ext3 is the default file system for many Linux distributions.

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3answers
5k views

Ext3 Keeps getting Journal Error and Becoming Read-Only

I have a RHEL5.5 x86_64 server with 2 HBA connecting to EMC and HP storage arrays. EMC PowerPath is installed because my EMC vendor insists on that. My problem is the volumes on HP storage often ...
0
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1answer
724 views

Joomla Editor not working after restoring mysql database

I've made a big mistake on one of my sites and I've deleted accidentally several files from our site's joomla directory. The database was Ok, so what I tried to do was to create a Joomla installation ...
0
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1answer
2k views

Problem fixing ext3 root file system using fsck on CentOS 5

When I run a read-only fsck on the mounted root partition of a CentOS 5 server, it finds a number of errors. However, running a forced check upon next boot does not find any! Here are the results of ...
3
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1answer
2k views

Disabling journal on a mounted ext3

I'm shredding files on large ext3 file systems (e.g. see this article for how I do this). In order to achieve this I need to mount the ext3 file systems without journaling. To most of them I get by ...
5
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3answers
133 views

directories with two one dot (.) entries

I'm trying to clean up my lost and found, and I've managed to remove most things, but I'm left with "almost" empty directories, like: lost+found/#14042862: total 1324 dr---wx--- 2 76040 43010 ...
0
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1answer
3k views

How to increase filename size limit on EXT3 (on ubuntu)

The default limit of how long a filename can be on EXT3 is 255 characters. I have a unique requirement where I need much longer filenames (apparently because mod_rewrite of apache uses filenames for ...
3
votes
4answers
703 views

Speeding up creation of large ext3 filesystem on CentOS 5

We are creating a large backup ext3 partition on 16TB RAID array and the mke2fs took 2.5 hours to complete. Are there any known tricks we can use to shorten this time? The aim is to lower the time ...
1
vote
1answer
317 views

pvcreate on a ext3 partition, is it dangerous?

I know pvcreate a LVM physical volume usually on a LVM partition, but I do a pvcreate on a empty ext3 partition accidentally, is this dangerous, do I really need to repartition with LVM format on the ...
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7answers
6k views

Good filesystem for 20TB hardware-controlled RAID5 array?

What's the best file system for Ubuntu 10.10 assuming the average filesize is 8-30GB with no more than 1-2 users accessing the array at any given time?
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3answers
106 views

ext3 Journalling

Does only the metadata get journalled in ext3 or does the data get journalled too?
1
vote
1answer
250 views

How to change switch to a different root partition

I am using AWS EC2 instance with Ubuntu 10.04 installed on it. I start with the instace which has its root partition at /dev/sda1. Later I want to attch a new EBS volume at /dev/sdb1 and want to get ...
1
vote
2answers
211 views

Howto maintain an EXT3 filesystem

Lately I had several servers which encountered a write error on an EXT3 filesystem and as a result of that remounted the filesystem read-only. Understandably on a production server this causes severe ...
2
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1answer
525 views

Why does my external USB hard drive refuse to unmount after transferring large tar files to it?

I recently need to transfer large tar files to an external USB hard drive from one Red Hat ES 5 server to another (neither with network connectivity). Originally I was trying to move ~90gig tar file ...
2
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2answers
2k views

Recover deleted files in linux , can debugfs command solve my purpose?

I am trying to list deleted files from my ext3 file system. debugsfs command with -ld option , suppose to list deleted files but it only listing current existing files and folder. Is any alternate way ...
1
vote
2answers
993 views

How do I improve my incremental-backup performance?

I'm currently using the traditional rsync+cp -al method to create incremental/snapshot backups of our server tree. The backups are going onto a pair of eight-disk towers connected to the backup ...
1
vote
1answer
798 views

How to investigate frequent but dissimilar data-loss events

I have a Xen domU provided by a third party, running Ubuntu (10.04, server edition, stock -server kernel). This server runs Dovecot and Exim4, with mail stored in Maildirs, and runs a fairly typical ...
6
votes
4answers
40k views

mount: cannot remount block device /dev/sda5 read-write, is write-protected

So, this is it. Everything is working as usual except the disk is read only and dont want to change back. ^_^! thanks. root@NODE02:/tmp# df . Filesystem 1K-blocks Used Available Use% ...
2
votes
1answer
934 views

25TiB for /home from 16TiB, what to do with ext3?

I have recently lvextend my logical volume (where /home is) from 16TiB to 25TiB. However, when I try to run extend2fs on my /dev/vtrak/home, it complains that resize2fs 1.41.12 (17-May-2010) ...
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4answers
3k views

mirroring linux server to external usb harddrive

My google-fu must be sucking. i havent been able to find a good solution for the following: numerous Linux server on commodity hardware Trying to do a recovery mirror copy to external harddrives ...
3
votes
1answer
566 views

rsync -a doesn't copy ext3 attributes

I just stumbled upon the fact that rsync doesn't preserve at least the ext3 "immutable" flag - while it should do so when using -a, IMHO. Quick test case: # touch testfile # chattr +i testfile # ...
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4answers
3k views

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?
3
votes
3answers
867 views

How to recover this Linux partition?

I have this netbook, where the partition table looks like this ~$ fdisk netbook.dd Warning: invalid flag 0x0000 of partition table 5 will be corrected by w(rite) Command (m for help): p Disk ...
0
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1answer
142 views

HDD Partitionning on a live system under Debian and ext3

I have my server running under Debian using ext3. All the whole root is into a single main partition on a single hard drive. I would like to create a second ext3 partition on the same hard drive. So ...
3
votes
1answer
395 views

How to determine how many times an ext3 file system has been mounted

A few months ago I created an ext3 file system on one of my partitions. I received the following message: "mkfs.ext3 /dev/sddx; system will be checked every 20 mounts or 180 days; use tune2fs -c or -...
0
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1answer
214 views

Unmounted root partition

My server running Debian lenny has just had a power cut recently and its come back up with the root partition in read only mode. I tried to remount the filesystem in read write mode with mount -n -o ...
0
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4answers
773 views

directory with 980MB meta data, millions of files, how to delete it? (ext3) [duplicate]

Possible Duplicate: rm on a directory with millions of files Hello, So I'm stuck with this directory: drwxrwxrwx 2 dan users 980M 2010-12-22 18:38 sessions2 The directories contents is ...
12
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3answers
22k views

How long should resize2fs take on a 1TB partition?

I've got a new computer at the university and almost set up everything for myself on it when I've noticed that the previous user of the machine used a huge 1TB ext3 partition only. I usually keep /...
0
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2answers
630 views

Can't Mount Remote Share From RHEL 6

I'm trying to upgrade some Linux systems to RHEL 6, but I cannot mount the home directories. I'm using EXT4 for the RHEL 6 system and EXT3 on the RHEL 5 server, which I'm mounting the directory from. ...
0
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1answer
265 views

openiscsi initiator shared ext3 disk

i have an iscsi target disk with only one ext3 partition on opensolaris using comstar i also have two ubuntu instances with openiscsi initators that connect to that disk both instances have this ...
5
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2answers
3k views

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 ...
0
votes
3answers
2k views

Repair ext3 partition on external disk from Ubuntu 10.10

Currently, what is the best way or tool to repair an ext3 partition? There used to be fsck, but the disk is an external USB, and using the latest Ubuntu 10.10, I wondered if there might be a new tool ...
0
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3answers
621 views

ext3 optimization for 3D design /modelign (Maya 2011) in Centos 5.4 x64

Today i have been partitioning a 1TB hard disk where i want to install tomorrow Centos 5.4  x64 for use for 3D modelling,with Maya 2011. I created a 10 GB swap ( 8GB ran + 2) a 620 gb  partition for ...
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2answers
255 views

Cyclical / rhythmic disk I/O statistics: (activity increasing monotonically)

I have got a unique problem with one of my servers. The disk I/O statistic is consistently increasing for last couple of weeks. See this graph from Munin: From Linode's dashboard, I see a more fine-...
2
votes
1answer
739 views

e2fsck aborts: memory allocation failed

I am trying to fix a 9 TB filesystem with e2fsck, however the scan always fails after about 10% or so with the following error: Error storing directory block information: ... Memory allocation failed ...
1
vote
1answer
861 views

Silent e2fsck - safe to stop?

Before a grow on a 8 TB RAID5, I am currently doing an e2fsck. While the RAID was running w/o issues before (I switched from Ubuntu to CentOS 5.4 because I needed a specific hardware driver), the ...
1
vote
1answer
246 views

Expanded 8TB RAID5 in mdadm only showing 3.5TB available

I had 3, 2TB disks in a RAID5 that I expanded to a 5, 2TB RAID5 (details here). This all went fine but when I went to the folder I have array mounted to (/var/media), it only show 3.5TB of space ...
1
vote
2answers
362 views

Can I make an ext3 filesystem recognize (and use) the entire partition?

Using gparted and partimage from SysRescCD I recently made a backup image of the partition containing my Ubuntu installation, deleted all partitions except for the original Windows partitions ...
2
votes
1answer
2k views

Is it possible to enable online resizing after the fs was created?

I have an Ext3 filesystem sitting on an LVM volume group. The partition was formatted before online resizing was enabled by default. Is it possible to turn this feature on after the fact, like ...
0
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3answers
1k views

bash: loop over 20000 files slow - why?

A simple loop over a lot of files is half as fast on one system vs. the other. using bash, I did something like for * in ./ do something here done Using "time" I was able to confirm, that on ...
72
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23answers
27k views

rm on a directory with millions of files

Background: physical server, about two years old, 7200-RPM SATA drives connected to a 3Ware RAID card, ext3 FS mounted noatime and data=ordered, not under crazy load, kernel 2.6.18-92.1.22.el5, uptime ...
0
votes
1answer
3k views

Resizing ext2/3 partitions (including /usr) on a live system

I'm building a system with fairly limited disk space that will use LVM, and I'd like to be able to resize the partitions as freely as possible without bringing the system down. In particular, I'd ...
0
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1answer
452 views

USB drive only for Linux backups: To partition or not to partition?

I have a 2TB USB drive plugged into CentOS 5.5 that will be formatted with ext3 and will only be used for file-level backups. I've always partitioned my drives but a while ago when I had setup Amazon ...
2
votes
4answers
1k views

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 (...
2
votes
2answers
2k views

Questions for Ext3/4 Features ( dir_index,filetype) and XFS File system Performance

I am developing an applications which reads huge list of directories and check file types using file command and using ext4 file system. When i look into Ext4 , i see it have two interesting features ...
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2answers
184 views

Join files effectively on Linux

Is there a better way to join files that have been splitted than just doing a "cat" or "join"? These commands just copy the file streams into a new file on disk. A much better way would be ...
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1answer
2k views

Disk space not freed on ext3/raid1 after deleting

I have two 120 GB disks in a software raid1 array (i.e. mirrored), showing as /dev/md2. There's an ext3 filesystem on top of this, mounted at /. # uname -a Linux svnserv 2.6.26-2-amd64 #1 SMP Sun Jun ...
0
votes
1answer
1k views

LVM+Ext3 - recover the ext3 partition?

I setup a new email server today and I did lvm for the main drive and then LVM for /opt. I realized I did not give myself enough room for /opt so I decided to try and extend it and I must of screwed ...
2
votes
2answers
1k views

How to copy directories using debugfs? [duplicate]

The debugfs manpage gives the impression that the command 'rdump . .' will recursively copy all files found on the specified filesystem from the debugfs cwd to the native filesystem's cwd. Instead I ...
3
votes
1answer
764 views

Postfix spool on ext3 optimiziations in >=linux-2.6.34 days

Given the very specific nature of the subject (we're not talking about mailboxes, just the spool; we're not talking about other filesystems, just ext3; and so on...) and the maturity of the softwares ...
3
votes
3answers
148 views

Testing for disk write

I'm writing an application for storing lots of images (size <5MB) on an ext3 filesystem, this is what I have for now. After some searching here on serverfault I have decided for a structure of ...