ext3 is the default file system for many Linux distributions.

learn more… | top users | synonyms

0
votes
4answers
2k 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
375 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 # ...
5
votes
4answers
2k 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
800 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
votes
1answer
138 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
270 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
votes
1answer
210 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
votes
4answers
700 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 ...
6
votes
2answers
12k 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
votes
2answers
495 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
votes
1answer
237 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 ...
4
votes
2answers
2k 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
1k 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
votes
3answers
580 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 ...
1
vote
2answers
217 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 ...
2
votes
1answer
655 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
568 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
229 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
336 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
1k 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
votes
3answers
854 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 ...
51
votes
21answers
15k 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
2k 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
votes
1answer
440 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
530 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
1k 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 ...
1
vote
3answers
177 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 ...
1
vote
1answer
1k 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
947 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
824 views

How to copy directories using debugfs?

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 ...
2
votes
1answer
668 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
144 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 ...
2
votes
1answer
2k views

Do large folder sizes slow down IO performance?

We have a Linux server process that writes a few thousand files to a directory, deletes the files, and then writes a few thousand more files to the same directory without deleting the directory. What ...
2
votes
2answers
2k views

how can i move ext3 partition to the beginning of drive without losing data?

I have a 500GB external drive. It had two partitions, each around 250GB. I removed the first partition. I'd like to move the 2nd to the left, so it consumes 100% of the drive. How can this be ...
2
votes
3answers
1k views

Surprising corruption and never-ending fsck after resizing a filesystem

System in question has Debian Lenny installed, running a 2.6.27.38 kernel. System has 16Gb memory, and 8x1Tb drives running behind a 3Ware RAID card. The storage is managed via LVM, and is ...
1
vote
3answers
597 views

Disabling “symlink follow” feature on Ext3/4 mount points

How can I disable the symlink feature of ext3 file system mount point ? My server is being attacked by some sort of symbolic link hacking methods for reading other user's home directory. There is such ...
2
votes
2answers
1k views

Can I use ext3 as a shared fs if I add a lock manager?

I need a cluster filesystem for an iSCSI device. The problem is that the servers to which it is connected generate datafiles which must be read by every other servers. Except for the writing and ...
18
votes
9answers
15k views

Maximum number of files in one ext3 directory while still getting acceptable performance?

I have an application writing to an ext3 directory which over time has grown to roughly three million files. Needless to say, reading the file listing of this directory is unbearably slow. I don't ...
1
vote
1answer
1k views

filesystem mounting problem

A DAS box is attached to my linux box using LSI SCSI HBA. Volume is properly detected on the linux box and filesystem is created using mkfs.ext3 /dev/sdc #No partition table I can not mount ...
21
votes
10answers
18k views

How to make `rm` faster on ext3/linux?

I have ext3 filesystem mounted with default options. On it I have some ~ 100GB files. Removal of any of such files takes long time (8 minutes) and causes a lot of io traffic, which increases load on ...
3
votes
3answers
773 views

Immutable hard links on ext3/4?

In my research on file versioning at the fs level, snapshotting, and related ideas, I took a look at hard-links and exactly what they are and how they behave. Using rsync you can get a pretty slick ...
6
votes
5answers
1k views

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 ...
12
votes
8answers
48k views

How do you re-mount an ext3 fs readwrite after it gets mounted readonly from a disk error?

Its a relatively common problem when something goes wrong in a SAN for ext3 to detect the disk write errors and remount the filesystem read-only. Thats all well and good, only when the SAN is fixed ...
0
votes
4answers
348 views

Log file is missing, how can I see that and what happened to it

A process identified by process id 2147 is running, but its logfile is nowhere to be found. The filesystem is ext3 and 100MB of space remains. nothing went wrong in process 2147. An lsof of process ...
4
votes
2answers
559 views

Pass Column of fstab

If I have the 6th column in fstab (the pass column) set to 0, does that mean checks will never be forced at boot regardless of anything like File System State, Mount Count, and Check Interval on the ...
17
votes
3answers
15k views

How do you get e2fsck to show progress information?

I'm running e2fsk on a very large (1TB+) ext3 disk with e2fsck -v /dev/sda1 from RIPLinux booted with PXE. I get e2fsck 1.41.6 (30-May-2009) /dev/sda1 contains a file system with errors, check ...
2
votes
2answers
778 views

Trying to grok Linux quotas, where is the data stored?

So all the tutorials and documentation for the Linux quota system has left me confused. For each filesystem with quotas enabled/on where is the actual quota information stored? Is it filesystem ...
7
votes
1answer
2k views

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. ...
3
votes
2answers
1k views

What are the merits of ext3 over ext4?

Specifically want to use the storage for music/video files but with a smattering of usual doc/xls/etc) - wondering if there is a concrete reason to go for one over the other. Thanks
1
vote
3answers
280 views

ext3 slowing down on writes on linux 2.6.18

i'm running into a problem where writing to a file will cause a 5 to 15 second pause, this occurs only on writes. So far i have remounted the filesystem with data=writeback as an option, and set ...