Determining free disk space in a platform independent "java-like" way?

how can i determine free disk space in a platform independent "java-like" way?

Search the forum "free disk space".

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Find the free disk space of each volume using java

Hi All,
I new to advanced java. Can we Find the free space of each volume in our hard disk using java.
regards,
Maheshwaran Devaraj

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Erase free disk space: 1 time or 7 times?

hey guys,
if I erase free disk space (with disk utility), should I do 1 cycle or 7? Why would there be a difference? In the first cycle, all data will be overwritten with zeros, right? (This does suggest a cycle is not 100% accurate, and you therefore need more cycles?)
And if I do 7 times a single cycle, is that the same as doing one time 7 consecutive cycles?
Thanks for making this clearer... (obviously this is not very urgent, I'm just wondering)

And if I do 7 times a single cycle, is that the same as doing one time 7 consecutive cycles?
No. A single pass just writes zeroes. Do it seven times, and it writes zeros seven times. The multi-pass command uses different bit patterns for each pass. One pass is sufficient, though. A modern drive packs the bits so close together that recovery of any data after a singe overwrite of zeroes is very unlikely. If somebody is that determined to get your data, they will go after you, not the disc. Use the Dictionary widget to look up the second definition of "rendition".

Free Disk Space vs Mac Memory Usage

Hi,
I'm wondering if you might be able to help me - I'm so confused with this issue.
I have a MacBook 2008 with an upgraded 320GB HDD, with currently 203GB free disk space.
My back up disk is 120GB - perfect for a time machine back up of 117 GB of data. However, the TM says theres not enough memory because the full size of the back is 150GB? How can this be?
For some reason, the free disk space figure is different to the memory usage figures in About My Mac?
Can anyone explain to me why this is?
My other half uses this computer and has only pictures and files on it, no music or movies? So how can she have utilised 117GB of data? This was previously a shared Mac, but I've deleted my user acc since upgrading and wanted to make this Mac entirely hers.
Any help regarding this will be truly appreciated.
Sincerely,
Tarmak

CarbonCopyClone. It is "donateware" ... pay if you want to. Others use SuperDuper! (both a free and a paid version). I prefer CCC, but do not let that stop you from paying for SuperDuper if others convince you as both are very competent.
It makes a bootable copy of your system partition, and used repeatedly will make "incremental" backups that take far less time than the original backup. I have a TimeMachine backup (I consider it "secondary") and a CCC backup whic I consider "primary" and will eventually save me when my system partition gets cranky and refuses to boot -- use the option key at startup to choose the external disk to boot from.
When you boot from the external drive, which will have CCC running in it, you can then "clone back" to the new internal drive.

Update download trouble: App Store says, in error, "-not enough free disk space"

I wonder if anyone can help me troubleshoot this... I am unable to download some updates as from the App Store, and instead get an error message that suggests I don't have enough free disk space despite there being over 100GB free.
More detail: after installing Mavericks successfully, I started updating a few applications. While downloading iMovie and iPhoto there was an error - can't recall what the pop-up said, but I think it was a fairly general kind of error message. When I then tried to download them again, the App Store gave me an error message about free disk space, so I deleted a bunch of files and tried again. Same result, same error message ("Your hard disk does not have enough free space"). I checked on free space, however, and at this point I had over 100GB of free space.
I tried deleting the com.apple.storeagent folder in my Library/Caches folder, then trying again. but it made no difference. I've restarted, repaired permissions, verified the disk, restarted again, and I'm still seeing the error.
One odd feature of this problem: in the App Store purchases tab (see screengrab below), the icons for both iMovie and iPhoto are missing/broken, which might just point the way to what is going wrong.
System details:
IMac 27", 2009
2.8GHz i7
12GB RAM
Running OS X 10.9
Couple of screengrabs to illustrate:

From the menu bar, select
 ▹ System Preferences ▹ Time Machine
If the padlock icon is closed, click it to unlock the settings and authenticate. Turn Time Machine OFF, then turn it backON and close the preference pane. Wait a few minutes, then try the operation again.

Error message need to free disk space-how do I do that?

I am getting an error message when I try to burn a dvd. "Not enough free disk space for encoding the remaining assets" How do I free the space?

By deleting or temporarily removing items (non system / not DVD related) from your HD.
Take a look here: http://support.apple.com/kb/HT1583
Regards.

Mysterious lack of free disk space

Recently im having a problem with my free disk space disappearing in osx.
running a du command shows a 90GB file usage in my /Library directory, but i cant seem to find or access it anywhere
i enabled hidden files
also ran
sudo tmutil disablelocal
my free space disappears. nothing shows up in finder or other file manager programs.
server:Library peffy03$ sudo du -h -d1
Password:
2.6G          ./Application Support
361M          ./Audio
34M          ./Automator
12M          ./Caches
0B          ./ColorPickers
100K          ./ColorSync
0B          ./Components
0B          ./Compositions
0B          ./Contextual Menu Items
1.1M          ./CoreMediaIO
99M          ./Desktop Pictures
415M          ./Dictionaries
0B          ./DirectoryServices
30M          ./Documentation
0B          ./Extensions
0B          ./Filesystems
1007M          ./Fonts
3.7M          ./Fonts Disabled
65M          ./Frameworks
0B          ./Graphics
18M          ./Image Capture
0B          ./Input Methods
254M          ./Internet Plug-Ins
28K          ./iTunes
0B          ./Java
0B          ./Keyboard Layouts
164K          ./Keychains
20K          ./LaunchAgents
28K          ./LaunchDaemons
188M          ./Logs
5.2M          ./Messages
56K          ./Modem Scripts
0B          ./OpenDirectory
8.0K          ./PDF Services
564K          ./Perl
17M          ./PreferencePanes
384K          ./Preferences
647M          ./Printers
176K          ./PrivilegedHelperTools
0B          ./Python
18M          ./QuickLook
5.2M          ./QuickTime
84K          ./Receipts
0B          ./Ruby
0B          ./Sandbox
140M          ./Screen Savers
0B          ./ScriptingAdditions
1.1M          ./Scripts
4.0K          ./Security
84G          ./Server
0B          ./Speech
0B          ./Spelling
4.1M          ./Spotlight
0B          ./StartupItems
0B          ./SystemProfiler
76K          ./Updates
21M          ./User Pictures
0B          ./Video
4.3M          ./WebServer
45M          ./Widgets
90G          .

30 seconds later
97228896          .
91052984          ./Server
57021568          ./Server/PostgreSQL For Server Services
38736148          ./Server/PostgreSQL For Server Services/Backup
33686588          ./Server/ProfileManager
33686580          ./Server/ProfileManager/Data
29436852          ./Server/ProfileManager/Data/backup
18285404          ./Server/PostgreSQL For Server Services/Data
18235408          ./Server/PostgreSQL For Server Services/Data/pg_xlog
4249724          ./Server/ProfileManager/Data/PostgreSQL
4210716          ./Server/ProfileManager/Data/PostgreSQL/pg_xlog
2696628          ./Application Support
1441632          ./Application Support/GarageBand
1031416          ./Fonts
662968          ./Printers

Free disk space in Finder vs Terminal df command

i am in process of writing a shell script to backup our data.
before starting the backup process, i am checking how much space is left on the disk:
terminal> df -k /my_data_directory/
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/disk0s2 244781464 173055384 71470080 71% /
this states 71.47 GB free space on /
however, the Finder reports 96.17 GB free space on Macintosh HD (which is also mounted on /).
where does that difference come from? how can i "calculate" the real free disk space?

tuscan wrote:
do i get your answer right:
this means the Finder is reporting an amount of free space one can never use?
its number includes those bytes that are unused in used disk blocks?
e.g. say a block is 8k an my specific disk, and i'm saving a file with 1k of text.
the Finder would report 7k of these 8k as free space?
while df takes the whole 8k block as "used"?
As jsd2 points out, it is more complicated than that. I don't have local snapshots running on my machine but I still have a significant discrepancy, although not as large as yours.
df is a fast tool and only looks at blocks. The Finder does more work and keeps track of file sizes and, apparently, the potential to delete them. But if you had a one-byte file, those other 4095 bytes wouldn't necessarily be wasted. You could write another 4095 bytes to that file without losing any disk space.

Free disk space

When I select my HDD in finder and select Get Info it reports that I have 150GB of free disk space, however when I run disk utility it reports that there is only 55GB of free disk space. What is going on? Where is that 95GB discrepancy being used? How do I reclaim it?

See if this helps elucidate:
The Storage Display

Query to find out the free disk space on C: drive

Hi Guys,
I am trying to create a query in Queries section under Monitoring, To find out the free disk space of C: drive.
Am using the below query, but it shows lot many fields, I need only Machine names of the collection and their
Free Disk Space on C: drive
select * from SMS_R_System inner join SMS_G_System_LOGICAL_DISK on SMS_G_System_LOGICAL_DISK.ResourceId = SMS_R_System.ResourceId where SMS_G_System_LOGICAL_DISK.DeviceID = "C:" and SMS_G_System_LOGICAL_DISK.FreeSpace > 1024
Please assist

The SELECT part of the query will govern what fields you are shown, so perhaps try:
Select SMS_R_System.ResourceID, SMS_R_System.NETBIOSname, SMS_G_System_Logical_Disk.FreeSpace
from SMS_R_System
inner join SMS_G_System_LOGICAL_DISK on SMS_G_System_LOGICAL_DISK.ResourceId = SMS_R_System.ResourceId
where SMS_G_System_LOGICAL_DISK.DeviceID = "C:" and SMS_G_System_LOGICAL_DISK.FreeSpace > 1024
I hope that helps,
Nash
Nash Pherson, Senior Systems Consultant
Now Micro -
My Blog Posts
If you found a bug or want the product to work differently,
share your feedback.
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How to find the amount of free disk space on my pc....... in java of course

how to find the amount of free disk space on my pc

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Please for referral information, how can I get more disk space, or actually information and guidelines that can have enough free disk space. How, I have to delete documents or downloading to another drive.

Please for referral information, how can I get more disk space, or actually information and guidelines that can have enough free disk space. How, I have to delete documents or downloading to another drive. (The problem is that Safari could not download the file "iTunesSetup.exe" because there is not enough free disk space.Try deleting documents or downloading to another drive) ... Perhaps this is the main problem why can not open iTunes and inscription is: the folder "iTunes" can not be found or created, and is required. The default location for this folder is inside the "Music" folder. - And after options ok, appears option: Choose iTunes Library with inscription iTunes needs a library to continue. You may choose an existing iTunes library or create a new one - but still following options Choose Library and the following options can not open iTunes ... Please for instructions on how to eliminate the problem or eror ...
Mac is running OS X v10.6.8, Safari should be 5.1.10. Or Mac OS X / Version 10.6.8 / Build 10K549 / Serial Number W8****ATM / Processor 2.4 GHz Intel Core 2 Duo / Memory 4 GB 1067 MHz DDR3 or More Info:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2,4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1,07 GHz
Boot ROM Version: MBP71.0039.B0B
SMC Version (system): 1.62f7
Serial Number (system): W80394HFATM
Hardware UUID: 94647506-C5D0-5D73-BC7F-FC680D238F43
Sudden Motion Sensor:
State: Enabled
<Personsl Information Edited by Host>

buy an external HD 1TB for $60
NO notebook is a mass storage device, so dont try to turn it into one, it doesnt work that way.
Unless youre using it every couple weeks, its static data and should be on an external HD
In the case of a Macbook Air or Macbook Pro Retina with ‘limited’ storage on the SSD, this distinction becomes more important in that in an ever rapidly increasing file-size world, you keep vital large media files, pics, video, PDF collections, music off your SSD and archived on external storage, for sake of the necessary room for your system to have free space to operate, store future applications and general workspace. You should never be put in the position of considering “deleting things” on your macbook SSD in order to ‘make space’.
Professionals who create and import very large amounts of data have almost no change in the available space on their computers internal HD because they are constantly archiving data to arrays of external or networked HD.
Or in the case of the consumer this means you keep folders for large imported or created data and you ritually offload and archive this data for safekeeping, not only to safeguard the data in case your macbook has a HD crash, or gets stolen, but importantly in keeping the ‘breathing room’ open for your computer to operate, expand, create files, add applications, for your APPS to create temp files, and for general operation.

Free disk Space in jdk1.5

How to find the free disk space .I have jdk1.5 being installed.
Can we use getFreeSpace() ?
Which all packages to import

Windows doesn't have a command that cleanly returns the amount of free space in a root drive. There are a number of ways that you can get the information.
One is to create a .bat batch file that does a "dir" command on the root directory, and then pipe the results through a filter to eliminate all but the one line that has the disk space information. like this:
dir c:\ | find "Dir(s)"Execute the batch file using Runtime.exec, then parse the returned line in the Java code.

Operations Manager log flooded with 11903 errors due to "Virtual Hard Disk free disk space" monitor

Management Pack: Microsoft Windows Hyper-V 2012 R2 Monitoring (7.1.10104.0)
Monitor: Virtual Hard Disk free disk space
There appears to be an issue with this monitor. Every hour, each of my Hyper-V servers is reporting dozens of errors similar to the following. It seems like there is a disconnect between the expected return type (integer) and the actual type (decimal) when
checking the free space on VHDX files.
Log Name:      Operations Manager
Source:        Health Service Modules
Date:          2/5/2014 7:59:47 AM
Event ID:      11903
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      BEAST.corp.technologytoolbox.com
Description:
The Microsoft Operations Manager Expression Filter Module could not convert the received value to the requested type.
Property Expression: Property[@Name='Microsoft:9AC8FCAB-800D-424F-ABCB-747063E5FCF1\559D22F4-A565-4AD4-9B71-44FC5D815C0C\0\0\L.FreeSpace']
Property Value: 488033.99609375
Conversion Type: DataItemElementTypeInteger(5)
Original Error: 0x80FF005A
One or more workflows were affected by this.
Workflow name: Microsoft.Windows.HyperV.2012.R2.VirtualDrive.FreeSpaceMonitor
Instance name: Hard Disk
Instance ID: {0C0E0759-D846-963C-21E6-3C1A1C096D5F}
Management group: HQ
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Health Service Modules" />
    <EventID Qualifiers="49152">11903</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-02-05T14:59:47.000000000Z" />
    <EventRecordID>32395</EventRecordID>
    <Channel>Operations Manager</Channel>
    <Computer>BEAST.corp.technologytoolbox.com</Computer>
    <Security />
</System>
<EventData>
    <Data>HQ</Data>
    <Data>Microsoft.Windows.HyperV.2012.R2.VirtualDrive.FreeSpaceMonitor</Data>
    <Data>Hard Disk</Data>
    <Data>{0C0E0759-D846-963C-21E6-3C1A1C096D5F}</Data>
    <Data>Property[@Name='Microsoft:9AC8FCAB-800D-424F-ABCB-747063E5FCF1\559D22F4-A565-4AD4-9B71-44FC5D815C0C\0\0\L.FreeSpace']</Data>
    <Data>488033.99609375</Data>
    <Data>DataItemElementTypeInteger(5)</Data>
    <Data>0x80FF005A</Data>
</EventData>
</Event>

SCOM agent is running as SYSTEM. (I used to run SCOM agents as a low-privilege domain account but eventually surrendered to "The Dark Side" due to the number of issues encountered with that approach.)
PS HKU:\.DEFAULT\Control Panel\International> dir
Hive: HKEY_USERS\.DEFAULT\Control Panel\International
Name Property
Geo Nation : 244
User Profile Languages : {en-US}
ShowAutoCorrection : 1
ShowTextPrediction : 1
ShowCasing : 1
ShowShiftLock : 1
User Profile System Backup Languages : {en-US}
ShowAutoCorrection : 1
ShowTextPrediction : 1
ShowCasing : 1
ShowShiftLock : 1

How Can I Get the Amount of Free Disk Space Using space using windows 7 please share example using GetDiskSpace

How Can I Get the Amount of Free Disk Space using windows 7 please share example using GetDiskSpace i have already studied http://digital.ni.com/public.nsf/allkb/9958B8E473C4EF1786256BBC0053B64F

Reading your question a bit more in detail, I doubt whether you are using Win32 API GetDiskFreeSpace function (for which my previous post is the solution) of Programmer's Toolbox GetDiskSpace function.
With reference to the second one, it works even with disks larger than 2GB but you need to use the proper formatting code to display the returned value. I updated my example to show total free space in the debug output window and added a comparison with 3GB value using UInt64TypeCompareUInt from the Programmer's Toolbox.

Determining free disk space in a platform independent "java-like" way?

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