Questions tagged [filesystems]

A file system (or filesystem) is a means to organize data expected to be retained after a program terminates by providing procedures to store, retrieve and update data, as well as manage the available space on the device(s) which contain it.

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Unix / Linux: backing up an app installation

I was having a discussion recently regarding the fact that *nix doesn't use things like a registry (in the Windows sense) and how this means that everything related to an application (or anything for ...
LRE's user avatar
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Linux - A more fine grained -mtime for find?

find is a great tool for finding files. It has the option to find files that were modified in the last X days with -mtime. However I'd like something more fine grained than that. I want to be able to ...
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Diagnosing cause of orphaned inodes on Linux, busy MySQL?

One of our servers recently experienced some file system corruption and our root file system was automatically remounted as read only. The steps I took to recover were: attempted to remount > ...
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Can I mount a Novell NCP file system in Windows and use it like a standard lettered drive?

If I have a Novell NCP file system can I mount it in Windows and use it as a lettered drive, e.g. G:\? I'm trying to work out if an application based in Java, running on Apache Tomcat can access a ...
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3 votes
3 answers
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Could MFT fragmentation be a problem on my busy file server?

Windows Server 2003 SP2 LUN mounted from SAN Millions of small files across hundreds of thousands of directories (100GB total) NTFS with 4k cluster size While doing the initial file crawl for backups ...
ss2k's user avatar
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7 answers
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How to compare two directories (including sub directories) for differences?

How can I compare two directories with sub dirs to see where is the difference?
alexus's user avatar
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Linux filesystem permissions

If I have this folder: /var/username/secret/ that is 770, then can a file in /var/username/secret/file that is 0777 be read/written by anyone on that same server (shared hosting)?
rFactor's user avatar
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How can I find out what filesystem a particular directory is on

I have a system with symlinks EVERYWHERE, so given a particular directory, is there a simple way to find out what mountpoint this directory is on? Particularly interested in solaris.
Stu's user avatar
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Safe File System for Power Failure?

Has a file system been developed that is completely safe from power failure based corruption? If we assume critical data is being stored without a UPS and performance is irrelevant, does file system ...
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21 votes
11 answers
95k views

How to tell what computer has a file open on a network share?

Environment: Windows XP sp3, Windows 2003 server Problem: We have several dozen kiosk machines each with the same logon name who occasionally and briefly a file on a share. The rate is several ...
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How to get a maximum file size of VZFS parition?

I have a VPS hosting with a VZFS file system. How can I determine maximum file size of VZFS partition? UPD: Free space (or total space) is not what i need. Sometimes file cannot occupy a hole ...
Nulldevice's user avatar
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4 answers
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Any Available Versioning File Systems like VMS used to have

I am looking for a versioning file system like VMS used to have. Are there any modern equivalents I can host for Windows clients? Requirements: Ability to map a drive to the shared file system from ...
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2 answers
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Restrict Directory Size

I'm installing a program on my Linux server and it stores data locally for a week. However, there is an error that can occur sometimes that will keep it from deleting the data. To safeguard against ...
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7 answers
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Is it possible and how to mount an AIX disk into Linux?

I have a disk from a AIX server that I need to explore in order to recover some data (the server is down). Is it possible to mount AIX partitions on Linux? How?
Ghislain Leveque's user avatar
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Can fsck on ufs cause data loss?

I'm on FreeBSD8. I have a problem with a partition. I can't mount it. It says "Operation not permitted." I run fsck -t ufs /dev/da0p1. After it finish the operation, I can mount it successfully. But ...
teerapap's user avatar
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Which is the best file system to run a web server and a database on debian?

Which is the best file system to run a web server and a database on debian ? Example : On debian ext2 or ext3 take too long to manage huge folder with huge subfolder my administration task take to ...
belaz's user avatar
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46 votes
3 answers
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What is the maximum number of files a file system can contain?

Given the current structure of a directory entry on a ext4 file system on Ubuntu, what is the maximum number of files a file system can contain? What is the general method of calculating the maximum ...
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6 votes
3 answers
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How do I exclude a folder when performing file operations i.e. cp, mv, rm and chown etc. in Linux

How do you exclude a folder when performing file operations i.e. cp etc. I would currently use the wild card * to apply file operation to all, but I need to exclude one single folder. The command I'...
Camsoft's user avatar
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Selective syncronisation of two directories in UNIX (Solaris)

I'm wondering if anyone knows of a nice way to partially duplicate (hard link) files between two directory structures? My current fall back is a script invoked by cron. As background: I ask since I ...
Tom Duckering's user avatar
2 votes
8 answers
14k views

Tool to search text in big files [closed]

I'm looking for a tool to find a line containing a searced text inside a file that has a size of 4 GB
Paul's user avatar
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3 answers
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"One-sided" diff

I've got two large directory trees--think years of client work for an agency. One is old and out of date; the other is larger and in current use. I'd like to delete the former, but I want to be sure ...
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Negative aspects of hiding file extensions in Windows

At my company we work with a lot PDF files. We rename them often; hundreds of pdf files a week and almost all of them have to be renamed. I have always configured windows to show file extensions. ...
David Steven's user avatar
5 votes
6 answers
5k views

"Mount" cloudfiles on a Linux server?

Is it possible to 'mount', for ignorance of a better term, a cloud service like as Cloud Files or S3 to a linux / ubuntu server? Ideally I'd like to be able to browse the remote location as if it ...
mO_odRing's user avatar
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Database or File System to Server / Accept Short Audio Clips?

I am working on an application that will allow users to play short audio clips (voice recordings), as well upload short clips. I will be using a Java / Tomcat environment. I am wondering if this type ...
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How do I remove unindexed files from an NTFS system, without unmounting the disk?

I have accidentally created a giant, unindexed, file on an NTFS system and I am trying to remove it. CHKDSK appears to require the disk to be unmounted before the file can be reindexed (and ...
blueberryfields's user avatar
2 votes
4 answers
2k views

Best Long-term Large Filesystem

I store all my Music CDs, Music, DVD Rips, etc on hard drives for quick access and long term storage. What file system should I use? I use a bunch of drives glued together in an LVM so being able to ...
Paul Tarjan's user avatar
2 votes
1 answer
189 views

how to use our existing mac pros as distributed storage?

I work in a lab that has to support some fairly processor-intensive user applications but basically has no need for local disk storage because we don't guarantee any kind of data persistence. However, ...
Wang's user avatar
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2 answers
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What is the best linux file system and fs configuration for embedded systems

After experiencing some crash related file system outages (requiring manual fsck and repair, we are looking for the optimum file system and fs config for an embedded linux with HDD or SDD mass storage....
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1 vote
2 answers
2k views

How can I minimise the size of an ext3 partition (and its LVM logical volume)?

I am using LVM on Ubuntu 9.10 (Karmic). I have a single LVM physical volume (and a single volume group). I have an ext3 filesystem inside an LVM logical volume which I no longer use, but for the time ...
Andrew Ferrier's user avatar
6 votes
4 answers
3k views

MogileFS/GlusterFS/etc + Amazon EBS + Amazon EC2

I have a web application that serves binary files (images, etc). Our application runs on Amazon EC2. We were originally going to use Amazon S3 to store and serve these files, this is no longer an ...
William's user avatar
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6 answers
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Does a file system lose performance as it fills up?

The context of the question is a Windows computer (so the filesystem in question is NTFS) that is filling up with data that can probably be removed. But I don't know whether it's worth the time to ...
DarkTygur's user avatar
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2 answers
383 views

Decrypting EFS w/o altering timestamp - possible?

I'd like to decrypt some EFS-encrypted files, but I do not know how to do that without altering the timestamp. When encrypting/decrypting files, the modified-time is set to the current time. I'd like ...
grojo's user avatar
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8 votes
5 answers
1k views

Thoughts on Linux server file system layout

I'm wondering and I'm sure that many out there are wondering also, on which would be the best or at least the optimal file system layout for a GNU/Linux based server. I'm aware that there is no ...
crazybyte's user avatar
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2 votes
3 answers
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Linux - Any way to limit disk usage on a per directory level?

I know I can use quota to limit the amount of disk space per user. However I'm wondering if there's some way in Linux to limit the disk usage of a directory? Ideally I'd like something like ...
Amandasaurus's user avatar
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1 vote
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how to mount an ext3 filesystem with a smaller blocksize then device blocksize?

I had an ext3 filesystem on my hard disk at /dev/hdc2 with a small 1024 byte blocksize. Now I recorded the whole filesystem on a DVD like this: dd if=/dev/hdc2 of=/tmp/image.img wodim -dev=/dev/scd0 /...
ria's user avatar
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7 votes
2 answers
887 views

How to implement document management for non-technical end-users?

I've entered a corporate Windows-based environment where document management includes folder naming conventions with numeric or alphabetic prefixes (e.g. 1 Admin, 2 Executive, 3 Marketing) and file ...
eft's user avatar
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1 vote
1 answer
764 views

Unwanted ._ files showing up from an SMB share

At work, we all use Macs, and have an SMB fileserver set up. Somehow, weird hidden files have been popping up, particularly when syncing between our Macs and the fileserver. I don't what creates them ...
Wolfr's user avatar
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2 answers
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Postgresql "Could not determine cluster encoding"

Background: I was migrating a system from one Ubuntu host to another and along with it a Postgresql database. Unfortunately I don't have access to the original server any longer and the backup file ...
eageranalyst's user avatar
2 votes
4 answers
507 views

Is it a good idea to let files grow above 2GB in ext2?

I'm working on a program that needs to run on a Linux distro with an ext2 filesystem. This program will write files which may become very large. I notice that ext2 has a maximum file size of 16GB to ...
Jason Baker's user avatar
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1 vote
1 answer
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How can I tell a portable drive to ignore bad sectors on a Linux?

I have a USB harddrive, and it's old. It's fat32 formatted. It's so old that parts of it are failing. When I tell it to read or write from a certain parts, I get IO errors on my console (I'm using ...
Amandasaurus's user avatar
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9 votes
4 answers
5k views

Using SSD as disk cache

Is there software for Linux to use an SSD as disk cache? I believe that Sun does something like this with ZFS, though not sure. A quick search provides nothing suitable. The goal would be to put ...
casualcoder's user avatar
0 votes
3 answers
847 views

1TB harddrive not working in linux

Hai I bought a 1 TB new hard disk. When installed in linux it say's fsck.ext3 file system not found. when i checked the BIOS it detected the hard disk. what to do to solve the problem in linux?. ...
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3 answers
808 views

Remote Link on OSX

I have two machines on the same LAN, I usually ssh from one to the other and I was wondering if I could create a symbolic or hard link from a box that points to the other one. I'm using OSX on both ...
Pablo Fernandez's user avatar
5 votes
6 answers
3k views

Linux truncate file

Here's a simple one. How do I truncate an existing file in linux? That is, how do I empty the contents of the file but keep the file. I can always delete the file then touch it but I was wondering if ...
pygorex1's user avatar
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2 answers
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File Operation not supported on Windows drives mounted on Ubuntu

My Windows drives are automatically mounted in Ubuntu. File operations on Windows drives had been going well until today when creating a directory on a nfts Windows drive is denied: $ mkdir /windows-...
Tim's user avatar
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4 votes
2 answers
997 views

Asymmetrically encrypted filesystem

I'm dealing with some data that's governed by specific regulations and that must be handled in a specific manner. I'm finding that this data ends up in some of my log files as a result of the system ...
Justin Thomas's user avatar
0 votes
1 answer
2k views

powershell get changed files and copy them

Trying to copy all changed files from a directory (recursively) to a new location, keeping the directory structure intact. I put the changed files into an array: $datechanged = ($datechanged)....
aSkywalker's user avatar
10 votes
4 answers
65k views

Change filesystem encoding to UTF-8 in Ubuntu

How to find out what charset encoding is used by current file system and how to change it to UTF-8? EDIT: Here is the output of mount: /dev/sdb6 on / type ext3 (rw,relatime,errors=remount-ro) tmpfs ...
jack's user avatar
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5 votes
5 answers
9k views

How to find out what files an installer (rpm, deb) created?

I need to find out all the file system modifications an installer did. Most likely the installed package is an rpm or deb, but an app could of course be simply copied over or compiled and installed ...
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0 votes
1 answer
109 views

Tool to determine filesystem on CompactFlash media

I have a CompactFlash card that is used in a custom piece of hardware. WAV files are written to it. Windows doesn't recognize the media and wants to format it, which rules out FAT 16/32, NTFS, UDF, ...
Todd Brooks's user avatar

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