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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install application/http services to “/srv”?

I have been working with a team who used to install all the application and http services like apache or tomcat to the '/srv' directory. I suspect mostly in order to keep the installed services ...
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2answers
42 views

Performance difference between ramfs and tmpfs

I need to setup an in memory storage system for around 10 GB of data, consisting of many 100 kb single files(images). There will be lots of reads and fairly periodic writes(adding new files, deleting ...
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5answers
352 views

Bash: mv directory one at a time

I am trying to move all subdirectories of a folder to another share on the same server. If I do a mv *, I will run out of space since the folders are not removed until all folders get transferred. ...
2
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1answer
26 views

How to add partition table to existing EXT4 filesystem

I have software RAID6 on 8x3TB disks (18TB), there is filesystem od device /dev/md1, but EXT4 can`t be bigger than 16TB so there is 2TB of free space. I would like to use this space. My first idea was ...
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0answers
11 views

Force filesystem check on Ubuntu Server 12.04.4 LTS

My root filesystem has errors. I have made sure that errors will be automatically corrected: root@host1 ~ » grep FSCKFIX /etc/default/rcS FSCKFIX=yes And then forced a filesystem check during ...
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3answers
377 views

Why might `ls --color=always` be slow for a small directory?

For a certain directory DIR on my system, the ls --color=always takes about 8 seconds, although it contains less than 10 files and subdirectories. Without the color argument it takes no time. Why ...
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2answers
820 views

Why the path “//” is working?

Tested on a debian and debian-based : $ cd // && pwd && ls // bin build dev home ... Why the path "//" is a valid path ?
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1answer
984 views

prevent filesystem from entering read-only mode

I have found that my server's filesystem is continuously entering read-only mode. There have been some issues with the raid1 array, but I have removed the bad disk from the array. However, it is ...
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3answers
2k views

Robocopy hiding folders on backup drives

I have a backup batch file that uses Robocopy to backup my files (note this example contains newlines that you should remove): robocopy "C:\" "G:\Default\RoboCopyBackup\C" /XF Pagefile.sys /XD ...
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1answer
15 views

Can I repair a file system with fscheck while it's mounted?

On a openvz hostnode some vps didn't shut down properly. There is no separate partition for /vz, they run in root. When restarting a vps OR copying a big file vz-dump (ca. 28GB) from one folder to ...
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1answer
626 views

No posix acl in debian Wheezy with ext4

I was running a new script and encountered the following error: Your filesystem or build does not support posix ACLs So I thought no problem, just add acl,user_xattr to my fstab. It now looks ...
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1answer
30 views

Server Writing Blank Files

I have an old desktop that sits on the side of my desk at my office. I use this as a web server to demo websites (it doesn't host any "live" production sites). I've never had many issues with it ...
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4answers
300 views

Keeping folder of files in sync over 3 machines

Morning, Got 3 machines that have user content on them, which I need to keep in sync. This is a 3 way sync. Currently I run rsync but we just don't handle deletes. Have looked at something like ...
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4answers
455 views

Does ZFS cache Compressed or Uncompressed data in a ZFS file-system with compression turned on?

ZFS supports file-system compression and it also caches frequently or recently accessed data. If a system has lots of CPU but the underlying data storage system is slow. It is possible that ZFS would ...
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1answer
26 views

Best parameters for ext4 filesystem for storing virtualbox disk images

I have partition, which I'm going to use for keeping VirtualBox disk images (VDI, or may be VMDK). They are fixed-size (not dynamically-allocated) images. There are no other files/directories on ...
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1answer
303 views

ERROR 1307 (0x0000051B) - While copying with Robocopy - None of the known sollutions work

I'm trying to copy a folder from one harddrive to another using the folowing robocopy options: robocopy "H:\Source" "T:\target" /E /COPY:DATSO /R:1 /W:1 /DCOPY:T /Z /LOG:T:\Belfirst_copy.log /NP ...
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2answers
827 views

Re-sizing disk partition linux/vm

I VM Player running a linux guest and I was wanting to know how do I expand the disk? In the VM player I gave more disk space but I am not sure how to mount/expand/connect the new disk space to the ...
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2answers
20 views

linux minimal block size [closed]

Question : I would like to know if one could create an empty partition with a very small block size, say 100 bytes, and get their experience on the long run. Are there any gotchas ? Context : I ...
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2answers
762 views

mkfs.xfs: libxfs_device_zero write failed: Input/output error

I can't find a way to create a filesystem on one of my disks. first i'm geting the following output: [root@~]# mkfs.xfs /dev/sdb1 mkfs.xfs: /dev/sdb1 appears to contain a partition table (dos). ...
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3answers
61 views

How to find out capacity for network interfaces?

I could get the capacity for the network interface by lshw, but which file in sysfs is this information stored(i.e. which file in /sys/class/net/eth0/device/ directory)? $ sudo lshw -class network ...
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1answer
9k views

Deleting windows.edb and unchecking Indexing service lead to hard drive file records swapping

I followed the instructions listed here:http://www.mydigitallife.info/2007/09/18/turn-off-and-disable-search-indexing-service-in-windows-xp/ to free up space on hard drive by deleting the windows.edb ...
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1answer
34 views

manually clearing my ubuntu-based linux tmp folder while booted from a linux live cd [closed]

If it is a temporary folder, then nothing should be required to remain there. Now I'm not looking to cause myself issues and I could just leave well enough alone but there are always folders and ...
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1answer
44 views

Create a 'GitHub' style index page for files/folder on a fileserver [closed]

My workplace doesn't have a easy to use document management system, and I have no chance in building or installing one. Right now, people just throw files on a shared fileserver, where search doesn't ...
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0answers
47 views

ZFS import unable to find any pools

I had a ZFS pool -- a mirror containing 2 vdevs -- running on a FreeBSD server. I now have only one of the disks from the mirror, and I am trying to recover files from it. The ZFS data sits in a GPT ...
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2answers
50 views

How to use a file as a zpool?

If I do dd if=/dev/zero of=/tank/test/zpool bs=1M count=100 how can I treat the file /tank/test/zpool as a vdev, so I can use it as a zpool? It is for zfs testing purposes only.
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2answers
583 views

How can Linux mount an NFS directory, and the filesystems mounted inside it?

I have an NFS server with a directory which contains a dozen other local filesystems. I'd like to mount the top-level directory on the server, and have the Linux client automatically mount the right ...
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2answers
46 views

Which remote file system can be used on Linux without occupying local space? [closed]

I want to extend my server's local disk on Debian 6.0 by mounting a remote file system. But I don't want to have this remote file system to occupy (too much) local disk space, for instance with ...
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3answers
2k views

Directory that a user can read, but root can't?

There's a directory underneath my homedir called ".gvfs". As my regular user account, I can read it just fine: ~ $ ls -lart ~raldi/.gvfs total 4 dr-x------ 2 raldi raldi 0 2009-05-25 22:17 . ...
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0answers
85 views

Is this a filesystem bug? How can I remove this file [duplicate]

Check out in the middle of this output. What is wrong with this file system? root@amt-server:/home/amt# ls -al ls: cannot access .gvfs: Permission denied total 160 drwxr-xr-x 22 amt amt 4096 Mar ...
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1answer
39 views

When does sychronizing files between servers get too much to handle? [closed]

Say I was creating a hosted application like wordpress, where people manage their blog. The key point I am focusing on is sychronizing the template pages between all my servers. So each customer ...
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0answers
20 views

AIX JFS2 I/O performance problems

I have a fresh installation of AIX 7.1. I noticed that JFS2 file system with logging enabled (log=/dev/hd8) is dramatically slower than one with log=NULL. Simple zip archive extraction takes 5 minutes ...
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1answer
24 views

mount hd as a different filesystem [closed]

I guess this question is already answered but could not find the solution. I have a USB hard disk connected to a remote linux machine and I want to mount that hard disk. What would happen if I mount ...
11
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2answers
660 views

Does btrfs have an efficient way to compare snapshots?

While diffing mounted snapshots would work, it sounds like it could be horribly slow in many cases. Is there btrfs specific functionality for diffing snapshots? (I was unable to find any in the docs) ...
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1answer
23 views

Access files/ folders remotely by authentication via browser/ web [closed]

We have some requirements where we want to allow our clients/ users to download files/ folders from our file server via browser/ web. We have a many different directories created on our file server ...
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1answer
51 views

Can't rsync files to NFS mount where file has special characters

I am trying to backup a few directories (Millions of files) and a handful (A thousand or so) have special characters. For example, the source file is '78192-File Name ? Name File.pdf' And rsync ...
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2answers
48 views

What network based file system for linux allows for read only access,remote access and allows for mounting at any time?

I'm brainstorming at the moment, but basically this is what I need: A remotely accessible and mountable file system for Linux That requires no password or key to access. Is read only Allows multiple ...
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2answers
216 views

VMWare ESX 3.5 Input/Output Error

I'm using Vmware ESX Server3.5 for running our Server VMs. In one of our datastore, the partition is used 100% and Its stopping the VM to power on. /vmfs/volumes/504a6db7-97ab1f09-f958-0024818a4940 ...
1
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1answer
34 views

Trying To Redirect A Share From One Server To A Share On A Different Server

I have a Windows 2008R2 File Server that has multiple shares. What I would like to do is in some way redirect some (not all), of the shares to a different file location. For some of the shares, the ...
3
votes
2answers
74 views

How to atomically replace files in Apache?

When I replace served file (or modify symlink) and download this file simultaneously, Apache rarely (in small fraction of percent) responds with headers from old file, but with content from new file. ...
2
votes
4answers
1k views

where are kvm-snapshots stored?

I run several VM's on KVM/ubuntu, which all get started with the -snapshot parameter (the VM's only compute several things which can be destroyed after reboot). Out of the docs I've read, the changes ...
2
votes
2answers
164 views

Powershell: Single Script to “clean” multiple folders of files older than

I would like to create a maintenance script that would run on each of our servers to clean out common drop/archive directories. Preferably the script would use a reference file for the folder path ...
4
votes
6answers
25k views

How can I resize a LVM partition in Red Hat without lose of data?

My partition detail is like this /dev/mapper/VolGroup00-LogVol00 57G 8.8G 46G 17% / /dev/mapper/VolGroup00-LogVol05 259G 7.0G 239G 3% /home ...
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1answer
25 views

Sharing a file system, or how to horizontally scale access to files

My API mostly serves up stuff from the database, but a big part of the product is generating images by combining SVG files with large pattern fills (~50MB tiff files). The API can scale ...
0
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1answer
41 views

Are there performance or reliability concerns when spanning an LVM partition across multiple 2TB RAID virtual disks?

I'm preparing a Dell R520 PowerEdge server with 8x 1TB disks as a data archive/warehouse (file, RDBMS, NoSQL) server. Out of the box, the PERC H710P RAID controller was configured with 3x 2TB RAID6 ...
0
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1answer
84 views

btrfs: Looking for experience on btrfs error modes on bad sectors / read errors / medium erros

While running a Hadoop cluster that uses HDFS (so data is already replicated 3x) we experience often issues with ext4 because some bad sectors (the filesystem is unable to read or write to them) ...
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0answers
33 views

Make new files group-writable?

Is there a way to configure a Linux directory such that any time anyone in the group that owns that directory creates a file in the directory, that file will be writable by anyone in that group? I'd ...
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0answers
54 views

RAID5, unknown filesystem and disk failure

I have an Ubuntu 12.04 machine with 3 disks in RAID5, and the RAID controller is on the motherboard. After almost a year of flawless use, it seems that one disk had a failure. Every time I restarted ...
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1answer
47 views

Will rm delete files currently being accessed by web-client?

My web-service running on nginx and php deliver's files using X-Accel-Redirect header to the client, if I use rm /my/folder/*.* how will it handle files currently being accessed/downloaded by clients? ...
19
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7answers
32k views

df in linux not showing correct free space after file removal

I have file servers which are used to store files. Files might reside there for a week, or for a year. Unfortunately, when I remove files from the server, df command doesnt reflect the freed up space, ...
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1answer
15 views

Process being kept open “some where”

I've got an instance of the following error. The file is an outlook .pst file the has become corrupt, I'd like to move the file to another location and run the inbox repair tool. I have shut down ...