0
votes
1answer
65 views

Resizing Partitions on Live RHEL/cPanel Server

I've resized many partitions over the years on Linux, Windows and Mac OS X -- but always using a GUI. However, the time has come where the preset partition sizes my data center placed on my server ...
0
votes
0answers
39 views

mke2fs.ext3 stripe-width option missing

I'm trying to set up an ext3 filesystem on a RAID 6 array (with 6 disks) on XenServer 6.2 linux. All the help I can find tells me to use the -E stride=xx,stripe-width=xx options. However my version ...
1
vote
1answer
80 views

Reclaiming Space That 'df' Says Should Be Available

I have a linux server hosted on one of Rackspace's CloudServers and it is showing that I have both no room available, yet also shows I have 12GB not used on the root partition. This server's only job ...
1
vote
1answer
49 views

ext3 mount options differ from linux kernel doc

I'm playing in my server lab with ext3 filesystem mount options, looking the kernel doc https://www.kernel.org/doc/Documentation/filesystems/ext3.txt I'm using redhat 5.8, if try to mount the fs ...
-1
votes
3answers
155 views

What happens if fsck.ext4 -y is run on a ext3 fs and how to I recover from it

I had a mountable fs (pretty sure it was ext3), fsck.ext4 was run with -y and ended in a segmentation fault. Now it is unmountable (dmesg says it's corrupt) and identifies as a ext4 fs via the "blkid" ...
3
votes
1answer
94 views

could fsck -Af -M cause corrupt filesystem?

Last night my server encounter "Read-only file system" error. So then I ran "fsck -Af -M" to trying to repair but no use, these are output: fsck 1.39 (29-May-2006) e2fsck 1.39 (29-May-2006) /: ...
0
votes
2answers
72 views

Program complains not enough disk space even if the disk space exists

I have an EXT3 partition mounted in ordered data mode. If a power failure occurs when a program is creating files on that partition, I see that space usage reported is normal and I don't see any ...
4
votes
1answer
264 views

“No space left on device” error when writing certain session filenames

I have some filenames (session files) that can't be written ("No space left on device"). Other filenames (same directory) are fine. Disk is not full. The filesystem is ext3 PHP is giving an error ...
-5
votes
2answers
341 views

How to convert lvm to ext3/4? [closed]

I have an old box(CentOS 5) that was formatted as lvm but now I want to convert it to ext3/4 file system without losing data. I have some empty disks that can be used, so is there an easy way to do ...
0
votes
1answer
195 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 ...
-1
votes
2answers
159 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!
3
votes
1answer
63 views

Multiple segmentation faults on Linux host

I have an old Slackware 9.0 mail server on a VM at Linode.com. It has around 130GB of mail hosted on it, in Maildir format on partitioned, separate Ext3 filesystems (largest one is 92GB). I'm in the ...
4
votes
2answers
976 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 ...
0
votes
2answers
1k 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 ...
1
vote
2answers
151 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 ...
0
votes
1answer
86 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
vote
1answer
431 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 ...
1
vote
1answer
136 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 ...
1
vote
1answer
46 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 ...
1
vote
3answers
6k 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 ...
-3
votes
2answers
548 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
votes
3answers
140 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 ...
-1
votes
3answers
90 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 ...
1
vote
3answers
244 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 ...
3
votes
3answers
717 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 ...
3
votes
1answer
984 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 ...
2
votes
2answers
5k 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?
3
votes
2answers
498 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 ...
0
votes
0answers
63 views

What causes newlines to be stripped when a buffer is flushed to a full ext3 partition?

We noticed this when we got disk full problems on our log partition. The resulting log files would have many lines concatenated together as if newlines were being stripped. A single line would be ...
3
votes
3answers
957 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 ...
2
votes
2answers
1k 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 ...
0
votes
2answers
422 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 ...
-2
votes
2answers
276 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
votes
2answers
796 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 "- - -" > ...
-1
votes
2answers
520 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
117 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
172 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 ...
5
votes
4answers
2k 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 ...
0
votes
3answers
561 views

How many subdirectories does the XFS filesystem support within a given directory?

EXT3 supports 32,000 subdirectories. EXT4 supports 64,000... I've read about people having millions of subdirectories on the XFS filesystem, but can't find an exact value referenced anywhere. How ...
10
votes
10answers
738 views

How does the number of subdirectories impact drive read / write performance on Linux?

I've got an EXT3 formatted drive on a Linux CentOS server. This is a web app data drive and contains a directory for every user account ( there are 25,000 users ). Each folder contains files that ...
2
votes
2answers
102 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
149 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 ...
0
votes
0answers
163 views

recovering a deleted file from a VM snapshot?

Our mysql ibdata1 file was deleted earlier today. This wasn't noticed until mysqld was restarted and there was no data in the tables. The machine is a CentOs VM in Xenserver. At this point a ...
2
votes
3answers
300 views

Recover data from EXT3 filesystem

Our junior sysadmin accidently deleted some of the directories. Can anyone please suggest any free/proprietary application to recover files from an EXT3 filesystem (RHEL 5.x) ?
1
vote
1answer
181 views

“hot swapping” linux md raid1 - does re-mounting file-system temporarily read-only enable safe disconnection?

There's is an ext3 filesystem on top of Linux md raid1, array consists of two hard drives. Various services, including databases run on and write to it. Let's say for argument's sake that to minimize ...
2
votes
2answers
135 views

Storing 64000+ files and growing in one folder (ext3)

I'm using a directory as a staging area for my files before shipping them to Amazon S3 buckets. This staging directory has no sub-directory structure /a/b/c or /year/month/day ... it's only files ...
5
votes
2answers
144 views

Slower/cached Linux file system required

I know it sounds odd but I need a slower or cached filesystem. I have a lot of firewalls that are syslog'ing their data to a pair of Linux VMs which write these files to their 'local' (actually FC ...
2
votes
2answers
3k views

Server Frequently gets Read-Only File System

This server has RAID-1 configured. It get readonly file system everyday. if i reboot it, it gets back with a read-write file system. but after a short while, readonly again... Any idea please? ...
5
votes
3answers
2k views

Convert a software raid volume from ext3 to ext4 (or ext2)?

I have an mdadm created software raid volume in my ubuntu linux 11 machine. It is NOT the boot drive. It is a software raid 5 configuration made from 3 large sata drives. When I created it ...
8
votes
1answer
4k 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: ...