Systemdrive free space low

Hi Everybody,
We have a server (dual 2.3GHz PPC 2G RAM) with 3 80G HDs. 2 are RAIDed together for user home directories and the 3rd is the system drive. Nothing is on it but OS X 10.4.11 Server. Yet there is only 7% free space reported in the Finder. The server serves a 25 seat graphic design lab with about 100 users in the WGM. The format is Mac OS X extended (journaled). The disk passes verfication with disk utility, and permissions check out OK too. All visible folders on system drive add up to less than 20G.
What's going on here?
TIA,
David

Hi Folks,
Here's what Tony's command (du -cxhd 1 / (logged in as root)) revealed:
Last login: Mon Dec 1 08:36:44 on console
Welcome to Darwin!
cscgdserver:~ root# du -cxhd 1 /
9.4M /.Spotlight-V100
12K /.svn
0B /.Trashes
512B /.vol
478M /Applications
1.0K /automount
3.5M /bin
0B /cores
512B /dev
0B /Groups
16G /Library
512B /Network
21M /opt
369M /private
2.2M /sbin
31M /Shared Items
1.2G /System
13M /Users
583M /usr
51G /Volumes
70G /
70G total
cscgdserver:~ root#
I've figured out that the Library directory is large because of a few image files that we used with NetBoot to clone the lab workstations. I can move those image files off to a NAS drive which will gain some space.
But what's with /Volumes? It looks like I somehow made an erroneous copy of the student home folders from the RAID pair. Or is /Volumes used for caching? Maybe I did this when I was trying to set up the new NAS disk and make backups? I feel extremely stupid
Thanks again for your help.
David

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Logical disk free space is low.

Hello,
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Hi,
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It says I've got 12,3 GB free space left, of my total 25GB. But my iPhone tells me there is no more space to take pictures or download stuff. It clearly says I have 12,3 GB left. What's the issue here??

It says I've got 12,3 GB free space left, of my total 25GB. But my iPhone tells me there is no more space to take pictures or download stuff. It clearly says I have 12,3 GB left. What's the issue here??

The issue is probably space on the phone, not in your iCloud account. (Space in your iCloud account does not give you more space on your phone.) Check Settings>General>Usage at the top to see how much available space you have. If it's low, you'll have to delete or sync something off our phone to make room for more.

"How do I defrag my mac?" "You don't need to, it does it itself" Fragmented Free Space: 99%. READ THIS NOW

Just a heads up for my fellow Mac users.
"How do I defrag my mac?"
"You don't need to, ever. It does it automatically."
"But it's running really slowly..."
"Repair permissions or something. Defragging is not necessary on a mac."
Techtool pro is now defragmenting my mac. Looks like the job's going to take about 4 hours. I thought I'd give everyone the truth about this while waiting (on a different computer obviously)
The truth is, Apple's defragmenting system ***** BALLS. It has two massive, massive flaws which I feel people urgently need to be made aware of.
#1: It only defragments files up to 20mb. If you're a movie producer, a songwriter, a photographer, or anything which involves working with many massive files, the built in defragmenting program WILL NOT HELP YOU IN THE SLIGHTEST.
#2: It only defragments FILES. Free space is ignored, which eventually causes absolutely hrrendous problems.
Let me give you an analogy here. Imagine your mac's hard drive is a bookcase with lots of books on it.
File fragmentation is when it can't find a gap in the bookcase big enough for the entire book, so it breaks the book into pieces and srotes them in different gaps.
Space fragmentation is when there are gaps all over the bookcase, instead of all the books being pushed to one side so there's a long gap elsewhere.
Apple's built in defragmenting program will only fix the first problem - and even then, it will ignore any book bigger than 20 pages long, if you have bigger books which are broken up, you're screwed.
Why is space fragmentation a problem? It's a problem because it directly LEADS TO file fragmentation. If there is a large block of free space all in one part of the disk, then an entire file can be written to it. However, if there is no single free block big enough for the file, it HAS NO CHOICE but to fragment it.
So basically you might have 5 GB free and want to save a 2GB imovie project. That's cool. But what you may not realize is, the biggest single area of free space is only say 600MB. Others are around 300 and 400. Therefore the file MUST be fragmented into all these different areas, which wouldn't be necessary if all the free space was in one area of the disk.
But apple's built in tools don't do anything about this, at least not in Tiger. PErhaps this has been fixed in later installations but I'm almost certain the same issues exist in leopard.
Your only option is to buy a defragmenting program. I know this ***** but believe me, this IS something you NEED to do if your activity on your laptop involves disk space - intensive projects. I'm using TechTool Pro which has been recommended to me as hands down the best. It has a number of other functions as well, right now I'm only using the defragmenting tools but it has others for repairing damages disk sectors and other mantainence tools. There are other programs such as iDefrag out there as well.
Why am I telling you this? I'm telling you because I experienced mind numbing frustration trying to get answers from the Apple community. Google it or ask the question yourself and you will most likely be whacked in the face with the intro to my post here - "You don't need to, it's not necessary, macs do it themselves, blah blah blah"
Even worse, Apple's own webpage on the subject is nothing short of a disaster. It basically says "You PROBABLY don't need to defragment, unless you work with large files." That's it. You'd expect it to have an extra section saying "If you DO happen to work with large files, here's what you do" but no such section exists. It basically says "You don't need to defrag most of the time, and on the rare occasions when you do, well, too bad, you're screwed."
I urge everyone to heed this or they will be tearing their hair out at how slow their mac has become and the fact that no one will offer any meaningful advice other than the standard, generic, "Repair permissions" - the Mac equivelant of "have you tried turning it off and on again".
My disk is at 99% fragmented free space. NINTEY NINE PERCENT. In other words, although I have 25GB of free space, there was not a single contiguous block on the entire machine. I had almost 5,000 fragmented files as well, mostly imovies. Defragmenting got this down to about 300.
The defrag job is taking more than 4 hours and will probably go on to take a lot longer than that. This machine has been slowly grinding to a halt over the last 3 years and now I know why.
Please don't listen to anyone. Get yourself a defragmenting folder, and email Apple to tell them it's just not good enough to give their customers half assed answers and inadequate basic maintainence tools. Mac OS X must literally be the only operating system out there where something as basic as defragmenting is not only almost impossible to get answers on, but actually costs money to fix once you DO get answers.
As customers, we should not accept this any longer. I intend to spread the above message far and wide.
I LOVE Apple. I've always been "a mac" and I always will be. This in no way a mac bashing post or a windows endorsing one. I wouldn't switch back to windows if you gave me a million euro.
But sometimes even the best developers can royally f*ck up. This is one of them.
There is no readon people should be forced to put up with this crap. Absolutely no reason at all. I've had 3 months of crappy performance with no official explanation whatsoever.
Apple if you're reading this: I love your products. I'm a loyal customer. People are more forgiving than you think, speak up, admit you dropped the ball, and DO something about it in your next updates to Lion and whichever versions of Leopard you are still actively maintaining.
There's no shame in admitting when you're wrong. The shame is in hiding behind false promises and walls of silence.
--Loyal customer, but feeling rather betrayed by all this.

The old rule of thumb was to keep 10-12 GB free. Any lower than that and you will start to have trouble. I was very close to that for a long time and never had any complaints. Now, Lion "encourages" 20% free space (on my newer 250 GB drive) so I try to keep it with more than 50 GB free.
Do you still have the original memory in that machine too? The metal plate you have to remove in the battery compartment also provides access to the RAM. Your machine will take 2 GB of RAM, possibly 3. You definitely want to max that out too.
Regardless, you definitely need a new hard drive. When Apple switched to PC components, they had to take a quality hit. These 2.5" notebook hard drives are not very reliable. I'm surprised your hard drive hasn't died by now. I usually get a new hard drive with every major OS upgrade. A $ 50 investment every couple of years is no big deal.
Unfortunately, you (and I) suffer from being an early adopter in 2006. Those 32-bit machines only accept 2 GB RAM (maybe 3) and are only 32-bit so they can't be upgraded to Lion. Because of this limitation, you won't see as dramatic an improvement as you would with a 2007 machine. If you run more than a couple of applications, your hard drive is always going to have to be doing some VM work. My 2006 machine has even lost its bluetooth. I gave it to my brother. My very similar 2007 Macbook is still running great.
So, you must get a new hard drive because your old one is likely on death's door. If you don't have at least 2 GB - get it. If you can't afford a new machine, you might want to consider an SSD. That might help mitigate your RAM limitations. You can spend from $ 100 to $ 350 and get a dramatic speed improvement.

'erase free space' not secure - it doesn't seem to work?

Just wanted to point out that the erase free space option in Mountain Lion does not seem to work, at all.
A week ago I ran erase free space on my primary data drive then later, out of curiosity, I ran an inexpensive third party recovery program on the disk just to see what happened. Interestingly enough the recovery software was able to find and restore files that I had deleted over a year ago.
This has me thinking, so today I tried it again, only with a 7 pass erase this time. Nope, same thing. After a 7 pass erase (erase free space) this low end, less than $35 recovery software turns up tons of files, everything from stuff I just deleted a few days ago to stuff from over a year ago.
If I'm doing something wrong I would love for someone to point it out to me. Not that I'm toting state secrets or anything on my mac, but still - my privacy is important to me and I assume it is to others.
I'd encourage folks to try this out for themselves.
My set up is a 2011 macbook pro with an SSD as the boot drive, I've got a second harddrive installed in the optical bay and this is where my home folder lives. The secondary drive is the drive where I'm running erase free space.
The only thing that I can think of is that, even though the button is not greyed out, maybe I need to be booted to recovery in order to succesfully run erase free space on system drives?
Any input would be greatly appreciated, otherwise this seems like a pretty ugly security lapse on the part of Apple. Imagine if you're selling your machine and secure erasing before turnign it over to its new owner - and the new owner can run a $35 dollar recovery program and access everything on your machine.
Not good.

Thanks for your response, William.
I think that the issue may have to do with being booted to the system while trying to erase free space. I ran a 7 pass erase free space on a 1TB external Lacie drive this afternoon, the operation took a bit over 6 hours to complete and recovery sofatware is turning up nothing.
This is in contrast to the main drive, which my original post referenced, which is a 500gb 7200 rpm internal drive. A 7 pass secure erase took less than 5 minutes to complete - so, even though the drive is 1/2 the size, there's obviously something not right with the 7 minutes time to complete.
Tomorrow I'm going to try either booting to another account (which doesn't utilize this partcular disk) or booting to recovery and seeing what happens.
I have a feeling that this will solve the problem - I'll post back tomorrow evening.

166Gb of free space not showing in Finder

Hi, my Mac started saying I need to free up space on my Startup Disk. I was suprised, but as I've been doing some film work, I just thought it must take up even more space than I thought. Anway, I free'd up loads of spaced, I moved all my film files to an external disk, deleted them from where they were, and emptied the trash. I've got rid of other things like Internet cache and downloads, basically, I know i have space now. However, my Mac insists on saying I only have about 2Gb free. On another site, someone recommended something called Disk Inventory X, which gives a visual picture of what files etc are taking up space on the Mac. I ran this, and low and behold I have 166Gb free. The screen shot below shows the big blue square of free space. If you can zoom in, it shows this as something outside of the home 'Tiger' thing, under Users - .tiger, as though its partitioned or something?! I don't really understand how Mac's work under the hood of pretty buttons etc, so I'm a bit stuck now.
Can anyone please tell me why my Mac can't see or let me use all this free space?
I am running Snow Leopard 10.6.8. It is a 13" mid 2009 MacBook Pro 5.5, 2.26 GHz Intel Core 2 Duo with 4Gb 1067 MHz DDR3 if that's of any help.
Many thanks in advance.

With regard to corruption at the HD level, it is unlikely but possible - I would run Disk Utility's "Verify Disk" if you haven't already done so.
'It' is the Home folder in Finder
Yes, as I mentioned in my earlier post, it is "normal" (and not meaningful) for a FileVault Home to show an apparent capacity that is twice the capacity of the HD itself. The "Used" space reported there is likewise meaningless - that's why I earlier suggested a different method for determining the total size of your user files. However the reported "available" space is apparently accurate, and at least in my test setup is the same number that you will see for "available" if you Get Info on Macintosh HD.
I have 177Gb of User stuff, this also includes my Applications
So as not to compare apples and oranges, "user stuff" generally refers only to those items within the home folder. Some people have a second Applications folder within the home folder, but if you are instead referring to applications in the standard Applications folder (HD>Applications) then that space is generally not counted as "user files." It makes a difference when you are trying to see if the numbers "add up", as is the case here. In your first screenshot, Disk Inventory X reported 94.5GB in HD>Library, 23.3GB in HD>Applications. and about 13GB in other places, for a total of 131GB, which after the 7% correction to decimal GB, is about 140GB. If you have 177GB of stuff within your home folder using the method I suggested earlier, then that would completely fill your 320GB HD. If you had counted the entire main Applications folder as part of your "user stuff" then you would be expected to have about 25GB free - still not a lot on a 320GB HD.
With regard to just wiping the HD and re-installing the OS, yes you can then drag back your user data, but apps can be problematic. Apps that were originally installed by dragging them directly from a downloaded .dmg or apps that were bought in the App store can usually just be copied back into /Applications, but apps that were originally installed via an installer package often have support files that were installed in other places as well, and such apps usually have to be re-installed from scratch. The Libraries generally contain important information as well (Mail, Keychains, and Bookmarks as well as application support files and preference files). You would also have to re-do network settings, etc.
I asked whether you had a large (>750GB) empty partition of external storage still available, because I think that would be your best bet for recovering everything intact. If you have such a large external partition formatted for the Mac, I would try the following:
Create a new admin account, log out of the FileVault account, and log into the new account. From there, run Carbon Copy Cloner to clone Macintosh HD onto the large external drive. Reboot from that external drive, and log into the FileVault account there. Now everything should be as before, except for one important difference - you should now have enough free space to turn off FileVault! If this works you could eventually clone back to the internal HD, presumably after pruning back some of your stuff if necessary.
FileVault, as you have seen, can cause lots of issues. I have never used it except for testing and tinkering. It was completely re-done for Lion, and Lion's FileVault is reportedly is a big improvement, but I haven't used it there myself.

Cannot delete bootcamp partition/free space on HD (OS X Mavericks)

I am having trouble removing a bootcamp partition made a while ago. I thought removing this partition would be as simple as using disk utility to delete the partition, and extend the Macintosh HD partition back to its original size.
However, after clicking the minus sign using disk utility I am now left with 51.24GB free space where the bootcamp partition used to be and cannot seem to do anything to bring the hard drive back to one single partition.
I have tried using boot camp assistant, which is useless. I have to tick either "Install Windows 7" or "Download the latest Windows support software from Apple", and when I click to install windows 7 (which below says it can be used to remove an existing windows partition), it only lets me re-size the Windows partition to a smaller 20GB size. It does not give me the option to remove the partition like it says it does on the first page and like I have seen on examples online (which I am sure are from previous OS X versions).
I have tried going to disk utility when booting from the recovery disk, however this does not give me the option to erase the entire disk then start again from a time machine backup; it only gives me the option to erase my current 268.48GB Macintosh HD partition, which wouldn't be any use.
I have verified the disk and all seems ok. I am running OS X 10.9.1 on a mid 2010 Macbook Pro. 2.4 GHz Intel Core 2 Duo, 4 GB Memory.
Any help appreciated as I am running low on HD space on my mac and the extra 50 GB that I can't seem to free up would be very useful.

Give this a try:
Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your external 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 Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet
            if possible because it is three times faster than wireless.
This will install the default version of OS X that came with your computer if it came with Lion or later. If it came with Snow Leopard, then you must do this instead:
Clean Install of Snow Leopard
Be sure to make a backup first because the following procedure will erase
the drive and everything on it.
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. 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.
         After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.

Need to separate drive alerts with Logical Disk Free Space monitoring in SCOM 2012

I have an interesting need here to separate our SCOM alerts for Logical Disk Free space so that one alert is for OSSystem drives ONLY (C:/D:) and the other monitor alerts on all APP drives only (E:, etc). So far we have had great success using Kevin Holman's
blog post.
http://blogs.technet.com/b/kevinholman/archive/2009/11/24/writing-monitors-to-target-logical-or-physical-disks.aspx
We have overrides set so that the monitors report ONLY the percentage of free space left and ignores any MB threshold. So far so good, the alert comes in that host A reports low disk space on D: at 2.345...% free or host B reports low disk space on F: at
4.567...% free space etc. Now that we have our monitors working within the Windows Server classes Logical Disk, we need to set these monitors so that one is just for C or D drives with the alert named system Logical Disk Free Space OS Disk Warn and the other
monitor just reports on E - Z drives (excluding C or D) with the alert named Logical Disk Free Space APP Disk Warn.
We are very new to SCOM so I made the rookie mistake of creating a dynamic group for all Windows Server 2003 Logical Disk class that only includes Device Name = C or D. But found out too late you cant point a monitor to a group, it has to target a class.
And using the current monitors we set up with the above blog uses the correct logical disk class, but it doesnt care what instance (device Id = value), it will report low disk space on ANY logical drive. How in the world can we separate and exclude these monitors
so that one alerts only on OS disks (C and D) and the other only alerts on app disks (E through Z)?

Hi Kevsharp,
Quite confusing after reading your question.
So based on your requirement, What i understand is you need separate alerts for all the drives of the disk is running at low or out of space right ?
For the above just create a simple performance counter monitor and use the same counters as kevin has used in his blog.
Now Target: Use Windows server operating system (This will target all the Windows operating system agents in your SCOM. If the specified discovery MP's are installed).
Set a threshold Below 10% is critical or what ever. You will get the alerts in your console.
Gautam.75801

SCOM 2007 R2 : Logical Disk Free Space : Did not Alert

Hello reader ,
I know this might be a repeated hearing for you. I have been sitting wit this issue for many hours now. I would like to understand where or what am I missing.
We have the default 'Logical Disk Space' Monitoring enabled for ALL servers in our environment. In one SQL server, non-system drive(E:) went beyond the warning(2000MB and 10%) and Critical (1000MB and 5%) Threshold.The total space allotted for the Drive
E: was 79GB. Now the total space left today morning was 698MB. But no alert was triggered.
I checked the following
If the health service watcher was available. - Yes it was.
If the Space really dropped to 698 - Yes it did. I verified from Performance Report.
I checked if there are any overrides - Nothing specific found.
In most of the blogs they said me to check if both criteria was successful - As shown above it is clearly matches.
Any idea why this alert was not fired ?
S.Arun Prasath HP ARDE TEAM

Thank you Agarwal ! To Answer your Question.
1) verify the monitor settings again.
=> I did this N number of times.
2) ensure there are no overrides
=> I did this too.
3) ensure that monitor properties are set for the correct Windows OS (same as that of the server).
=>What Do you mean here ?. I did not change any settings , it was there by default. No change was done at all.
4) also confirm that you do not have any other overrides on the two aggregate rollup monitors for "logical disk free space". These aggregate rollup monitors are just below the unit monitor in SCOM console.
=>Those Aggregate Rollup monitors are disabled. As we already have this unit monitor Enabled. There is no link to Aggregate monitor.
If all these settings are true, then can you try this. calculate the exact value in both % and MBytes according to your server, put the same values in your monitor through an override and repro the low disk space condition,. you should get an alert.
=> Not so easy to do this in prod. So will keep you posted when this is tested. Looks like this is the only way we can confirm if the alerts are sent.
S.Arun Prasath HP ARDE TEAM

Systemdrive free space low

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