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Questions tagged [ext3]

ext3 is the default file system for many Linux distributions.

ext3 offers many features as a file system - journaling as well as very efficient directory indices.

283 questions
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How do I list a file's data blocks on Linux?

As I understand it, each file on a Unix-like operating system has an inode number (which can be viewed with "ls -i"), and each inode is a list of disk blocks that contain the actual data of a file. Is there a Linux command which takes a filename as…
mike
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What are the differences between ext3, ext4 , ReiserFS?

And why should I pick one instead of the other?
Andrea Ambu
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Running out of memory running fsck on large filesystems

I look after an old Debian linux box (running etch) with only 512 MB of RAM, but a lot of external storage attached. One ext3 filesystem is 2.7 TB in size, and fsck can't check it, because it runs out of memory, with an error such as this one: …
TimB
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Should we mount with data=writeback and barrier=0 on ext3?

We've been running a server on a VM at a hosting company, and have just signed up for a dedicated host (AMD Opteron 3250, 4 cores, 8GB RAM, 2 x 1TB in software RAID, ext3). While running performance tests, we noticed that some SQLite transations…
NeilB
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Is post-sudden-power-loss filesystem corruption on an SSD drive's ext3 partition "expected behavior"?

My company makes an embedded Debian Linux device that boots from an ext3 partition on an internal SSD drive. Because the device is an embedded "black box", it is usually shut down the rude way, by simply cutting power to the device via an external…
Jeremy Friesner
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What Windows ext3 driver should I use?

I understand that there are several alternatives for using/accessing ext2/ext3 in Windows, such as those described in a HOWTO Forge article and in a another article from a year ago. However, none of the listed items provide full read-write access…
Eddie
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How does the number of subdirectories impact drive read / write performance on Linux?

I've got an EXT3 formatted drive on a Linux CentOS server. This is a web app data drive and contains a directory for every user account ( there are 25,000 users ). Each folder contains files that that user has uploaded. Overall, this drive has…
T. Brian Jones
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mount: cannot remount block device /dev/sda5 read-write, is write-protected

Everything is working as usual except the disk is read-only and don't want to change back. thanks. root@NODE02:/tmp# df . Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda5 461490504 179502128 258545928 41%…
Marc Riera
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How do I get transparent, efficient, file system snapshotting or versioning on ext3/4?

I've long thought about versioning file systems. This is a killer feature and I've looked at Wayback, ext3cow, zfs, fuse solutions, or just cvs/svn/git overlays. I consider ext3cow the model for my requirements. Transparent, efficient, but I can do…
Dale Forester
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Best practices for choosing fs block size on ext3/4?

I never really pay block size much attention but obviously there can be benefits to choosing something other than the default. I am looking for a good "best practices" paper on choosing block size. Also, when used on top of LVM is it's performance…
CarpeNoctem
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Is the Ext3 filename limited to 255 symbols or 255 bytes?

I cannot save the file with the name containing more than 127 Cyrillic UTF-8 symbols on my Ext3 filesystem. It is possible so save the files containing up to 255 English UTF-8 symbols though. So is there a limit on a number of bytes containing the…
v_2e
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Resizing lvm2 logical volume and file system: Exact sizes?

On my intranet server, I have a 100.00 GiB partition /dev/sda5, which I use as a physical volume for lvm2. It's the only physical volume in my volume group vg01. vg01 currently contains one logical volume lv01, using the full 100.00 GiB - well,…
Chris Lercher
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DL380 G5, RAID5, ext3, RAID Failed

We have an old HP DL380G5 server, with 5 300GB SCSI 3.5'' disks in a RAID5 array, in an external bay, formatted as a logical volume with ext3 filesystem, that hosts 1.2 TB of sensitive clinical patients data. Two disks showed predictive failure in…
undernaut
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ext3 fsck time versus partition size

I'm doing the setup for a large-scale storage farm, and to avoid the need for month-long fscks, my plan is to split the storage into numerous smaller filesystems (this is fine, as I have a well-bucketed file tree, so I can easily have separate…
womble
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kernel: journal commit I/O error

I am having some problems with a Dell 1950 server. I am installing RHEL 4.6 along with Oracle and some other software on here. I am randomly getting an error message saying "kernel: journal commit I/O error" on my ssh session and on the monitor I…
jasondewitt
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