ext3 is the default file system for many Linux distributions.
0
votes
1answer
333 views
Cisco Linksys WRT160NL: How can I use an /ext3 formatted external disk for Storage Link?
I've got a Cisco / Linksys WRT160NL wireless router that supports an external USB hard drive for NAS. I'd like to use a drive I have that's formatted for /ext3.
Is this possible? The Format routine ...
1
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3answers
87 views
1
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1answer
204 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
189 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
votes
1answer
399 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 ...
0
votes
2answers
737 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 ...
2
votes
1answer
776 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)
...
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
268 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
# ...
4
votes
4answers
1k 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
1answer
208 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
197 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 ...
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4answers
609 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 ...
0
votes
1answer
214 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 ...
0
votes
3answers
541 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 ...
0
votes
1answer
845 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 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 ...
1
vote
1answer
458 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 ...
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
1answer
216 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
315 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
795 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
682 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 ...
0
votes
1answer
1k 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
420 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
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
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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 ...
2
votes
1answer
597 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
139 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
1k 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 ...
1
vote
3answers
251 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 ...
1
vote
1answer
638 views
Mimic NTFS “Modify” Permissions on an ext3 acl enabled filesystem in linux?
I am migrating our file share from Windows Server to Samba on Linux, and the only hurdle I have at the moment is the acl's.
Currently we have a number of directories that use the "Modify" permission ...
7
votes
4answers
15k views
kernel: journal commit I/O error
I am having some problems with a Dell 1950 server. I am installing RHEL 4.6 along with Oracle and some other software on here.
I am randomly getting an error message saying "kernel: journal commit ...
2
votes
2answers
613 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 ...
1
vote
3answers
489 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 ...
1
vote
2answers
1k views
Change EXT3 stride and stripe-width settings post-install on CentOS 5.3
Is there a way to change the stride and stripe-width options on an ext3 file system under CentOS/RHEL 5.3? There's no way to specify it via anaconda during installation that I saw, and while I see ...
1
vote
2answers
814 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 ...
2
votes
1answer
737 views
maildir in Windows for IMAP
I'm interested in accessing my IMAP accounts offline. I found that maildirs are a simple way to make it work. I found that [offlineimap] takes care of almost everything in making the IMAP->maildir ...
1
vote
1answer
747 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 ...
3
votes
3answers
706 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 ...
4
votes
2answers
521 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 ...
5
votes
1answer
1k 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
0
votes
2answers
2k views
Debian - resize root ext3 partition on remote system
Hello
I want to resize (shrink) root ext3 fs partition of remote Debian 5.0 system. There is no LVM.
Is it possible without using a livecd? E.g. via custom initrd.img.
And second problem - Can I ...
3
votes
1answer
186 views
Accidentally overwrote first 400MB of hard drive with ext3 partition - possible to rescue?
Accidentally wrote /dev/zero to the first 371MB of a 500GB disk. Is it possible to rebuild the partition table and/or recover what data hasn't been overwritten?
1
vote
1answer
1k views
Debian Lenny - SAN - LVM Fail
I've got a Lenny server that has got a SAN connection configured as the only PV for a VG named 'datavg'.
Yesterday, I've updated the box with Debian patches and gave it a reboot.
After the reboot, ...
4
votes
1answer
988 views
Folder size is greater than 4K on ext3
Lets say we have a default formatted ext3 filesystem, I run under the assumption that folders take 4K of space on the disk.
But, what does it mean when a folder is bigger than 4K?
Here is a pic of ...
1
vote
2answers
710 views
How can I minimise the size of an ext3 partition (and its LVM logical volume)?
I am using LVM on Ubuntu 9.10 (Karmic). I have a single LVM physical volume (and a single volume group).
I have an ext3 filesystem inside an LVM logical volume which I no longer use, but for the time ...
0
votes
2answers
158 views
EXT3: What disk checks should be run after a hard reboot or power failure?
In the event that a hard reboot is performed or a system loses power without a proper shutdown, what checks should be run to verify file-system/data integrity on ext3 partitions?
I've heard of fsck, ...
1
vote
2answers
722 views
how to mount an ext3 filesystem with a smaller blocksize then device blocksize?
I had an ext3 filesystem on my hard disk at /dev/hdc2 with a small 1024 byte blocksize. Now I recorded the whole filesystem on a DVD like this:
dd if=/dev/hdc2 of=/tmp/image.img
wodim -dev=/dev/scd0 ...
