A file system (or filesystem) is a means to organize data expected to be retained after a program terminates by providing procedures to store, retrieve and update data, as well as manage the available space on the device(s) which contain it.

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LVM system space is not consistent

I have found some problem in my server, here it is: df -H | columt -t Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_test-lv_home 212G 177G 25G 88% ...
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1answer
70 views

Mount a iscsi target volume natively

I have a LVM logic volumn exported though iscsi and formatted by the client to ext4. Now that machine serving the iscsi target went down and I'm wondering if I can just take the hard disk out to ...
2
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1answer
621 views

What are the side effects of a full root partition?

I have a mission critical server running that I cannot take down (or at least, I'm told I can't right now). It unfortunately filled it's root partition up. It's running a custom process that's ...
2
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2answers
235 views

How to rename junction without breaking link

If I rename a folder which is the target of a (or multiple) junction, is there any way to update all the junctions to point to the renammed folder instead of just breaking?
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0answers
61 views

Prevent mountpoint from being remounted read-write

Is it possible to force a filesystem to be read-only, unable to be remounted (even by root) as RW? It is not necessary that the mounted volume be recoverable after reboot. One way I have experimented ...
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2answers
381 views

Why don't linux distributions default to mounting tmpfs with infinite inodes?

According to this answer it is possible to mount at least tmpfs with "infinite" inodes. Consider this specific (numbers chosen for example purposes, I know that they're not realistic) situation: ...
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1answer
326 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 ...
2
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1answer
170 views

How to grant somebody “Take ownership” privilege?

I have a Windows 2008 R2 machine. My machine itself is not a domain controller but is joined to a domain. In Local Security Policy, under Security Settings > Local Policies > User Rights ...
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0answers
245 views

Slow network file access on windows 2008

We have a really poor business application that uses access databases (I know, fail!) as its back end. There are lots of access db files it uses, all about 4mb in size. If I copy the files locally ...
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1answer
112 views

Add new partition to Centos hard drive

My hard drive currently has (I believe) 2 partition; boot (sda1) and everything else (sda2?). Some of the hard drive is also being used as swap memory, but I don't really understand how that effects ...
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1answer
275 views

rsync copying entire files instead of difference

I have 2 remote folder containing few files. I am using rsync to sync the 2. The thing is that on the first server files are strictly just APPENDED with new data every day. When I call rsync it seems ...
2
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4answers
121 views

fsck and disk integrity checks for Linux systems that are rarely rebooted

Like most Linux systems, my systems rarely need to be rebooted ( if ever). How do you handle disk integrity checks and filesystem maintenance if you don't reboot? Do you schedule periodic reboots ...
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1answer
79 views

Change partition type of a directory

OLD POST. IGNORE If my root / is ext4, how do I change /some/other/directory to ext3? Assuming this is possible, please explain how a directory of one type can exist in a directory of another type. ...
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1answer
904 views

Is there any way to fix a corrupted LDM database?

TL;DR: Are there any tools/approaches to diagnosing and fixing LDM (Logical Disk Manager) metadata structures without recreating from scratch? Full description: I have two SSD drives ...
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1answer
70 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 ...
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1answer
133 views

Where are filesystem full event logged?

I forced a filesystem to be 100% full. I am able to generate a message to STDOUT: # dd if=/dev/urandom of=reallylargefile count=2097152 dd: writing to `reallylargefile': No space left on device ...
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4answers
4k views

UNEXPECTED INCONSITENCY run fsck manually redhat

I erroneously restarted my server before completing a filesystem resize. Here's the command that ran successfully before restarting: lvresize -L -400GB /dev/mapper/vg_yavin-lv_home At boot, I get ...
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1answer
611 views

file system is going into read only mode frequently

My server file system is going into read only mode frequently. If I reboot my system, It is performing a fsck operation on disks. But, It is exited with exit status 4 ( File system errors left ...
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1answer
120 views

ext2 to ext4: Convert/upgrade or create new

We have a filesystem, on LVM, created as ext2 - and in daily use running 8-10 webservers (software, tempfiles, logfiles). The discs are "local" to the OS, but are really SAN disks provided to the ...
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1answer
319 views

Online resize of ext2 - Bug?

An ext2 filesystem can be resized - as long as the underlying block device can be resized - but not ONLINE. However, as another posting of mine has showed, if the ext2 filesystem is mounted as ext4 ...
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0answers
92 views

In linux and solaris, what is the UUID based off of?

If you run dmidecode|grep UUID you are given a "globally unique string of characters" which can be used for licensing purposes. In linux, the format is usually something like this: ...
3
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1answer
59 views

How can I list all accessed files on process startup

I have a process that fails on startup due to some permission issues. I want to check what files it tries to open on startup but with lsof I can list only opened files for a running process but what ...
2
votes
3answers
2k views

AUFS missing in Redhat Fedora, is there an alternative way of stacking directories?

I can't find Aufs in Redhat's Fedora, or any other stackable filesystem for that matter. It seems this is due to relabelling limitations of SELinux. Is there a way to achieve similar without ...
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2answers
131 views

Fedora. Remove file containing dollar sign

Cannot remove a file nor a directory containing it. output of ls -la: -????????? ? ? ? ? ? 1221036243.V905I191359M574755.domain.com:2$ UPDATE 1 [root@domain ...
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2answers
613 views

What does zfs receive -F do?

When I read man zfs for zfs receive I see -F Force a rollback of the file system to the most recent snap- shot before performing the receive operation. If receiving an ...
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1answer
28 views

delete empty file link

I accidently made a link and can't delete that: big:~# ls -al total 88 lrwxrwxrwx 1 root root 27 May 28 18:10 -> /etc/apache2/ssl/apache.pem drwx------ 8 root root 4096 May 29 01:45 . ...
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0answers
94 views

Cant remove linux ln hard links

I am using CentOS 6.3 and am logged in a root. When I create a hard link by doing this: ln /root.hdd /somedir/root.hdd That works fine, the inode shows the same between the two files and ...
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0answers
66 views

Dynamically allocating limited disk space per user on NTFS

I'm designing a module that needs to allocate dynamic, limited disk space per user. Based on a large NTFS filesystem, I want each user to tell me how much space he want's extended to him, and then ...
4
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2answers
196 views

Opening an archived “Application Event Log” (Hidden Directory)

I'm an admin on the box. I've turned off all the folder options "Hide protected operating system files" and turned on "Show hidden files and folders". I can see this folder in Windows Explorer: ...
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1answer
144 views

Installing RHEL on a single disk with ZFS

I know ZFS is usually used for numerous reasons including it's amazing mirroring features. However in this instance the machine I've been tasked with setting up has a RAID-1 setup so I only have one ...
2
votes
2answers
201 views

A same file displays different time stamp and permissions between local file system and NFS

I created a nfs share entry mzhu@zeus:/share$ cat /etc/exports /share *(rw,async,insecure) From the local file system, execute 'ls -al' in /share. The output is mzhu@zeus:/share$ ls -al total 20 ...
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1answer
535 views

Vmware Tools potentially locking files/folders on Windows Server

I have a Windows 2008 R2 X64 server running on Vmware ESXi. Originally it was running on Hyper-V, but I have since converted the VHD to a VMDK and migrated to ESXi. I also installed VMware Tools. ...
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0answers
1k views

rsnapshot frequently ext3-fs error: “ext3_lookup: deleted inode referenced:”

I've having following problem frequently on our backupserver. I'll try to explain the issue in the hope somebody could clarify why and how to fix it Setup details We have a DELL r200 server attached ...
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4answers
17k views

How to extend an ext4 partition and filesystem?

I have a 400GB disk with a 320GB ext4 partition. I would like to grow the ext4 partition to use the left space (80GB of free space). +--------------------------------+--------+ | ext4 ...
4
votes
3answers
2k views

Is there a hard limit to the number of files a directory can have? [duplicate]

Wondering if there is a limit to the number of files that can be stored inside a directory, in CentOS 6. There is one particular directory which could potentially have millions of subdirectories. ...
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1answer
108 views

Inodes after extending filesystem

If I make a ext4 filesystem and add about 20% of extra inodes, how would this effect the inode count if later I extend the filesystem? Would the extended filesystem also automatically add an extra 20% ...
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1answer
99 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 ...
2
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2answers
62 views

File Server: to zip or not to zip

My workplace shares a SMB fileserver for storing documents and files that we receive from clients. The contents of these directories are usually a mixture of Documents (PDF, .docx) and images. Clients ...
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1answer
365 views

limit filesystem cache size for specific files under linux

I have a directory with many files with high access rate. And I need to reduce the cache pressure of this specific directory to prevent other files (like my home directory files) from the pushing out ...
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1answer
73 views

Storage virtual machine. LVM or loop devices? [closed]

Actual situation: I'm the administrator of a virtual machine. The virtual machine is a Debian. This machine will be mainly a storage machine with different services (svn, ftp... ), and a webserver. ...
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4answers
315 views

Auto-delete files after they've been on the server for 14 days

We have a Linux FTP server that clients and project managers upload files onto to exchange files. Unfortunately, nobody ever goes in and deletes anything when they're done with it. I'm looking for ...
0
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1answer
85 views

In search of a distributed file-level filesystem [closed]

I'm looking for a distributed, fault-tolerant file-level (not block-level, preferably) filesystem for use in a small Linux-based HA cluster of sorts. The files that are stored will be fairly small ...
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1answer
380 views

mount tmpfs automatically on linux start up

# mkdir -p /mnt/tmpfs # mount -t tmpfs -o size=6400M tmpfs /mnt/tmpfs I ran that but if I was to reboot will I need to run that again because it is tmpfs? How do I get that mount point to come ...
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1answer
166 views

PXE server - ubuntu setting username/password later - is it possible?

so I am writing a program in mainly C/C++, though I think this question fits under server fault as it is related to the Linux distro Ubuntu. So what I am looking for is a way (possibly hackerish-way) ...
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4answers
413 views

Slower file create on faster server. Why?

I have thwo servers. The old one is 24GB RAM, i7-950 @ 3,0Ghz, 2x 1,5TB SATA HDD (ST31500341AS). The new is 32GB RAM, i7-3770 @ 3,4GHz, 2x 3,0TB SATA HDD (ST3000DM001-9YN166). Now I noiticed, ...
2
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2answers
869 views

Building raw disk images: best way to delete files for compression?

I'm building raw disk images (ie, dd, chroot to install linux). During the customization process I may delete files, use temporary files, etc. What is the best way to delete these files to ensure the ...
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1answer
93 views

Final move of data after synchronising folders

I am migrating six terabytes of data from legacy systems to new. The legacy data is stored in file vault application which retrieves files very slowly. Because of this it took six weeks to copy the ...
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2answers
133 views

How to delete and reuse ZFS filesystems inside a Pool

I have this ZFS Pool. NAME STATE READ WRITE CKSUM app ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 c1t2d0 ONLINE 0 0 0 ...
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0answers
38 views

Deleting a large error log file

We have a few PHP sites running on a windows server that are generating errors in the c:\windows\temp directory under a single log file. This file is nearly 30gb at this point. When I try to list the ...
1
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0answers
545 views

How do I reboot over SSH, so that fsck can be run, on a read-only file system without sudo (or root)?

I have a server in a remote location, which I think is suffering disk issues and has remounted / as read-only. My Debian (Squeeze) installation does not have a root user. I have been using sudo to ...