best Buy who guarantees the hard drive will be erased. I just want to get all my files off first. I'll just do another Erase Free Space and see, as you suggest, if there are any files to be zeroed out. Maybe there aren't any. I've extracted most of what I want but am debating how to move the entire iPhoto library to an external drive so I can access it from my Mavericks machine. Can I just drag and drop the iPhoto Library, or do I need to export it somehow?

Unable to claim 100G Free Space Partition after Deleting Yosemite Beta

When I was running Mavericks I had a single large 500G volume (no partitions). The I installed Yosemite Beta on a 100G partition. After Yosemite was released it reinstalled over the Mavericks on Partition 1. When I tried to delete Yosemite Beta partition to reclaim the space to evert to original form - I have been stuck with a 100G Free Space partition that I can do nothing with - neither make it into a usable volume to store data nor be able to merge it into the original partition. I am hitting up against the space restrictions dn desperate now - I have see Loner T do an awesome job with his advice on this forum for similar issues. Very grateful for help. I also purchase iPartition but it was a waste as it says that it does not have write access to the disk.

Here are my
Diskutil list
Dads-Mac:~ sunkap$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS                         399.4 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Mac                    *399.4 GB   disk1
                                 Logical Volume on disk0s2
                                 D30FABC9-09A2-47B8-B008-7AE0CBB42164
                                 Unencrypted
Dads-Mac:~ sunkap$

Disk not showing free space after deleting files?

Hi there. I'm running Mountain Lion 10.8.2. I deleted about 20GB worth of data from my hard drive but when I go into activity monitor and click on disk usage it doesn't show an extra 20GB of space. I did this 2 days ago. Is there something wrong with my hard drive? There is nothing in the trash and I have restarted my laptop twice now. Also, I use Daisy Disk to show my usage and it says the same thing as activity monitor. Thanks in advance!

“You may notice a difference in available space statistics between Disk Utility, Finder, and Get Info inspectors. This is expected and can be safely ignored. The Finder displays the available space on the disk without accounting for the local snapshots, because local snapshots will surrender their disk space if needed."
About Time Machine's "local snapshots" on portable Macs

Deleting Files in MacBookPro - Yosemite sending "FREE SPACE" to "Other"

I have the weirdest problem.
I'm running a Macbook Pro Late 2013 with OS X Yosemite 10.10.1.
The MAC came with a 500GB SSD Drive.
I have about 60GB of free space on my Mac. I need to restore a large file that is about 60GB.
So I thought to myself, "I'll just delete files I don't need".
I went ahead and deleted a parallels VM that was about 60GB in size. But I was shocked when I checked "About this Mac": no free space had been added!
I went ahead and did all the usual stuff. Empty trash, restart the MAC, repair permissions using "Disk Utility", restart the mac again, - but no matter what I did, I could not get the 60GB of free space from the file I had just deleted.
I downloaded OmniDisk Sweeper and Disk Doctor, but none of these applications where able to either get my 60GB back, or at least point me to where the 60GB has gone.
So I decided to disable my time machine. This usually gets rid of the backup cache. "About this Mac" showed that I would get about 50GB free space by doing this. After doing this, I was shocked to see that my free space had only changed negligibly - from 60GB to 64GB. Deleting 50GB of backups only added 4GB to my free space.
However during all of this, I noticed my "Other" data in "About this Mac" had grown considerably from about 90GB to about 206GB. It seems to me that all that space I have free'd up has somehow gone into the "Other" category instead of going to the "Free Space" category.
Please note my trash can is completely empty, and I have repaired permissions using Disk Utility at least twice with no effect.
I need to get my free space back so I can restore my virtual machine and get back to work.
Please help!!!

How much space does it say is available when you click on the HDD icon on your desktop COMMAND + I?
Hoe does this compare with OmniDiskSweeper?
You might have to reindex Spotlight if you are seeing inconsistent amounts.
Ciao.

Data file recovery from Windows 7

A Macbook that was running OS X with data files and pictures was taken by someone without their permission.
That person then wiped the hard drive and installed Windows 7.
The Laptop has since been returned to the original owner and to her dismay realizes all her files have been deleted.
Is there any chance of recovering any of her previous OS X data files and pictures before she reinstalls OS X.

Kappy and Limnos are both correct, depending on what was done to the hard drive.
It's most likely that the person who put Windows 7 on the Mac did a quick erase, which would leave all but the first few cylinders of data on the drive untouched.
After changing the partition scheme to NTFS and and installing Win 7, then the data that will be difficult to impossible to recover will be those areas that were written over with the Windows OS files, the swap file it creates, and any other areas of the drive that were written over during that person's use of the Mac.
The first thing you will need to do before you can use either FileSalvage or Data Rescue 3, is boot to the disks the Mac came with, run Disk Utility from the DVD and change the partition back to Mac OS Extended. Neither of these recovery programs will read anything but a Mac drive. As in changing the drive to NTFS, you would only be overwriting the first few cylinders of the drive to do this. Just make sure not to install OS X. Only use the DVD to get the drive back to Mac OS Extended.
Since the drive will have no bootable system on it at this point, you will need to purchase one recovery program or the other on a bootable CD/DVD. The only other option is a bootable external drive so you can try the demo versions before purchasing. The external drive will also need to have enough free space to recover files to.
Now run either recovery program. As mentioned a few times now, getting any data back that was sitting on the areas overwritten with Win 7 are slim to none. But any data on the drive that was never written to during that time can be. What you recover all depends on what was sitting where.

Claiming of free space in data files

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