A file system is the specification of how files in a computer should be stored, named and organized. This tag should be used for generic file system questions. For specific file system questions (FAT, NTFS, ext4, ...) use the appropriate tag instead.

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Is XFS a distributed file system or a journaling file system?

Is XFS a distributed file system or a journaling file system? In Wikipedia it says that XFS is a journaling file system.But in the Berkely website they mentioned that it is a serverless file ...
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Mounting /dev/sda on / and /dev/sdc on /usr

I want to know why you can do that kind of things? Why can you mount /dev/sda on / and /dev/sdc on /usr? Why don’t directory contents collide between /usr of /dev/sda and /usr of /dev/sdc? It ...
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What could cause the files to be replaced with null bytes, size and timestamp not modified?

Something has malformed a bunch of files on my hard drive. The malformed files: have theirs content replaced with NULL bytes, are exactly the same size as before the malform happen, modification ...
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Any limitation for having many files in a directory in Mac OS X?

I have 100,000+ files in a directory in my MacOS X and looks it is slow for my script to read a file in them. Is there any limitation or recommendation to have that many files? Should I split them ...
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1answer
180 views

Why can't copying files regardless of file size have a complexity of 1? [on hold]

If the file system of a computer always seems to represent a tree I assumed it it had to be made with some sort of tree data structure. So if it is a tree data structure why can't it be as simple of ...
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1answer
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How to set up mass executable file permission to all my scripts?

PROBLEM I have new servers and copied lot of files with these conditions: lot of files different suffix lost permissions among them there are other files now I need to set up all and only ...
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1answer
28 views

How to count the number of times a file/directory has been opened?

I'm trying to find the number of times a file has been opened (since the OS inception). I'm thinking of doing this via stat, but most flags only return the difference between the LAST time it was ...
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17 views

Unable to launch an instance: Can't find ext4 filesystem openstack?

I have followed installation guide from this link http://docs.openstack.org/icehouse/install-guide/install/apt/content/nova-compute.html I have successfully configured 3 nodes controller, compute and ...
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23 views

How to move files on a filesystem remotely without downloading and then uploading the content on the client?

I have a home server box set up running Windows 7 that is usually managed remotely (either from the local network or an external network) and there are often times that there is a requirement to be ...
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3 views

Convention / File Hierarchy for Compiling Source

Background: I have been compiling a lot of source code lately and I am hoping to learn of a convention to organize source code / compiled output. As an example, I have been statically compiling ...
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15 views

sdcard performance bottleneck

I have loaded my 4 GB almost entirely with mp3 files (FAT32). Now, I cannot remove none of them, even with command line tools. I tried to format e: but cancelled it after 24 hours (sdcard reader ...
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42 views

How to make Folder Properties show modified and accessed dates?

On Windows XP NTFS, when I right click a file → "Properties", I can see the created, last modified, and last accessed date: However for folders, the last modified and last accessed dates ...
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What is the correct method to locate and throw away unnecessary files when your disk is full on Mac OS X? [duplicate]

Looking the size of each file in your system manually in order to find the bottlenecks is, obviously, too inefficient. What is the correct way to have a good overview of which files are consuming most ...
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0answers
53 views

Files Larger Than 4GB Are Not Transferring To Hard Drive?

Moving things from my laptop to a 1TB hard drive. Stops at any file larger than 4GB saying that that there isn't enough space on the hard drive. I checked the formatting on my hard drive and it is ...
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2answers
204 views

How to make a symlinked folder appear as a normal folder

I have two Dart applications I need to dockerize. These two apps use a shared source directory. Because Docker prevents adding files from folders outside the context directory (project/app1) I can't ...
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1answer
23 views

How to solve fsck.ext3: No Such file or directory on redhat 2.6.9-55

I have main two problems here: Error on boot. It said error file system. Forgot root password. How to solve them? This is error occurred when boot, how to solve it while i forgot my root ...
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16 views

google-drive-ocamlfuse does not upload encfs directory content

I am trying to setup automatic upload of an encrypted directory structure to google drive. To do that I use google-drive-ocamlfuse (grive keeps crashing and is never done), and encfs. First I create ...
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Is there any way to mount a .qcow raw image file in Windows?

Is this possible? A Google search turns up only Linux options, which are of no help to me. The qcow files are generated by a 32-bit Vmware android emulator.
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3answers
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Which copies faster, one big file, or several smaller files? [duplicate]

When doing backups, I have noticed that it seems as though copying one large file (e.g. a video) is much faster than copying thousands of small files with the same total size (e.g. a GIT repo). I have ...
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15 views

Do threads/processes that create/delete files/directories under a shared parent dir interfere?

I was wondering: If I have a directory /a/b/c/ and under c X threads create subdirectories and files and delete them (they are temporary directories and files as intermediate steps of processing) do ...
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1answer
22 views

Extract Contents of .img with unknown filesystem

I have an image file: kali-linux-1.0.9a-armhf.img. It's an image of Kali Linux ARMH build. I am trying to extract the contents of the image, but to no avail. I have tried to mount the image, but I ...
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1answer
30 views

Why can't I delete a file in use on Windows? [duplicate]

On UN*X systems, I can rename or delete whatever files I want, even they are in use. However, on Windows, when a process is using a file, it cannot be renamed or deleted. If offline files are used, it ...
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Which file system best handles multiple, concurrent write sessions: GFS2, pNFS, FS-cache, XFS or OCFS2?

Which file system can handle more concurrent write sessions; let’s say 32 write sessions: GFS2 pNFS FS-cache XFS OCFS2 The file system has to handle 32 concurrent sessions with each session ...
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1answer
22 views

Filenames with illegal characters

I recently transferred a backup of my CD collection from a Windows server to a new NAS. When I mount it on my Linux desktop, I'm seeing a lot of directories and files where characters with accents and ...
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2answers
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Is it possible to install Windows on unsupported filesystem?

Suppose that I want to write Windows driver for other filesystem (maybe my own?). Is it possible to install Windows on that? Eventual problems could come from just Windows installer or it could be ...
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Syncplicity: can only change timestamps temporarily

Following the answers from How can I change the timestamp on a file?, I tried setting the timestamp of a file by typing $(Get-Item zz).lastwritetime=$(Get-Date) in PowerShell and by typing touch zz ...
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1answer
21 views

How to Create Virtual Block Devices

I want to create multiple virtual block devices like /dev/sda and then use them to create an md device for test purpose. I have mounted my root filesystem on /dev/sda1 and don't have extra space to ...
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15 views

Find largest versions of picture files

Following a server hard drive crash and recovery I now have a directory with 3000 pictures without a proper name or directory structure. There are about 300 distinct pictures, the rest are resized ...
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1answer
30 views

How to identify and mount filesystem of partition type 63 - Unixware

How can I identify and mount the filesystem from a old Unix machine ? Using file to the dd image simply reports X86 boot block. Using testdisk and checking the bootblack I get multiple entries ...
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1answer
42 views

Why is Windows able to rename a folder quicker than it is able to delete one?

In the work I do, I often have to rename and delete folders. Shift-deleting a folder goes pretty quickly - perhaps 10-20 seconds for 1-2GB, while renaming the same folder occurs instantly. My ...
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1answer
35 views

How to create USB flash “.bin” image in Linux without physical drive

I have some files under Linux, which I have to copy to multiple SD-cards under Windows periodically (not bootable, but with file permissions, filesystem ext3). Now the procedure is: I copy files to ...
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2answers
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What happens on the OS when the user changes the date/time? [closed]

I'm just curious about a question: let's say we have a folder containing some very important files (could be the System32 directory). We know that the filesystem stores some information about their ...
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1answer
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Character set in Linux filesystem

I just installed some Arch Linux packages, which dumped this file onto my disk: /etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem Note that the file name seems to contain Turkish ...
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26 views

Symbolic Links to a subfolder

Problem This is my directory structure F:\dir\lev1\lev2\lev3 Consider there are files at every level of this directory structure. I'd like to create a Symbolic Link in F:\dir to the directory ...
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1answer
83 views

No space left on device, but the partition only half full and inodes are available

I was running a Python process which creates a huge number of files under a single directory (I should have been smarter and bucketed them into multiple directories, but that's another story). After ...
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1answer
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How do I reload windows without rebooting

I was wondering, is it possible to reload all the files in windows without rebooting the system to save time like when you install a new program and it asked you to reboot your PC, but instead I want ...
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2answers
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Linux Filesystem with either no discretionary access control (user/group permissions) or that can have it disabled

Is there a file system for linux that has no permissions? I have a folder that is shared between multiple applications and although they are all running in the same group, I am constantly having ...
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1answer
25 views

Transfer large amount of data in chunks

I need to copy data from one server to another however the only median we have is a small HDD. What is the best way to split up the data and merge it back on the other end without creating archives as ...
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Differences of aufs, unionfs and overlayfs from each other

I have to join two file systems, one read-only (squashfs) and one read-write (ext4). My plan is to mount the read-write filesystem over the read-only flesystem so it appears writable. When I make some ...
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can filling up a disk and then freeing up space cause filesystem problems a month later?

I had an incident happen not too long ago with a server running mysql. Someone had enabled slow query logging on the server but never bothered to implement a log rotation, so the log files slowly ...
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1answer
21 views

Folder named `xyz` appears under the name `Public Desktop` in Windows Explorer?

In Windows 8: I have a folder that is currently named 'unused' but the same behavior occurs with any name that I rename it to. The name appears correctly in CMD when I type dir but when I look for the ...
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1answer
122 views

Ubuntu/Mac Setup — Show Samba and Netatalk

I have setup Netatalk at my home for Time Machine backups, and I would also like for my samba shares to show up on my MacBook. Here is what I currently see: ...
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1answer
9k views

Creation of 1.3 GB file takes only 1 second. How?

I have folder which contains over 200 files and has size of over 1.3 GB: I use Gizmo Drive software to create an .iso file from that folder. The interesting thing is it takes only 1 or 2 ...
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1answer
53 views

Actual File Size on Windows [duplicate]

I have a question related to what I'm currently testing/working on/trying to understand. I created a small text file with the following content abc.txt ABCDEF Now when I view File Properties I ...
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1answer
24 views

Are my disks waking up too often?

I have noticed a sequence of this messages in my logs: Oct 27 02:20:38 kernel: sd 0:0:0:0: [sda] Synchronizing SCSI cache Oct 27 02:20:38 kernel: sd 0:0:0:0: [sda] Stopping disk Oct 27 02:20:38 ...
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1answer
72 views

Recover data from a Samsung DVD recorder's hard drive

I have a Samsung DVD recorder: I want to recover data from its hard disk. I need to buy a SATA-to-USB adapter and connect the hard drive to power then to USB and mount it on my PC. I have done data ...
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1answer
55 views

Dropbox permissions issue, elementary OS

Using elementary OS Freya x64 on my laptop I wanted to install Dropbox now. I also use windows 8 on another partition, where dropbox was already installed and working. To not waste space I used this ...
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2answers
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How to migrate a root filesystem to another partition from within running system?

I try to migrate a root filesystem from ext4 to another partition type (zfs) and started with a simple rsync -a --exclude=/boot --exclude=/mnt --exclude=/media --exclude=/tmp --exclude=[all zfs ...
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WAFL - Write Anywhere File Layout

Hi I'm looking for some information on how WAFL works , more specifically I need help in understanding the following parts. To make your task of answering simpler I've outlined a few questions. ...
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1answer
24 views

What is and how to open a .xsig file extension?

I have received a .xsig document, that I can read in plain text. Is there any way of visualize the document with an application?