ext3 is the default file system for many Linux distributions.

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4answers
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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 (...
3
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3answers
114 views

How do you *tag* a partition as ext4?

I have an ext3 partition so when I do this: mount /dev/blah /mnt/blah it is mounted automatically as ext3. I can get it to mount as ext4 by running mount -t ext4 /dev/blah /mnt/blah and it works....
3
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2answers
314 views

Failed volumes on RAID - how to handle?

I've got a situation on a RAID that I've taken over responsibility for recently and really could use some advice. I hope I haven't mucked it up to much. A couple server on the ad-hoc cluster I'm ...
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2answers
681 views

Any chance to recover formatted hard drive LVM to ext3

I am a big fool. But i believe this could be the event for every serious linux administrator. I Accidentally formatted my hard drive from LVM to Ext3. I tried some of the recovery tools. I can see ...
1
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1answer
444 views

Why is kjournald extremely active on a mostly quiescent filesystem?

Note: This is a "documenting my process" question that I'll be writing an answer to. Happily, serverfault already helped me solve this, because writing up my situation so others would be able to ...
2
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1answer
284 views

SLES 11 recommended filesystem

We are upgrading some servers from SLES 10 to SLES 11 and I just saw that ext4 is not supported. Should I move to XFS or keep ext3? I will be moving the programs and databases to a new VM so ...
1
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1answer
290 views

LVM striping bottleneck

So, I have a server with a 3.5TB mysql database with innodb file for each table. It has 24 2.5" 10K HDs in 4 disk RAID 10 groups attached as 1TB datastores via vmware ESXi. All 6 are LVM striped into ...
1
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1answer
340 views

Recover ext3 files from hard disk with bad sector

I have a folder of about 5GB that suddenly disappeared. When I checked its hard disk, I found out it has bad sector for about 2-3MB on this folder. Maybe it is on the folder's pointer. The partition ...
0
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1answer
300 views

Debian - move partitions to a new drive

I have a XenServer6 VM with Debian Squeeze 64bit and only 1 partition /dev/xvda1 95 GB + linux partitions: Filesystem Size Used Avail Use% Mounted on /dev/xvda1 95G 63G ...
4
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1answer
1k views

rsync copies unmodified files between different file systems

I try to synchronize files between two machines using rsync, but it seems to copy all the files regardless file modification time. Two consecutive call of the command produces the same results, so it ...
1
vote
0answers
312 views

LVM failure recovery

We have an server PC with "intel matrix storage manager" raid (or maybe 'fake' raid) controller. Firstly there were one RAID-1 with two equal seagate disks of 1TB size. We've installed ubuntu server ...
7
votes
3answers
657 views

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 ...
0
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2answers
631 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. ...
8
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1answer
8k views

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: ...
17
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1answer
4k views

From bad sector to “damaged file” - did it for Linux/ext3, can I do it for Windows/NTFS?

When a SMART check on a disk reports a bad sector, it is important to be able to identify the file that has the bad sector - and restore it from backups. Below, I show how I did this for my Linux/ext3 ...
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votes
2answers
1k views

Copy past speed very slow for a large number of files on Windows

I've run the following test I've created a folder containing 15'000 files of 400 bytes using this batch : @ECHO off SET times=15000 FOR /L %%i IN (1,1,%times%) DO ( fsutil file createnew ...
3
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3answers
177 views

one 16K random read I/O issues 2 scsi I/O (16K and 4K) requests in linux

I noticed weird issue when benchmarking random read I/O for files in linux (2.6.18). The Benchmarking program is my own program and it simply keeps reading 16KB of a file from a random offset. I ...
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3answers
95 views

Will the data be deleted when resizing a partition [closed]

I'm planning to resize one of the server partition from 40GB to 1900GB. The current partition has files on it while the space to be added is unallocated. Will my existing files be deleted? Any help ...
4
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2answers
2k views

How can I track down the cause of ext3 filesystem corruption?

We have a VMware vSphere 5 environment running CentOS 5.8 virtual machines. In the past two weeks we have had five incidents of virtual machines having a filesytem become corrupt, requiring an fsck to ...
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1answer
9k views

RHEL - blocked FC remote port time out: saving binding

My Server went into a faulty state since the database could not write on the partition. I found out that the partition went into Read Only mode. Finally to fix it, I had to do a hard reboot. Linux 2....
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6answers
24k views
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3answers
506 views

Compact Flash mounted Read Only

I have a board, running linux (RedHat, kernel: 2.4.32). The board has been up and running since long time. However suddenly, some errors are being observed in the logs, and the Compact Flash (present ...
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 ...
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9answers
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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 ...
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1answer
2k views

Solaris support for ext4/ext3/btrfs

Does anyone know if Solaris 11 (Sparc version) supports mounting ext3/ext4 or even better Btrfs volumes ? Most of the topics I find on the web are quite outdated (2006/2007) and reference old ...
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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 ...
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11answers
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Filesystem large number of files in a single directory

OK, not so large but I need to use something where around 60,000 files with average size of 30kb are stored in a single directory (this is a requirement so can't simply break into sub-directories with ...
4
votes
1answer
2k views

Mounted filesystem / changed to read-only

This is how / should be mounted mount /dev/md0 on / type ext3 (rw,errors=remount-ro) but in fact, it is mounted read-only because of unknown reason so far for me. cat /proc/mounts /dev/md0 / ext3 ...
5
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5answers
15k views

Best file system for media server? [closed]

I need some advice on what file system to use for my new 1TB media server hosted on my Linux box. I have a few requirements: Needs to be shareable to a different Windows machine (not dual booting, ...
3
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2answers
893 views

Ext3 Stride/Stripe-Width Calculation for 3-Disk Software RAID1E

For reasons too complex to get into here, I'm using a 3-disk RAID1E on some linux systems. See here for more info on that. So my understanding is that for optimizing filesystem layout on this volume,...
4
votes
1answer
1k views

Online resize of large ext3 file system - is performance affected?

I am planning for a resize of a rather large file system hosting an Oracle instance (one of several on the same server). The disk is 4 TB striped over several LUNs, I'm increasing by 1 TB keeping the ...
3
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2answers
9k views

Does CentOS 5.x support ext4?

I believe the default OS file system in CentOS 5 is ext3. Is it possible to use ext4 on Centos 5.x, or only on 6.x? Can I upgrade an existing ext3 filesystem to ext4?
5
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1answer
2k views

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 ...
2
votes
3answers
4k views

How do I restore a partimage image to a smaller drive?

Without thinking, I made a partimage image of a ~1TB ext3 partition, which only actually contained about 2GB of data, so gzipped down to that size. I then wiped it and used it for something else. I'd ...
3
votes
3answers
2k views

Journaled filesystems and power failure

I heard that even a journaled filesystems such as EXT3/EXT4 might corrupted during power failure, e.g. from wikipedia [1]: In the event of a system crash or power failure, such file systems are ...
3
votes
5answers
2k views

How to recover deleted files on ext3 fs

I have a drive which was using the ext3 filesystem. I am told that about 10Gb of data was deleted off the drive (probably via rm). The drive is currently mounted as read-only to preserve all data. ...
5
votes
1answer
629 views

What exactly does the automated ext3 root file system check?

Recently we encountered a problem (bad blocks) with an ext3 formatted compact flash card running an embedded Linux system. On startup, the root file system check was started, but it seemed to hang ...
2
votes
2answers
2k views

MySQL InnoDB ext3 block size

I'm looking for recommendations for ext3 filesystem block size for MySQL 5.6 using InnoDB. Running a CentOS 5.4 VM in VMware ESXi 5, VMFS 5 datastore on NetApp FibreChannel LUNs (which have 4k chunk ...
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2answers
609 views

File system for a lot of small files

I'm using NetApp device as a NAS storage. I have a lot of small files (30-60k) and dirs. For example I have: 30000 dirs with another 1000-2000 dirs. A lot of dirs are empty, but most of them have ...
3
votes
1answer
999 views

Relatime vs noatime for flash drives

I am running a web server off of a SheevaPlug, and the OS and system are stored on an SD card with an ext3 file system. I know that atime is a major source of writes that wear out flash memory. ...
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votes
2answers
402 views

How can I “trick” an ext3 directory to store more than 32000 sub dirs

The easy answers are 1.) move to ext4 and/or 2.) "shard" the directory somehow - by placing them in sub folders either numbered or lettered. These changes won't be easy to make though so I'm looking ...
2
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2answers
155 views

Consolidate separate /var and swap drives back to / drive in CentOS

The genius that originally set up the web server at my company put the swap, /var, and / directories on different drive pairs. I need to some how consolidate all three into one drive for migration ...
2
votes
2answers
1k views

After using lvextend, I can't recover unused space

I needed to add more disk space to my CentOS VM, so I added another virtual disk, then used lvextend to add the space to the existing partition. The steps I followed was: echo "- - -" > /sys/...
-1
votes
1answer
216 views

format a volume as xfs

I have a partition that is formatted as ext3 I dd unmount it. Formatted as xfs (for quicker format) and I got an error. When I formatted it as ext3 again, it worked. What is the command to format an ...
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votes
2answers
625 views

Filesystem check on ext3, debian

How can I perform a filesystem check on ext3 partition on linux? I am looking for a solution that check every file on the filesystem that is it accessible. UPDATE: I would run it on a server without ...
2
votes
1answer
131 views

Recovering the remainder of an ext3 volume spread over multiple lvm physical volumes

I have an LVM logical volume spread over eight separate physical volumes on Amazon AWS. The logical volume is formatted using ext3. One of my physical volumes has failed. Is there any way to recover ...
0
votes
2answers
277 views

Asterisk using 100% of the cpu and freezing my debian host

I have a Debian host $ uname -a Linux voip 2.6.25-2-amd64 #1 SMP Mon Jul 14 11:05:23 UTC 2008 x86_64 GNU/Linux Old asterisk asterisk 1:1.4.21.2~dfsg-3 It has been ...
8
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4answers
7k views

Rsync -avzHP follows hardlinks instead of copying them as hardlinks

I use rsnapshot to create hourly/daily/weekly/monthly backups of my "work"-share. Now I'm trying to copy the whole backup-directory onto an external drive using rsync. I used this command/parameters ...
2
votes
2answers
109 views

What is the best structure to save incremental subfolders?

I have 3 different folders containing particular information about sales orders. Everything was working fine but a few days ago I started having an issue about the amount of subdirectories in each of ...
0
votes
1answer
158 views

Problems with degraded RAID arrays

My Ubuntu backup server was recently upgraded in storage space to a RAID 10 array... now it consists of 8T of raw drive space which was before 2T of space. But I have been having trouble when it ...