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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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Journaling Filesystem Performance on SDcard

Currently, I have an 4GB sdcard on which I have an journaling FS partition (EXT3 and EXT4). I am testing the journaling recovery aspect of these filesystems to fix any corruption on an sd. I have an SDCARD on a piece of hardware that simply boots…
dannykim
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ext3 journal inode number

I'm trying to understand more about the ext3 filesystem and was going through the source code when I had a doubt. Would it be possible to figure out the journal inode number for a given ext3 disk using any utility that is out there?
user277465
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EXT3 file operations

I am trying to follow how Linux deals with EXT3 files. I am looking at fs/ext3/file.c where there are file operations that deal with the files are present: const struct file_operations ext3_file_operations = { .llseek =…
hkassir72
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SQLite write performance is approx 10x slower on CentOS 6.3 than MacOSX 10.8.2

Summary: insert/delete/update transactions are taking 10-15x the time on CentOS 6.3 compared to MacOSX 10.8.2 I'm using SQLite (3.7.12) from Perl (DBD::SQLite 1.37). My application has a number of places where it does multiple writes (deletes,…
Elbin
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Optimal directory structure for saving large number of files

One software we developed generates more and more, currently about 70000 files per day, 3-5 MB each. We store these files on a Linux server with ext3 file system. The software creates a new directory every day, and writes the files generated that…
kol
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How to implement Shared Storage for Concurrent File Access between 2 nodes (Linux)

I need to design a Clustered application which runs separate instances on 2 nodes. These nodes are both Linux VM's running on VMware. Both application instances need to access a database & a set of files. My intention is that a shared storage disk…
viv
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ext2/ext3 in embedded device

I would like to be able to use the ext2 or ext3 file system in an embedded device without having to use Linux. I plan to have an embedded processor with a SATA hard drive attached. I have found the source code on Kernel.org but I am unsure how to…
jon b
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Reliable file handoff from producer to consumer

I have two separate Java processes, a producer and a consumer, that behave as follows: Producer: write data file close data file write hash file close hash file Consumer: wait until hash file exists read data file act on data file close data…
John Watts
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How to use /dev/loop0 to create and mount image?

I want to create an image from the contents of a directory(say "/home/sid/folder/"). I then want to use /dev/loop0, format it to ext3 format. Finally associate the image i just created with loop0 and mount it. How do I do this?
Sid Ramadoss
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make: can't find /usr/include/linux/ext3_fs.h

When I try to compile one of my old program which uses ext3 structure with new Fedora 16 I get the message # make Compile main.c In file included from main.c:8:0: giis.h:18:28: fatal error: linux/ext3_fs.h: No such file or directory compilation…
webminal.org
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Does JFS work like the ext3 writeback mode or the ordered mode?

I know that the Journaled File System (JFS) does only journaling of the metadata. But does JFS under Linux work like the ext3 writeback mode or like the ordered mode?
Neverland
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Where does in ext3 source code requests to read an indirect block sent?

i want to find that place and set a flag in that request so i can identify these requests in block io layer. i changed bio structure and add an extra flag and i want to set this flag for all indirect block requests which sent to disk.
Rezass
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How ext2/ext3 tag metadata requests for I/O scheduler?

In a paper i read ext2/ext3 filesystems tag all metadata requests(indirect blocks, ...) for I/O scheduler. but after a few hours reading ext2/3 source codes i couldn't find anything except REQ_META and REQ_PIRO which is just in ext3. i want to know…
Rezass
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Is it possible to check if a file exists without making a request to hard disk in Linux?

This is my first post here. I want to check if a file exists but without using hard disk. For example look at this code:
Fedor
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Command to truncate all filenames at 255 characters

An NTFS directory is open in a bash shell. what command will recursively truncate all filenames in a directory to the 255 character limit required for ext3?
Andrew Hundt
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