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Questions tagged [ext3]

Ext3 is a linux filesystem.

ext3 (or third extended filesystem), is a journaled file system that is commonly used by the Linux kernel. It is the default file system for many popular Linux distributions. S

The filesystem was merged with the mainline Linux kernel in November 2001 from 2.4.15 onward.

Its main advantage over ext2 is journaling, which improves reliability and eliminates the need to check the file system after an unclean shutdown.

Its successor is ext4

See Wikipedia for details on ext and ext3.

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resize2fs not resizing the filesystem size equal to disk size?

While trying online file system resize. I see the file system size is less than the disk size by 2MB. Can not figure out what is the issue. Tried with ext3/ext4 file system. I see same issue. I see these logs in dmesg again and again. dmesg, [Fri…
Sunil Barhate
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inode pointer and indirect blocks

I am trying to understand, how does the inode pointer work. Suppose I have the following file structure with 512 byte block size. How will the pointer read the file, if the file partially occupies the 14th block - will it read the whole 14th block…
PrintScreenSys
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Creating large number of directories, subdirectories and files

Is there any tool or script available that creates millions of files directories, sub-directories and sub-sub-directories randomly in Linux and Windows.
Susanta Dutta
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How to create a file named "0" on hosting server (CentOS)

When I create a new file named 0 on my VPS, I always get a directory 0 instead of the file. It happens in the case when I upload a file 0 or create a file by touch 0. It seems that 0 has a special meaning on ext3 Linux file system. Could you advise…
Liki Crus
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Is there any patch available for EXT3 file system to compress?

I read that the patch available for the file system EXT-3 but i could-not trace the patch. So my humble request is that if anyone aware of the locality of the patch for the EXT-3 file system please let me know where its available... Thanks,
kumar_88
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Re-using an inode field

I am in a project where I need to do some book-keeping i.e to indicate whether a particular file has been accessed by a program A. I plan to store this information in the inode as using other additional datastructure would be inefficient. I plan…
Lipika Deka
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What are the essential differences Between ext2 - ext3 and ext3 - ext4?

i really want to know the essential differences between those filesystems, for example the inodes pointer Structure and so on! Thank you
3logy
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Explanation of available disk space on linux

Can you explain why the available space is only 78G but the different beetween 905G and 782 is 123? Where is the other 45? /dev/md2 905G 782G 78G 92% /var File system is EXT-3
user3684020
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Script to extend LVM volume and resize the filesystem

On my server, I have to extend lvm volumes from time to time in order to make more space. For this, I use commands lvextend and resize2fs. I would like to have a command which will present me a list of LVM volumes to choose from and ask for the size…
Floyd
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Space needed for reserved blocks on a partition

By default, the ext2/3/4 fs reserves 5% of its capacity to be able to keep running when diskspace is getting low. I also believe it has something to do with allowing "fragmentation between files" or something like this (I haven't been able to find…
Yozamu
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How are access times, modified times, encodings and filenames stored in files on NTFS and EXT3/4?

For academic and task related purposes I need to know how is file related data associated within files on NTFS and EXT. How does the operating system know file's name? How do editors know in which encoding to treat the file contents? Are these…
Tower
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storing ext3 in a sql database

Would it be possible to store an ext3-like system in mysql? For example, to build a file metadata system that would include paths and permissions? If so, what would be an example format of it? I suppose the starting denormalized route would be…
user10332687
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EXT3 file system pre digest material

I am looking for understanding EXT3 filesystem source code. I think I need a little pre-digestion to fully understand the code. Can anyone please suggest some material(blog etc.) where I can get some basic understanding of the source code.
Manish
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ext3 linux kernel implementation

I just read http://olstrans.sourceforge.net/release/OLS2000-ext3/OLS2000-ext3.html which is an excellent review of the design issues used when journaling was implemented in ext3. Could someone point me towards the section of the linux kernel code…
user277465
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Create a hardlink to an open inode

I deleted an ext3 file by accident. But I had a (fresh) backup copy so I put it back. Unfortunately the file was opened at the time of deletion, so now it exists in 2 copies: the visible copy and the invisible copy. The invisible copy is still…
nponeccop
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