Questions tagged [ext3]
ext3 is the default file system for many Linux distributions.
282
questions
0
votes
1
answer
943
views
SAN Storage shared disk, files copied from other servers cannot be seen without re-mounting
I have a SAN Storage connected to my servers using fibre HBA. Using multipath, I've successfully mapped the device, formatted it as ext3, and mount it to my file system.
But the problem is, the host ...
- 129
4
votes
2
answers
7k
views
How to corrupt an ext3 partition so that it will undergo fsck to fix automatically at boot? [closed]
I'm looking for a way to corrupt an ext3 partition safely, so that it can be recovered by fsck on next boot, for testing purposes. Thanks!
- 83
-1
votes
1
answer
1k
views
Impossible to read / delete some files
How can I fix a message like this (read after a dmesg command)?
EXT4-fs error (device hdb1): ext4_lookup: deleted inode referenced: 119197
EXT4-fs error (device hdb1): ext4_free_inode: bit already ...
0
votes
1
answer
142
views
Migration from ext3 to Mogilefs
I have gigs of images on ext3 file system and I want to move them to Mogilefs on a live running site. In your opinion what would be the best approach?
- 145
0
votes
1
answer
173
views
Where do ext3 inode / meta-data reside?
Just a quick question about ext3:
Are inodes stored in the same area as file data, or are there separate regions on the disk reserved exclusively for meta-data and others reserved exclusively for ...
- 419
4
votes
3
answers
6k
views
Major issues with fsck of 10TB ext3 RAID 6 (memory allocation failed, etc.)
I recently added a 7th 2TB drive to a linux md software RAID 6 setup. After md finished reshaping the array from 6 to 7 drives (from 8 to 10TB), I was still able to mount the file system without ...
- 419
2
votes
1
answer
1k
views
ext4: Online resize not detected
On a RedHat 6 server, we ran into an issue with online resizing of an ext4 filesystem.
With only /dev/sda we had 13GB available in the volume group, but needed 20GB more on one logical volume which ...
- 382
0
votes
2
answers
1k
views
How to repair a disk on Ubuntu when fsck fails?
I was able to start a broken raid 1 system with one available and one broken disk by issuing the following command.
mdadm --assemble --force /dev/md9 /dev/sda1 /dev/sda2
I was able to copy the ...
- 402
1
vote
2
answers
6k
views
can i say "NO" to "Clone multiply-claimed blocks" in fsck?
I need to know if i can still mount the volume when i tell fsck "no" in that question.
i dont need to repair all the files in the volume, i just need recover one single file for this event.
the ...
- 271
7
votes
1
answer
2k
views
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: ...
- 1,398
1
vote
2
answers
857
views
ext3 converted to ext4 still being mounted as ext3
I have a somewhat bizzare problem at the moment with my Debian-system (mainly testing).
I used to have a root-partition on lvm that was formatted as ext3.
I now booted a live-system and converted ...
- 11
1
vote
1
answer
908
views
simple Linux alternative to Windows extpart to extend basic system disk without downtime?
On Windows there is Dell's extpart which allows one to extend a basic system disk (NTFS) of a running system without downtime. It looks like this:
C:\>extpart.exe
ExtPart - Utility to extend ...
- 1,490
1
vote
1
answer
2k
views
Hard disk error
There seems to be something wrong with my hard drive, but I'm not sure what, or how to proceed. The first sign of any problems was this:
I tried making a new directory on my server, but when I did so,...
- 111
2
votes
1
answer
904
views
Replacement raid1 drive is one block smaller. What to do?
Apparently once should always leave a bit of empty space at the end of each raid1 partition.
But if we're too late for that, what can be done if a replacement RAID1 drive is slightly smaller than the ...
- 561
1
vote
1
answer
823
views
EXT3 with no (write) cache
I want to mount an ext3 filesystem with no caching at all, most importantly no write caches since I want everything to be flushed to disk right away. Can anyone share the needed flags for such a ...
- 13
1
vote
0
answers
557
views
deleting files only frees space partially (ext3 / ext4)
I just did something similar to this:
$ du -sh /bigdata/stuff
1022G /bigdata/stuff
$ df -h /bigdata
Fileystem Size Used Avail Used% mounted on
/dev/sda5 1,8T 1,7T 140G 93% /bigdata
$ rm -...
- 111
1
vote
1
answer
82
views
Moved data from an ext4 volume to an ext3 volume and it is consuming more space, why?
Just need a simple answer, did some searching and couldn't find it. What is the metadata overhead with ext3 as compared to ext4? I migrated a number of volumes from a SAN that was using ext4 volumes ...
- 33
6
votes
3
answers
37k
views
How to recover data from a corrupted ext3 partition?
A server of mine had a drive failure of some sort which caused the OS (CentOS 5) to crash and stop working (it refuses to boot).
So we put another drive with a working OS and from there we try to ...
- 1,530
15
votes
2
answers
21k
views
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 ...
- 253
3
votes
3
answers
218
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. ...
- 7,508
3
votes
4
answers
842
views
If I upgrade an ext3 fs to ext4, will it automatically increase the maximum amount of directories per directory?
Due to an external unavoidable situation*, I need to have more than 32k directories in a directory (but as far as I can tell, less than 64k). I'm hitting the limit of ext3. I presume the original ...
- 7,508
3
votes
2
answers
504
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 ...
- 305
1
vote
1
answer
679
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 ...
- 7,493
3
votes
1
answer
446
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 ...
- 3,732
1
vote
1
answer
476
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 ...
- 698
0
votes
1
answer
550
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 ...
- 105
4
votes
1
answer
4k
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 ...
- 265
1
vote
0
answers
495
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 ...
- 111
-1
votes
2
answers
3k
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 ...
- 117
13
votes
2
answers
3k
views
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 ...
- 1,343
3
votes
3
answers
244
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 ...
- 31
0
votes
1
answer
200
views
Why would an ext3 filsystem be rolled back on a Debian VM running in VirtualBox after loss of power to the host
A Debian Virtual machine runs as a Guest VirtualBox VM. It's filesystem is EXT3. The host system loses power and after booting up the host system and guest VM, I find that the VM's filesystem has been ...
- 249
-1
votes
3
answers
1k
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 ...
- 15
4
votes
2
answers
3k
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 ...
- 254
7
votes
3
answers
959
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 ...
- 703
-1
votes
1
answer
13k
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....
- 11
1
vote
3
answers
995
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
votes
3
answers
3k
views
Unable to list contents/remove directory (linux ext3)
System is CentOS5 x86_64, completely up to date.
I've got a folder that can't be listed (ls just hangs, eating memory until it is killed). The directory size is nearly 500k:
root@server [/home/user/...
- 151
3
votes
1
answer
3k
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 ...
- 141
4
votes
1
answer
6k
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 ...
- 1,493
1
vote
1
answer
520
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 ...
- 141
2
votes
4
answers
2k
views
Shredding data on a live server
Which is the best way to shred all data from a live dedicated server?
I have no physical access nor any out of band remote management functionality to the server, only SSH access.
Server is running ...
- 471
3
votes
3
answers
9k
views
optimizing ext[234] for small file throughput
I have a system that has a high throughput of small files on disk, i.e. a huge number of small files are created, written and deleted within seconds.
Are there any reasonable ext2/ext3/ext4 mount ...
- 285
0
votes
2
answers
2k
views
Message: mkdir() [function.mkdir]: Too many links
We run a web application as a production. Some days ago I discovered the error signed in subject of this theme. I know what's the problem, but want to ask, what is right way for resolve this? Yes, we ...
- 690
3
votes
4
answers
341
views
Data consistency with RAID 5 and BBWC
I have a few questions about RAID 5, BBWC (Battery Backed Write Cache), filesystem (ext3) and optionally mysql.
I have a hypothesis and I ask Server Fault community to validate or not this one:
The ...
- 33
4
votes
1
answer
2k
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 ...
- 150
4
votes
3
answers
12k
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?
- 1,946
4
votes
3
answers
2k
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,...
- 386
7
votes
1
answer
3k
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 ...
- 249
5
votes
3
answers
5k
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 ...
- 6,041