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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.

282 questions
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Are there any invalid characters for an ext3 filename?

Which characters are invalid for an ext3 filename? I imagine that at least / is an invalid character and probably \0. Is there an official list somewhere? I'm not exactly sure where to look for this information, so please tell me where you found…
User1
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Can Btrfs use SSD for metadata and leave bulk data on HDD?

is it possible for Btrfs to use SSD for metadata only & leave bulk data on less costly storage such as HDD? I refered to this page Using_Btrfs_with_Multiple_Devices and can not find a solution. Thanks!
zJay
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ext3_dx_add_entry: Directory index full

Background: I'm running lighttpd 1.4.28-1 on CentOS 5.3 to serve the static assets. Signal: recently, it gets slow sometimes. I'm getting the below errors in the kernel log and /var/log/messages: proftpd[5145]: (::ffff:xx[::ffff:xx]) - FTP session…
quanta
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find file by block number on ext3 fs on lvm

smartd has detected a bad block on my hard drive and I'd like to know what file does that block belong to. I have ext3 filesystem on a logical volume. Google gave me a lot of tutorials (like this one: http://www.vanderzee.org/bad_blocks_howto) of…
facha
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7
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3 answers

DRBD configuration

I was going through the configuration of DRBD on two nodes. The DRBD has already configured, but I would like to enable the dual primary mode feature. On drbd site I have seen that it requires the use of a shared cluster file system that utilizes a…
karthick
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Why is ext3 so slow to delete large files?

I have a server, which makes an incremental backup of a system every night. Now on saturdays, there is a full backup. But after the full backup has finished, a script kicks in, that deletes the incrementals. Now, the script sometimes breaks, and it…
Janis Peisenieks
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CentOS disable filesystem check: superblock last mount time is in the future

I'm persistently getting the "Superblock last mount time is in the future" error when booting CentOS 6. I've seen other questions which ask how to resolve this error, but I know exactly why it's occurring: our development/testing VMs regularly have…
Zac B
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7
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Apache's htcacheclean doesn't scale: How to tame a huge Apache disk_cache?

We have an Apache setup with a huge disk_cache (>500.000 entries, >50 GB disk space used). The cache grows by 16 GB every day. My problem is that the cache seems to be growing nearly as fast as it's possible to remove files and directories from the…
flight
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3 answers

Convert an ext4 partition to ext3 without formatting the HDD

I would like to convert an ext4 partition to ext3 partition without formatting the HDD. Is this possible and recommended?
Max
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How do I force ext3 partition to the "error" state?

I have a script where fsck is called in case filesystem is in "error" state only. I'd like to tests it. Unfortunatelly I don't know how to force "error" state on ext3 partition. The only one idea I have is run fsck on mounted partition first. AS…
user822834
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ext3 file system performance tuning: what metrics to monitor

I have a high-IO application that is working, and scaling well to date. Over the past few months we've been trying to look down the road and predict where our next bottlenecks will occur. One of them is surely the file system. We are currently…
Stu Thompson
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Filesystem performance tuning options for ext3

I have a brand new server w/48G RAM which I am going to use as a DB server. I don't expect problems with disk reads, but I definitely would like to optimize for write intensive load patterns. The OS is RHEL 5.6 and the FS is ext3, I've added…
Alex
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Easiest way to corrupt ext3 file system (for testing)?

I need to corrupt ext3 file system (for testing purposes) to some repairable state. How that can be done?
Egor Makarov
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4 answers

Huge directory, not files inside, but directory itself

I have been trying to delete a directory from a centos server using rm -Rf /root/FFDC for the past 15 hours and am having great difficulty. I can't do a directory listing because it hangs the system (too many files?) but what I can see is that the…
James
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How to fsck.ext3 a TrueCrypt Volume?

I have a truecrypt file that contains an ext3 file system. Not sure exactly how to word this, but is there a way I can mount the truecrypt volume without actually mounting the filesystem within it so I can attempt to repair it with fsck? So I have…
Kyle Brandt
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