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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456 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
votes
1answer
74 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 ...
0
votes
0answers
245 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 ...
6
votes
2answers
865 views

Why the path “//” is working?

Tested on a debian and debian-based: $ cd // && pwd && ls // bin build dev home ... Why is the path // a valid path?
0
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1answer
28 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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votes
1answer
37 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 ...
2
votes
2answers
307 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 ...
0
votes
2answers
80 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 ...
-1
votes
3answers
691 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 ...
-3
votes
1answer
55 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 ...
-1
votes
1answer
96 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 ...
0
votes
0answers
2k 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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vote
2answers
77 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.
0
votes
2answers
99 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 ...
0
votes
1answer
43 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 ...
0
votes
0answers
192 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 ...
-1
votes
1answer
35 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 ...
-1
votes
1answer
172 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 ...
-1
votes
2answers
120 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 ...
1
vote
1answer
180 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 ...
1
vote
1answer
52 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 ...
2
votes
2answers
3k 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 ...
3
votes
2answers
115 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. ...
1
vote
1answer
39 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
votes
1answer
151 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
votes
1answer
466 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) ...
0
votes
1answer
52 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 ...
0
votes
0answers
111 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 ...
-1
votes
1answer
93 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? ...
0
votes
1answer
21 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 ...
0
votes
0answers
99 views

Linux Kernel messages in log - disk write seems to be hanging on database

I was having database issues whereby commits were not completing (PostgreSQL) and it seems to be related to these messages that are filling up my server log: Jan 30 02:29:45 server001 kernel: ...
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votes
1answer
659 views

RAID 5 30TB File storage - filesystem and strip size on large files

Nowadays my storage is 6TB and as I will grow up to 30TB in few months I would like to hear some tips/recommendations on filesystem and element strip size to not to have problems in future. 90% of ...
1
vote
1answer
95 views

Linux RAMFS grows. Does it also shrink?

The RAMFS file system automatically grows as much needed and as long as there is avaiable memory. Removing files from it makes it shrink or it remain at the same size?
0
votes
1answer
27 views

Tools or scripts to transfer files of a specific criteria to a USB drive

The company I work for has a 'company wide' share that is mapped on all of our machines. Over the years this has grown into the terrabytes and now lucky me has been tasked with bringing this back ...
0
votes
1answer
42 views

debian stable raid autogrow filesystem database

I need to setup a debian stable system meeting the following needs: Hard disks should be mirroring : Raid 1 Filesystem(s) should autogrow if possible (just in case we replace one hdd with a bigger ...
1
vote
3answers
36 views

File system with read/write logging by user

Is there any file system - or monitoring tool - which logs which users have read and written which files? Something like this: 2014-01-21 13:45:45 john 12939 /users/john/hello.txt write ...
2
votes
2answers
150 views

Storing duplicate files efficiently on linux

I host a lot of websites and our system makes it easy to duplicate items in these sites which is handy, but leads to lots of duplicated (and potentially quite large) files. I was wondering if these is ...
1
vote
0answers
65 views

Directories converted to files

Our development team went to start HTTPD and got this: Starting httpd: (20)Not a directory: httpd: could not open error log file /etc/httpd/logs/error_log. Unable to open logs ...
0
votes
1answer
665 views

Why is Ubuntu/Linux /proc/mounts lying to me?

I've got a broken HDD for the rootfs - this probably caused the filesystem to be mounted read-only... however /proc/mounts still says it's mounted rw: $ cat /proc/mounts rootfs / rootfs rw 0 0 ...
2
votes
1answer
54 views

Choosing a zpool size?

Is there a rule of thumb when to create a new zpool instead of expanding the current? Right now I have 100TB and can either expand with another 100TB or create an extra.
7
votes
1answer
345 views

Which block sizes for millions of small files

I have 2x 4TB Disks in hardware RAID1 (it might be a LSI MegaRaid) on Debian Wheezy. The physical block size is 4kB. I'm going to store 150-200 million of small files (between 3 and 10kB). I'm not ...
0
votes
3answers
169 views

File Monitoring on Ubuntu 12.04 Server [closed]

I´m looking for a simple way to monitor critical folders for changes to recognize hacks on a ubuntu 12.04 server. After Days of reading How To´s on different programms I´m a bit confused which way to ...
0
votes
3answers
142 views

File system benchmark that generates I/O from distribution of file sizes [closed]

I am looking for a file system benchmarking tool to test CephFS. This benchmarking tool has to: Generate a set of files (call it fileset) following a particular distribution, e.g., gamma, empirical, ...
1
vote
0answers
3k views

Apache Tomcat setting Max file upload size

I am implementing a Grails/Groovy web app, I want to limit the user's file upload size, I don't want someone uploads a 10GB file to my server. What I figured out was that most approaches to calculate ...
11
votes
4answers
803 views

last time a filesystem was checked?

What command can tell me the last time that a filesystem was fsck'd? A date would be nice, but I'd settle for the mount count since the last fsck. I've looked all around for this in fsck*, lsattr, ...
0
votes
1answer
37 views

Updating software on Remote Desktop Services

We have Remote Desktop Services setup under Windows 2012 R2 in session mode, meaning we are not virtualizing machines. The software we are rolling out is our own, so we can make sure it plays nice in ...
3
votes
1answer
127 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) /: ...
2
votes
1answer
41 views

Filesystem on a block device that now has another name?

Here's the scenario: I'm attaching a disk to a KVM guest VM, lets say 'vdb' Now I create a partition on 'vdb' and format it as ext4 (vdb1) I mount 'vdb1' and write some data I unmount the 'vdb1' I ...
0
votes
2answers
152 views

Expandable Linux filesystem w/ redundancy & support for different drive sizes?

I did a bit of research already and didn't come across any filesystems so far that have the following features: Expandability, Redundancy, and the ability to utilize the full capacity of different ...
6
votes
3answers
588 views

Root filesystem filling up, no big files

So im a very new sysadmin, just got out of school and doing my internship. Only problem is that im the only sysadmin in the place and no one to show me the job. Anyway, it's a very small company, ...