Remaining free space in my schema

Hi
I am new to Oracle hence this question..
What is the command that would help me know how much percent of space allocated to my schema has been used and also how to find remaining amount of space in bits or bytes or whatever from SQL or any where... I am not a database admin (fyi)
Appreciate ur help in this reg
Thanx
Kris

Hi
You can run
SELECT * FROM USER_TS_QUOTAS;
TABLESPACE_NAME BYTES MAX_BYTES BLOCKS MAX_BLOCKS
USERS 204800 -1 25 -1
In this case is -1 = nolimit, I can fillup the tablespace

Similar Messages

How to find remaining free space in your schema

Hi
I am new to Oracle hence this question..
What is the command that would help me know how much percent of space allocated to my schema has been used and also how to find remaining amount of space in bits or bytes or whatever from SQL or any where... I am not a database admin (fyi)
Appreciate ur help in this reg
Thanx
Kris

Kris, free space is not assigned to a schema in Oracle per say, but it you mean "how can I see how much of their quota a user has used?" then the following should help.
You can find quotas in dba_ts_quotas (also user version)
You can find how much space has been used in dba_extents (also user_extents)
You should be able to write a query that compared the sum of the used space for a tablespace to the quota for the tablespace. Try the following query (notice how DBA's are treated)
select q.username, q.tablespace_name,
q.bytes as Quota, e.spcused as Used,
round(q.bytes/e.spcused * 100,2) as Percentage
from dba_ts_quotas q,
(select tablespace_name, owner, sum(bytes) as spcused
from dba_extents
group by tablespace_name, owner
) e
where q.tablespace_name = e.tablespace_name
and q.username = e.owner
If you are actually interested in how much free space is left in a tablespace you can look at dba_free_space (user_free_space), but the value returned is not adjusted for the quota limitation. You need the query above for that.
HTH -- Mark D Powell --

How can I add new content in iDVD to a DVD-RW disc which has ample remaining free space? After preparing the new video for burning and clicking on Burn to iDVD, I get a window saying the disc's already recorded and that I can either Erase or Eject.

How can I add new content in iDVD to a DVD-RW disc with a video previously successfully recorded on it? (The disc has ample remaining free space.)
After preparing the new video for burning and clicking in the File menu on Burn to iDVD, I get a window saying the disc's already recorded and that I can either Erase or Eject. My assumption has been that iDVD would automatically find the free space and continue with the new recording from there. I'd be grateful if anyone can shine light on this.

There are, but not with a DVD written as a movie disk. It must be closed when completed, or it doesn't work.
Apple's built in Burn utility also automatically closes any data CD, DVD or Blu-ray disk you burn. Doesn't matter how much space is unused, you can't use it. You'd have to use a more advanced disk creation app, such as Toast Titanium. I then have the option of choosing to write the data as a session:
I can keep doing this until the disk is full. If I've written five sessions to the disk, when I put it in the drive, five CD/DVD icons will appear on the desktop since the OS will treat each session as if they are separate physical disks. At any point you choose Write Disk when writing a group of data, that means you're closing the disk, and again can't add anything after that. So if I had written two sessions, and the third was Write Disk, it's over. I can't put anything else on that disk.

Safety Margin - Remaining Free Space - Storage Drives

Hello my friends - haven't been here for a while - hope all is well.
As a good rule of thumb regarding 'Operating System Drives', and probably 'Storage Drives' as well, it's my understanding one should leave approx. 10% of the total capacity of the drive FREE. My concern mainly focuses on external storage drives for Video, and other Media.You guys have any comments or latest news about this?
Thank You
Mike
Trailer;
http://vimeo.com/7340608

I'd review it in terms of file modification. If I were using these for "data" but was frequently modifying the files then I'd leave more room, kind of like your OS is constantly modifying files and that's why you need to give it lots of space. In my case I almost never modify files once they are on the archive drives and I perhaps take it to an extreme - 320MB free on a 160GB drive which is 0.2%. I do have a second "data" drive in my computer that is used only for media, but since I often modify those files I leave at least 4 GB free. Still, most of those files are 2-5MB MP3s so I am less worried about fragmentation of the files themselves (vs. free-space fragmentation) than if they were 1GB videos. While I'm at it, I do have the OS on its own 70GB partition with 55GB free. I keep all my data files (and even some applications) on a separate partition so the OS can really do what it wants with the OS partition.
I do verify the drives when I do plug them in once or twice a year. Some may say, "Too little space! Too little space !" but honestly in 10 years of doing this I have never had an issue with the drives apart from one bad sector (which probably would have happened anyway). All these archive drives have duplicates (except, of course, where I have an original commercially pressed CD) so if something does happen...
Oh! Oh! One of my pet peeves - "percentage free". I'd be happy if somebody can explain a rationale for this in this era of greatly varying drive sizes. If an OS requires 18 GB for operating space then 18 GB on an 80 GB drive is going to be a very different percentage than 18 GB (or even 20GB if you allow extra for drive overhead) on a 1000 GB drive. I figure Tiger seems to level off at 6GB VM on my computer so I'll give it 18GB to do its thing (and as I said above I really gave it its own big partition). When I moved it to a bigger drive it didn't seem to change its requirements; ergo its % free demand dropped.
Welcome back, BTW.

How do I erase the free space on macbook pro retina?

I went to erase the free space on my MacBook Pro Retina in the Disk Utility but it says not available for this type of drive. Is there a way I can get around this?

You can't use Disk Utility to securely erase a Solid State Disk drive, because of the fact that SSD's have limited write capability, unlike hard drives, thus have to protect the sectors from as little writes as possible.
In fact TRIM (wear leveling) is enabled to write new data to the least used sectors on a SSD each time.
The NSA guidelines for secure data destruction on SSD's is to grind them into a fine powder.
If you don't require this level of data destruction, you can do this trick below, but not often or you'll premaurely wear out your SSD.
Finder > Duplicate a small file repeatly in a folder until slightly more than 50% of the remaining free space on the SSD is used up, (use Activity Monitor) then delete this folder.
Then duplicate a different small file repeatly in another folder in the same manner.
What this will do is, because of the small file, OS X will fill the smallest unused spots on the SSD, the duplicates will fill the remaining free space half way, then the second folder will (because of TRIM) fill the other remaining 50% of the free space.
You can't fill your boot drive or the machine can refuse to function or boot, but because of the wear leveling this should overwrite all your available free space on the SSD once.
If you have a laptop and TimeMachine, there is a hidden database on the boot drive which will store a copy of the deleted data.
Then there is "versions" and it's possible a copy of the deleted data is stored in that cache file still on the SSD.
I can advise how to delete the TimeMachine backup file on the boot drive, but not the "versions" database or what it contains.
How do I securely delete data from the machine?
If your really paranoid it's likely best to reformat the entire MacintoshHD partition from recovery and then with a new user, then do the Finder > Duplicate procedure to overwrite the deleted data off the SSD, this way the "versions" and TimeMachine databases are also overwritten.
Nothing is safe anymore.

Does Secure Empty Trash Accomplish the same task as Running disk util to wipe free space

Does using the secure empty trash option accomplish the same task as running disk util to eliminate free space from old deleted files? I'm currently running the 7 pass deal on my late '12 iMac. Says its gonna take 7 hrs. Can I use safari or iTunes while the Big Mac works its magic?

Does using the secure empty trash option accomplish the same task as
running disk util to eliminate free space from old deleted files?
No.
Finder > Empty Trash just tells the file system that those areas on the drive are now available for overwriting with new data. Data deleted off hard drives can be recovered if this method is used before it's overwritten with new data with special software.
Finder > Secure Empty Trash runs a 7x pass military approved overwrite only on the deleted files in the Trash, works for hard drives only.
Disk Utility > Erase Free Space creates a huge file that takes the remaining free space on the volume selected and either writes zeros or 7x pass, then confirms it and then removes the file. Takes a long time to complete, do not interrupt.
This can be used if one forgets to use Secure Empty Trash or wants to scrub caches or other files that don't necessarily go to the Trash for user deletion, such as program files that self delete and download cache files etc.
Only works for hard drives and there is no recovery possible for nearly all users. Those with special expensive magnetic equipment can possibly recover data off a zero pass, but not off a 7x overwrite.
The zero erase free space can be also be used to pre-eliminate potential unknown bad sectors on hard drives before wanted data is written to them, thus preventing future issues with data retention on hard drives.
Disk Utility > Erase - (not moving the slider) will erase all data on the volume or partition selected, including wanted data. It just tells the file system the deleted data is ready for overwriting. Thus can be recovered using special software before it's overwritten on hard drives only.
Disk Utility > Erase w/Security Option - (or moving the slider from the left) will secure erase all data on the volume or partition selected, including wanted data.
It can vary on the operating system version used from zero pass, to 3x overwrite, to 7x overwrite to 35x overwrite (old version for days past of smaller drives, don't use on newer larger drives as it will take weeks to finish.)
Secure erase methods are used to secure erase private data off of hard drives only, doesn't work for SSDs.
For secure data deletion off a SSD or any flash media, it's NSA advised to grind it into a fine powder.
How do I securely delete data from the machine?

"Erase Free Space"- DU Not Responding?!

     Started "Erase Free Space" in disk utility about 36 hours ago. I had nearly 1TB of free space which I knew was more than the usual amount someone has when they perform this task but I was attempting to speed up game playing as after a year or so, excess of deleted saved games and game data has gradually slowed game performance down some. I read that this might help so I ran it...
     It took 24 hours to do the initial run through up until the "creating temporary secondary file" notification. It looked as though it was about to complete and I received the usual error message that apple says to ignore about no remaining free space or something to that effect. However, out of nowhere the spin wheel started, the Disk Utility window went grey and everything seemed to have frozen.
     After reading several peoples experiences with things like this I was confident that it would resolve in a few minutes, maybe half an hour even and then most likely resolve itself. It was late so I went to bed and when I got up it was still in the same place as I left it...greyed out and spin wheeled.
     So then I went to the Activity Monitor to check the Disk Usage as I knew that I could view the progress through that. As far as I'm aware, after creating the temporary file, as it already did, it is supposed to start looking like free space is "disappearing" as it puts the recently overwritten free space into its newly created temp file and then eventually deletes the file.
     Problem is, the Activity Monitor shows the Disk Utility as "Not Responding" along with Safari and Mail having the same message, yet at the same time I see the free space on my HD SLOWLY (20-100kb/s) doing that "dissapearing" act. So is the Disk Utility doing its job? Is it hung up some how? If it is working then why is it moving at such an incredibly slow rate? Should I be concerned or take some sort of action or just wait while this resolves itself in who knows how long from now?
Advice on this would be very much appreciated as I am not a very experienced Mac user.

apple customer 1 billion wrote:
There aren't that many files to lose in the long run. It's more a matter of avoiding the risk out of convinience for not losing the few that I have. So correct, I have no back up since there isn't much to back up, hence the nearly 1TB of overwritting free space in the first place. Unfortunately, I realized just how long this process takes after I began it, and now it seems to late...
If I did restart, what would likely happen?
Possibilities I've come across:
1.won't be able to log in because theres no more free space
2.I'd have to search for the temp file and manually delete it (provided I had some extra space to do it)
3.might lose all data and have to reinstall everything
Could be any or all 3
Is there a safe way to either:
1.Restart with little to no complications listed above
2.Safely end this task without some sort of unfixable complication occuring
3.Boost its processing so that I can resonably wait it out
There may not be, but I might as well check around before I go straight to Restart is what I was thinking.
No, no and no unfortunately, patience or a leap of faith are the choices

Unable to sync iPad to iMac. Get message 'iPad can't be synced because not enough free space to hold items in iTunes Library'. Only major content is iTunes U stuff. Deleted this on iPad and unticked iTunes U from syncing on iMac but message remains

Unable to sync iPad to iMac. Get message 'iPad can't be synced because not enough free space to hold items in iTunes Library'. Only major content is iTunes U stuff (lots of videos). Don't download any music or other videos to iPad.
Deleted iTunesU content on iPad and unticked iTunes U from syncing on iMac but message remains.
Very frustrating.

No longer a problem. After leaving a while and trying again the iPad and iMac successfully synced.

Query to find out pertcular schema related datafiles free space????

hai,
whats the query to find out free space in datafiles and index files related free space for perticular schmea?
Regards
dba

If you wish to get free space in index tablespace then use following query:
select b.tablespace_name, tbs_size SizeMb, a.free_space FreeMb
from
(select tablespace_name, round(sum(bytes)/1024/1024 ,2) as free_space
from dba_free_space group by tablespace_name) a,
(select tablespace_name, sum(bytes)/1024/1024 as tbs_size
from dba_data_files group by tablespace_name
UNION
select tablespace_name, sum(bytes)/1024/1024 tbs_size
from dba_temp_files
group by tablespace_name ) b
where a.tablespace_name(+)=b.tablespace_name
and a.tablespace_name='INDX';
and if you get info for all tablespace then :
select b.tablespace_name, tbs_size SizeMb, a.free_space FreeMb
from
(select tablespace_name, round(sum(bytes)/1024/1024 ,2) as free_space
from dba_free_space group by tablespace_name) a,
(select tablespace_name, sum(bytes)/1024/1024 as tbs_size
from dba_data_files group by tablespace_name
UNION
select tablespace_name, sum(bytes)/1024/1024 tbs_size
from dba_temp_files
group by tablespace_name ) b
where a.tablespace_name(+)=b.tablespace_name;

How to find free space in datafiles of perticular schema?

hai,
whats the query to find out free space in datafiles and index files related free space for perticular schmea?
Regards
dba

There are lots of scripts available on Metalink which report free space in tablespaces/datafiles.
Note: 1019999.6 - Script: To List Tablespace, Datafiles and Free Space
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=1019999.6
Note: 145531.1 - How to Determine Which Tablespaces Do Not Have Enough Free Space
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=145531.1

I'm down to 11GB free space remaining.

I run Time Machine and have a 1T external.
How do I regain memory on my iMac?
What is safe to delete?

Extra space /Storage drives
The second drive you connect is going to be your "extra storage drive" basically to free up space off the internal boot drive by transferring files to it.
Formatting:
You first need to format this drive, you use Disk Utility in the Applications> Utilities folder.
On the FAR LEFT side will be the 'name of the drive make + numbers/letters ' + "media" click that and then click the Partition tab
(If the partition tab does not appear, you likely didn't click on the right item on the far left side.)
Now click 1 Partition, Option: GUID, format OS X Extended (Journaled), give it a name like "StorageOne" and click Apply.
Now click the Erase Tab and Security Option> Zero All Data and click Erase (use the same name) this will take a long time, like 2 hours per 1TB. It's going to check the drive for any errors and make sure it's working.
Note: If the drive fails to format, then perform the Zero All Data first, then visit the Partition tab.
Once the second drive is finished, then do the third drive in the same manner, this time naming it "StorageTwo"
Transferring Data off to the Extra Storage drive
Connect only StorageOne drive and visit your User/Movies folder, it's likely the biggest culprit of oversized files. Create a new folder on the StorageOne drive called "ExtraMovies" and transfer the contents of User/Movies to the "ExtraMovies" folder via drag and drop methods.
Confirm the files were transferred and then delete those movies by dragging them to your Trash can and selecting "Empty Trash" from the Finder menu (if you select Secure Empty Trash on large files it takes a really long time to finish as it's scrubbing the drive, likely unnecessary except for sensitive files)
If you have a large amount of User/Files elsewhere, you will have to search yourself and repeat the same steps to free up room on your internal boot drive.
Once you have made some free space, download this free program to help you visualize where all your space is being taken up.
http://grandperspectiv.sourceforge.net/#download
Once you have completed moving files to the StorageOne drive, connect StorageTwo and copy the contents of StorageOne folders to StorageTwo drive. Both drives have to be connected of course.
Rule of thumb
Maintain TWO separate hardware copies of your User data at ALL TIMES
Because you need more room, thus the storage drives are for extra space. The TimeMachine drive is a backup of your internal boot drive and the second storage drive is a backup copy of the first storage drive. So that way your sticking with the rule of thumb, get it?
Don't connect TimeMachine while your transferring files, or formatting drives, you don't want it to "kick in" while your doing all this heavy work or transferring a large amount of files, I think it does so every hour, which you are going to taking quite some time to do all this work.
Once your all done making room and copying files to the Storage drives, disconnect them and label them and date them.

Storage Spaces: Virtual Disk taken offline during file copy, marked as "This disk is offline because it is out of capacity", but plenty of free space

Server 2012 RC. I'm using Storage Spaces, with two virtual disks across 23 underlying physical disks.
* First virtual disk is fixed provisioning, parity across 23 physical disks: 10,024GB capacity
* Second virtual disk is fixed provisioning, parity across the remaining space on 6 of the same physical disks: 652GB capacity
These have been configured as dynamic disks, with an NTFS volume spanned across the two (larger virtual disk first). Total volume size 10,676GB. For more details of the hardware, and why the configuration is like this, see: http://social.technet.microsoft.com/Forums/en-US/winserver8gen/thread/c35ff156-01a8-456a-9190-04c7bcfc048e
I'm copying several TB from a network share to this volume. It is very slow at ~12MB/sec, but works. However, three times so far, several hours in to the file copy and with plenty of free space remaining, the 10,024GB virtual disk is suddenly taken offline.
This obviously then fails the spanned volume and stops the file copy.
The second time, I took screenshots, below. The disk (Disk27) is marked offline due to "This disk is offline because it is out of capacity". And the disk in the spanned volume is marked as missing (which is what you would expect when one of its member disks
is offline).
I can then mark the disk (Disk27) back online again, and this restores the spanned volume. I can then re-start the file copy from where it failed. There doesn't appear to be any data loss, but it does cause an outage that requires manual attention. As you
can see, there is plenty of space left on the spanned volume.
Each time this has happened, there are a few event 150 errors in the System event log: "Disk 27 has reached a logical block provisioning permanent resource exhaustion condition.". Source: Disk.
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="disk" />
<EventID Qualifiers="49156">150</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2012-06-07T11:24:53.572101500Z" />
<EventRecordID>14476</EventRecordID>
<Channel>System</Channel>
<Computer>Trounce-Server2.trounce.corp</Computer>
<Security />
</System>
- <EventData>
<Data>\Device\Harddisk27\DR27</Data>
<Data>27</Data>
<Binary>000000000200300000000000960004C0000000000000000000000000000000000000000000000000</Binary>
</EventData>
</Event>
This error seems to be related to thin provisioning of disks. I found this:
http://msdn.microsoft.com/en-us/library/windows/desktop/hh848068(v=vs.85).aspx. But both these Virtual Disks are configured as Fixed, not Thin provisioning, so it shouldn't apply.
My thoughts: the virtual disk should not spuriously go offline during a file copy, even if it was out of space. And in any case, there is plenty of free space remaining. Also, I don't understand the reason for why it is marked as offline ("This disk is offline
because it is out of capacity"). Why would a disk go offline because it was out of thin capacity, rather than just returning an "out of disk space" error while keeping it online.

Interesting Thread, I've been having the same issue. I had a failed hardware RAID that was impossible to recover in place, so after being forced to do a 1:1 backup, I find myself with 5 2TB hard drives to play with. Storage Spaces seemed like an interesting
way to go until I started facing the issues we share.
So my configuration is A VM Running Windows Server 2012 RC with 5 Virtualized Physical drives using a SCSI interface, 2TB in size that make up my storage pool. A Single Thinly provisioned Disk of 18 TB (using 1 disk for parity)
Interestly enough, write speed has not been an issue on this machine (30~70MB/s, up from 256k on the beta)
Of note to me is this error in my event log 13 minutes before the drive disappeared:
"The shadow copies of volume E: were deleted because the shadow copy storage could not grow in time.Consider reducing the IO load on the system or choose a shadow copy storage volume that is not being shadow copied."Source: volsnap, Event ID: 25, Level: Error
followed by:
"The system failed to flush data to the transaction log. Corruption may occur in VolumeId: E:, DeviceName: \Device\HarddiskVolume17.(The physical resources of this disk have been exhausted.)"Source: Ntfs (Microsoft-Windows-Ntfs), Event ID: 140, Level: Warning
I figure the amount of space available to me before I start encountering physical limits is in the vicinity of about 7TB. It dropped out for the second time at 184 GB.
FYI, the number of columns created for me is 5
Regards,
Steven Blom

Adding a new partition in free space wipes all others?

geez, I hate writing a question when I think I've already found the answer!!
But in this case, the answer's so baad, I thought I'd run it by you all before I hit "desperation" mode! Here goes...
I've got a USB 1TB external that I back up on to. It's in 4 partitions (audio, video, system, archives). The 4 partions are using about 750 Gb total, with 250 Gb free. I wanted to resize the "system" partition, as it was getting pretty full. I found some instructions about; (1.) creating a new, fifth, empty partition out of that 250Gb free space then (2.) "merging" the new partition and the system partition, resulting in a single larger partion for system backups. All other partitions *should* have been left untouched.
I was a bit wary of it all, but Disk Utility's Help says, "You may be able to create multiple partitions on your disk without losing any data" and then goes on to tell me how to, using the + sign, create a new partition out of the 250Gb of free space.
I followed the instructions to the letter but, after "Applying", it did create the new fifth partition, *BUT IT WIPED ALL OF THE DATA OFF OF THE OTHER FOUR PARTITIONS!!*
I'm in major panic mode, did a bit of searching and, on Indiana Univ. help page, found:
"Warning: ...when changing the partition scheme in Mac OS X 10.5 and later, partitioning your hard drive with Disk Utility erases all the information on the drive."
As I see it, a direct conflict to what Apple claims in Disk Utility's Help.
So, I'm about to pull out and upgrade my data recovery programs - - will just try and get the pix and tunes back, I guess.
But if anyone has any idea how I can "undo" what's been done, it sure would help!!
many thanks in advance,
b myers

I'm not sure what you did exactly, but having done it you cannot undo it. You may yet be able to recover files from the drive using recovery software:
Basics of File Recovery
Files in Trash
If you simply put files in the Trash you can restore them by opening the Trash (left-click on the Trash icon) and drag the files from the Trash to your Desktop or other desired location. OS X also provides a short-cut to undo the last item moved to the Trash -press COMMAND-Z.
If you empty the Trash the files are gone. If a program does an immediate delete rather than moving files to the Trash, then the files are gone. Recovery is possible but you must not allow any additional writes to the hard drive - shut it down. When files are deleted only the directory entries, not the files themselves, is modified. The space occupied by the files has been returned to the system as available for storage, but the files are still on the drive. Writing to the drive will then eventually overwrite the space once occupied by the deleted files in which case the files are lost permanently. Also if you save a file over an existing file of the same name, then the old file is overwritten and cannot be recovered.
General File Recovery
If you stop using the drive it's possible to recover deleted files that have not been overwritten by using recovery software such as Data Rescue II, File Salvage or TechTool Pro. Each of the preceding come on bootable CDs to enable usage without risk of writing more data to the hard drive. Two free alternatives are Disk Drill and TestDisk. Look for them and demos at MacUpdate or CNET Downloads.
The longer the hard drive remains in use and data are written to it, the greater the risk your deleted files will be overwritten.
Also visit The XLab FAQs and read the FAQ on Data Recovery.
For future reference:
To resize the drive do the following:
1. Open Disk Utility and select the drive entry (mfgr.'s ID and size) from the left side list.
2. Click on the Partition tab in the DU main window. You should see the graphical sizing window showing the existing partitions. A portion may appear as a blue rectangle representing the used space on a partition.
3. In the lower right corner of the sizing rectangle for each partition is a resizing gadget. Select it with the mouse and move the bottom of the rectangle upwards until you have reduced the existing partition enough to create the desired new volume's size. The space below the resized partition will appear gray. Click on the Apply button and wait until the process has completed. (Note: You can only make a partition smaller in order to create new free space.)
4. Click on the [+] button below the sizing window to add a new partition in the gray space you freed up. Give the new volume a name, if you wish, then click on the Apply button. Wait until the process has completed.
You should now have a new volume on the drive.

Internal Hard Drive Free Space Issue

Hey,
I recently upgraded my 17" MacBook Pro from Tiger to Snow Leopard but the upgrade seems to have created a number of problems, the most notable being the lack of free space now available on my internal hard drive.
I also had to install a trial version of Aperture 3.0.3 in order to access my aperture library as the older version of Aperture is not compatible with Snow Leopard.
At this point the free space available on my internal hard drive was 36GB and my aperture library was 39GB. I had to uninstall Photoshop Elements 9 in order to create enough free space to open this library.
I bought an external hard drive and after some organising (importing and exporting to and from external hard drive), I eventually moved all photo files/folders, projects and libraries onto this external drive, leaving only one in-progress project (about 3GB) left on the internal volume.
I also exported my iTunes library and any other files to this external drive.
All trashes have been emptied.
The problem is that, despite all this clear-out, I now only have 2GB of free space on the internal hard drive.
I ran Disk Inventory X and it shows that my home folder is using 155GB of space, which seems ridiculous considering there is in effect nothing left on my laptop save for the application programs and the one remaining project.
I have manually checked through this folder and all its subfolders and have found nothing that would accumulate to this amount of space.
I have repaired an issue with the internal volume, but it is now showing a “minor” problem with the volume header.
If someone can provide and explanation/solution to this I would be very grateful as it is severely slowing my workflow at the moment.
Thanks

Baresi:
I suggest that you begin with Repair Disk
Insert Installer disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu (Panther and earlier) or Utilities menu (Tiger) and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
(Check S.M.A.R.T Status of HDD at the bottom of right panel, and report if it says anything but Verified)
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
If DU reports errors it cannot repair you will need to use a utility like Tech Tool Pro or Disk Warrior
I recommend that you make sure that you make a bootable clone of your entire volume using a utility like SuperDuper or Carbon Copy Cloner.
You should also seriously consider installing a larger capacity drive.
cornelius

Is there a way to see free space on an iPod in iTunes 11?

In iTunes 11 I can't find a way to see Remaining Space on a connected iPod. The graphical bar (which oddly only shows useful information when you mouse over it) shows space used, the Summary tab shows Capacity but nothing seems to show Free Space Remaining.
Am I missing this? How are we supposed to know what amounts of songs will fit when we manually manage our libraries (which I do because syncing is just a mess).
UPDATE:
Apparently, according to Apple, the only way is to mouse over the unused space in the graphical bar. Wonderful.
Thanks

The grey portion shows the remaining space on my device.

Remaining free space in my schema

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