I think this question may have come up on the list before, but I can't find an answer in the archives.
/dev/sda3 111G 102G 3.1G 98% /home
Why is my free space only shown as 3.1G if I have used 102G out of 111 ?
BTW Windows Vista is a disk space hog, a clean installation into a virtual machine took 8GB (minus 840MB for virtual memory)
That's before you add any apps (and office 12 is Huge)
On 19 Jun 2006, at 9:22 am, Wayne Stallwood wrote:
I think this question may have come up on the list before, but I can't find an answer in the archives.
/dev/sda3 111G 102G 3.1G 98% /home
Why is my free space only shown as 3.1G if I have used 102G out of 111 ?
I seem to remember there is a certain amount of the disk that is reserved for the root user. I can't remember how much that might be, but that may be where some of the space is going.
Cheers,
David
On 19-Jun-06 Wayne Stallwood wrote:
I think this question may have come up on the list before, but I can't find an answer in the archives.
/dev/sda3 111G 102G 3.1G 98% /home
Why is my free space only shown as 3.1G if I have used 102G out of 111 ?
Hi Wayne, I don't know the answer (in the proper sense of know), but it seems that this sort of apparent shortfall is normal. For example, here are some 'df' results from 2 of my machines:
A: Filesystem blocks Used Available U + A % of blocks /dev/hda1 7932792 1536926 5984604 7252530 94.8% /dev/hdc4 2405967 2051686 229894 2281580 94.8% /dev/hdb2 3989159 2759955 1022816 3782771 94.8%
B: /dev/hda3 19022364 14249156 3806900 18056056 94.9% /dev/hda1 23302 3279 18820 22099 94.8% /dev/hdb3 17624856 14257172 2472380 16729552 94.9%
So generally Used + Available comes to almost 95% of the total blocks on the filesystem. My guess is that the remaining 5% is "filesystem overheads" like the inode tables and whatever else is fixed when the filesystem is set up, and can't be used as "data space" -- i.e. is not available. And presumably "Used" refers to the amount of usable space, not the total on thr FS.
In your case (modulo rounding) Used + Available = 105.1 which is 94.7% of the total blocks-- just like mine!
BTW Windows Vista is a disk space hog, a clean installation into a virtual machine took 8GB (minus 840MB for virtual memory)
That's before you add any apps (and office 12 is Huge)
And I bet that implies hugely RAM-hungry as well! I do hope lots of people upgrade to Vista -- that should lead to a lot of Vista-inadequate (but more than Linux-adequate) kit coming cheap onto the second-hand market.
Best wishes, Ted.
-------------------------------------------------------------------- E-Mail: (Ted Harding) Ted.Harding@nessie.mcc.ac.uk Fax-to-email: +44 (0)870 094 0861 Date: 19-Jun-06 Time: 10:48:53 ------------------------------ XFMail ------------------------------
On Mon, Jun 19, 2006 at 09:22:41AM +0100, Wayne Stallwood wrote:
I think this question may have come up on the list before, but I can't find an answer in the archives.
/dev/sda3 111G 102G 3.1G 98% /home
Why is my free space only shown as 3.1G if I have used 102G out of 111 ?
I'll assume an ext3 filesystem with the default settings - in which case 5% (ish) is reserved for root's use when the disk is getting tight on space, to keep the system running for a little while longer. You can tune2fs the filesystem and make the amount less or more, depending on what you want. My root partition on my laptop has the following settings: Block count: 500015 Reserved block count: 25000
/dev/hda1 1.9G 180M 1.7G 10% /
Now, if I do: # tune2fs -m 10 /dev/hda1
Then we have: Block count: 500015 Reserved block count: 50001
/dev/hda1 1.9G 180M 1.6G 11% /
Block counts are from tune2fs -l /dev/hda1
Hope that explains it!
Cheers,
Cheers Brett (and others) for answering this
One less thing in the world I have to wonder about
-
Brett Parker -
David Reynolds -
Ted.Harding＠nessie.mcc.ac.uk -
Wayne Stallwood