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.

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Why is there a lot of CPU usage on mostly IO operation?

I have a process writing binary files into ext3 filesystem. I would assume that this should be a pretty easy process on CPU, but I see 45% system CPU utilization. It's a 40-cores 80-threads server, ...
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ext3 multi process write fragmentation

If multiple processes write to large files on an ext3 filesystem, like cping simultaneous, will the written files be interspersed in small blocks, or does ext3 handle the situation in a better way?
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How much data needs to be written to format a drive for ext3 / ext4?

If formatting a hard disk with mkfs.ext3 or mkfs.ext4, how many mb's will be written per mb space formatted?
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31 views

Best way to access ext partion in windows?

What is the most stable and easiest way to get readable access of linux partitions in windows? All software and drivers I´ve found seem to have been dead/inactive for at least 4 years. Native ...
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1answer
530 views

After deleting lots of large files, free space increases with a large delay

Yesterday, I have deleted 71 GB of files on my home/media server. Free Space before: 117 GB Free space after: 126 GB So, instead of having 71 GB of additional free space, I only had 9 GB. I have ...
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51 views

Accesing EXT3 partition form WIN XP

I have WIN XP partition on my PC. It is used from time to time, but I need access to one particular EXT3 formatted Linux filesystem in read/write mode. Sourceforge offers Ext2Fsd. Nice, but it works ...
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68 views

ext3 vs ext4 bonnie++ rand/seq create speed

I am testing the difference between ext3 and ext4 for our application. When I run both filesystems through a bonnie++ test, the results for file creation on ext4 aren't very good. While ext3 can ...
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185 views

Network Error : Windows Cannot access on Ext2Fsd ext3 drive

Unable to execute exe files from ext3 drive form Windows7 64 bit giving error :Network Error : Windows Cannot access Error code :0x800704b3 PS: Creating editing copying everything else works ...
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61 views

Does shrinking a partition to its minimum size then expanding it increase performance?

As a VPS administrator, I've shrunken and cloned partitions (or disk images) to perform backups. The shrinking of the partition adds a few extra minutes of downtime, but reduces the amount of total ...
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320 views

Cannot format local loopback filesystem

I'm trying to make a 40GB ext3 local loopback file system. This loopback filesystem is stored on my NAS which is mounted on a Ubuntu Precise 12.04 x64 machine using NFS. The machine has both read and ...
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495 views

Why my external drive turned in read only mode?

I have this HDD (quite new, 4 months old) which I formatted to ext3 (my router supports ext3, not ext4) and I started copying all my data from an older drive on it (1TB data). After a bit (a lot of ...
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Moving 2TB (10 mil files + dirs), what's my bottleneck?

Background I ran out of space on /home/data and need to transfer /home/data/repo to /home/data2. /home/data/repo contains 1M dirs, each of which contain 11 dirs and 10 files. It totals 2TB. ...
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2answers
259 views

Linux: Should off-site backups be stored in ext3 or ext4?

We have been using ext3 for Linux server off-site backups. With everything else on CentOS 6 being ext4, I'm wondering if it would be a better idea to also have the off-site backups in ext4 too? The ...
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2answers
483 views

How to format a disk in ext3 file system with a Block size greater than 4096

I want to format a disk in ext3 file system with the block size as 4096. Is there any possibility to do so? What if we do not write Inode Bitmap while formatting?
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2answers
113 views

I have an ext3 iso disk image. Can I use it and write it to a ext4 partition?

Is it possible to do so ? I am migrating to EXT4 because of the SSD drive that has TRIM funtion. I have to have ext4 partion.
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1answer
6k views

Changing max inode count number in ext3 filesystem in Cent OS

Assuming that I use ext3 filesystem in Cent OS: Can I increase the number of Free Inodes in the filesystem? If Yes how? When I run tune2fs -l /dev/sda1 it got these inodes statistics: Filesystem ...
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2answers
130 views

Is a disk defragmentation needed in this case?

I'm running Debian 6.0.5 (squeeze) with ext3 as the filesystem. I'v read that ext3 does not require defrag, but I was recently trying out some torrent clients and they all came with the allocate disk ...
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60 views

VirtualBox - Disparity between host system hard drive and VDI

I was working on a VirtualBox (4.2.4) VM (Debian Linux 64 bit, using ext3 filesystem, host drive is NTFS) and had a BSOD on the host system while the guest was operating normally. I had changed a ...
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2answers
226 views

restore dd image to another usb stick failed

I'm trying to create a dd image which contains two partition. The first is a ext3,(19MB) the 2nd is fat32.(16MB) I use one 512M usb stick to create image. And use dd if=/dev/sdc of=image.dd bs=1M ...
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1answer
882 views

formatting ext3 to fat32/ntfs on windows 7

In a failed attempt to install Linux Mint on an external hard drive, I damaged the disk. Now, it does not show up in the 'My Computer' folder or in Disk Management. I speculate it might have to do ...
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2answers
594 views

Which file system is the fastest? [closed]

I'm looking to format my hard drive. I've heard about a file system called "ext3", it's supposedly a linux partition and I think is a lot faster than NTFS. But my question, is, is there anything ...
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1answer
159 views

Lost files on ext3 external drive

I have a 500Gb portable HDD that I formatted with ext3 to use with an NAS. Yesterday I was reorganizing the thing and dragged a folder with all my old photos, a few videos, old documents, etc. to a ...
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55 views

find amin to retrieve executed php files by apache

So I have a massive legacy app that consists of half a million php files. For a single request, I would like to know which php files are used by apache to respond. I can look at the apache logs, they ...
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311 views

Unable to mount 2nd 500 Gb USB hard drive

I have two Seagate 500 GB USB hard drives. I installed Debian 2.6.32-5-686 on one of them, and used dd to create a clone of the bootable drive. I have verified that I can boot and run from either ...
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868 views

file-name encoding problems

I googled over this topic but couldn't find what I was looking for... the following "happend" to me: I had my files stored on a NTFS-USB Harddisk, because of space problems I moved them to an ext3 ...
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534 views

Reverse lookup of inode/file from offset in raw device on linux and ext3/4?

In linux, given an offset into a raw disk device, is it possible to map back to an partition + inode? For example, suppose I know that string "xyz" is contained at byte offset 1000000 on /dev/sda: ...
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255 views

How to mount Ext3 on Windows Vista

I had a Ubuntu12 on my PC but due to performance issue I turned back to Windows Vista ; Unfortunately I found that my other volume of 70Gb is not mounted because it's a Ext3 type and of course windows ...
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1answer
102 views

NAS Drive Not Correctly Reporting Files, Directories from a DOS/Command prompt in WIN7

I have an NAS drive on my network, and it works just fine. I can access every file on it with WIN7. However, when I go to a command prompt and perform a directory command, the command reports 0 ...
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471 views

change owner/uid of mount point upon mount

The scenario is like this. Bob has a computer. It crashed. Now he only has the hdd. The hdd is in ext3 format. He go to his office and told the sys admin John to mount this hdd and put the mount point ...
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2k views

Resize underlying partitions in mdadm RAID1

I have a home built NAS, and I need to slightly reconfigure some of my drive usage. I have an mdadm RAID1 composed of two 3TB drives. Each drive has one ext3 partition that uses the entire drive. ...
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71 views

Share nvraid ext3 raid 0 disk across network from Windows Vista

I have a dual boot setup between windows vista 64-bit and ubuntu (11 or 12--latest as of a month ago or so, I think). Ubuntu is installed on an nforce4 nvraid raid 0 disk. Windows is installed on a ...
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274 views

Recovering Ext3 Partition After Failed Move

I had an 1.5TB exteral disk, with an 983.83 GB ext3 partition on it, where the partition was positioned such that there were approximately 400 GB free space before the ext3 partition. I then used ...
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Dealing with different usernames when mounting removable media in Linux

I have a laptop in which my username is, say, "foo". I have an external drive, formatted with Ext4, for which all files are owned by "foo" (at a filesystem level). Now, I have a desktop in which my ...
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How to copy the files from my Linux-formatted external drive to Windows?

My Linux machine crashed, but all the files are backed up on a USB-based external drive. Problem is, it's an ext2 file system, so my other machine, which is a Windows XP machine, cannot read it (it ...
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Lost file mode information on ext3 directory hierarchy

An entire directory hierarchy of mine lost its file mode info. E.g., ed@bob:~/dev$ ls -l nir.git/ ls: cannot access nir.git/test: Permission denied ls: cannot access nir.git/log: Permission denied ...
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2k views

accidental fsck on mounted

I accidently run "fsck" on a mounted partition which was my only parttion. Now I can't boot. It was Fedora 13, filesystem should be ext3. I have booted from usb with ubuntu 11.10.I found that ...
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1answer
1k views

Is it possible to reformat an NTFS drive as Ext3 while keeping the data intact?

I have a 2 TB drive with about 900 GB of data on it. I'd like to convert it to ext3. I understand that there is no way to actually do it. So I'd like to try the following: Shrink the 2TB ...
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1answer
648 views

Adding Space to RAID5 using mdadm, lvm and ext3

I have seen a few descriptions about using mdadm with lvm to create an easily expandable raid, such as this question, but I still think I'm missing something. Say that I create the raid using mdadm ...
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Is there a way for cygwin to access a Linux (ext3) partition?

I'd like to be able to access a Linux partition through cygwin on Windows. My purpose is to backup data from a Linux server to my home computer running Windows 7. Right now it mostly works, except ...
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2answers
594 views

How can I recover files from an hd I accidentally converted from NTFS to EXT3

I accidentally converted my 1TB external drive from NTFS to EXT3. I have a ton of data on the drive and I believe the data should still be there. Is there any way to either convert it back to NTFS ...
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1answer
99 views

fat and ext partitions on same drive, readable by Windows

I have a flash drive with a Debian installation on it, with lots of partitions (however many it makes if you choose all separate during installation). Anyways, what I want to do is create a FAT ...
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157 views

Hard drive size 'loss' using EXT3 Filesystem

We have an Ubuntu backup server with removeable hard drives in caddys. They are standard IDE/PATA, it came to light that although the drives in the caddys are 160GB in size they where only ...
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1answer
2k views

How to extend a Linux ext3 partition?

I have the following partitions on my HDD: I want to extend my Linux partition /dev/sda6 with the unallocated space of ~1GB above it. But when I right click on this partition the option to ...
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2answers
3k views

How can I format an SD card with a more robust Linux-usable filesystem with a specific cluster size for better write performace?

Goal: microSD card formatted... for best write performance for use only with embedded Linux for better reliability (random power failures may occur) using an 64kB cluster size I'm using an 8GB ...
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How can I get access to EXT2, EX3 and EXT4 partitions on Windows 7?

I tried all programs recommended to mount Linux partitions like EXT2 or EXT3 or even EXT4 but no one can do well on Windows 7 32 bit. I want to access read-write, is there a program that can do this? ...
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621 views

Fsck says read block too short

Yesterday I left my Ubuntu laptop alone for a bit, and the power cable got knocked out, so the computer got shut down. Upon starting it up, it insisted on running fsck, which failed, asking me to run ...
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816 views

How to convert ext3 partition to use encrypted file system without losing data?

My embedded Linux device have 2 partitions: small root partition containing OS big data partition which uses ext3 I want to encrypt the data partition by using an encrypted file system. I don't ...
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121 views

How to see recent file changes on ext3 file system?

Looks like I don't understand the journaling facilities of ext3fs. I use a Linux server system with a lot of other users having sudo rights. The problem is that often config files are getting changed ...
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3k views

Linux - how to format multiple file systems within one file?

I need to create a disk image with two empty file systems. I have created it using dd if=/dev/zero of=./disk.img bs=1MiB count=1024 Next, I have created 2 primary partitions using fdisk disk.img; ...
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How can I mount ext3 with restricted permissions, like setting uid, gid and umask?

I want to mount an ext3 filesystem on a device with uid, gid, umask options set. When I use these options during mount, I get an error. Below is the command I am using to mount: mount -t ext3 -o ...