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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1answer
27 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 ...
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1answer
71 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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2answers
56 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
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1answer
97 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
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1answer
39 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
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2answers
1k 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
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2answers
92 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
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1answer
33 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
76 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
173 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
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0answers
37 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
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0answers
77 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
64 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
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1answer
16 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 ...
1
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0answers
53 views

Can NetApp filers/shelfs be directly connected to Linux?

I have a NetApp FAS2050 which is no longer in production. It have 4 disk shelfs. So I wonder: Would it be possible to connect the disk shelfs directly to a Linux host with a LSI adapter, and then ...
0
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0answers
60 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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1answer
290 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
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1answer
73 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
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1answer
24 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
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1answer
31 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
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3answers
29 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
114 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
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0answers
57 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
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1answer
203 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
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1answer
52 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
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1answer
202 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
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3answers
114 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
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3answers
98 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, ...
0
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0answers
786 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 ...
10
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4answers
359 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
34 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
88 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
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1answer
39 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
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2answers
121 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
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3answers
224 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, ...
0
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1answer
791 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 ...
1
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1answer
437 views

How often should I defrag ZFS pools?

I ZFS scrub once a month which takes ~24 hours for the 72TB. For what I can find about how often I should scrub is: very busy pools, once per week not so busy pools, once per month or run a scrub, ...
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1answer
162 views

File base permissions are 666, why and is this a configurable value? [closed]

It is specified in various documentation on the net that linux/unix file base permissions are 666 with regards to how umask manipulates. This is also relevant with regards to the fact that default ...
0
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2answers
140 views

FS for many small files, mostly reads?

I need a direction since all the blogs/benchs seems to contradict. Goal: Having a lot of small files on FS in a directory tree fashion similar to this AB/CD/EF... Two size groups : G1 : 10-20 kB G2 ...
5
votes
1answer
80 views

How do NTFS permissions become improperly ordered?

I have some files on a network share and they were read-only accessible to users. I had set the permissions to provide full rights to all domain users - when I checked the main folder, this was still ...
2
votes
1answer
147 views

Best Linux filesystem for sparse files?

In some filesystems, blocks used when allocating new files are used to avoid reuse. When used for sparse files, such setup would lead to the file size constantly growing. Is there a filesystem that ...
0
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0answers
71 views

Why does xfs_db show ifree=0 but I can still create files?

Recently we ran into a problem with an xfs file system reporting that it had run out of space, even though there was lots of free space left. Because it is a backup volume, we ran into the 5% of space ...
2
votes
4answers
109 views

Partition required for ext4 filesystem?

I read on the arch wiki that it is not recommended to partition a disk before creating the ZFS filesystem on it. I searched but did not find any such statement about ext4. So my question is: can I put ...
1
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0answers
98 views

du, df and ls report wrong free / used space [duplicate]

We have an Ubuntu 12.04 server running on a VMware ESXi host, with multiple partitions, running Zimbra 8 (mta/ldap only). One of partitions is a 30GB partition mounted as /opt/zimbra/data. I had a ...
1
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2answers
59 views

How to allow an arbitrary group to mount a file system?

As far as I understood from the mount man page, by default only root is allowed to mount a filesystem. Filesystems with either the user or the users option can be mounted by any user. The owner and ...
1
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2answers
76 views

Removing Nested Folders where permissions are invalid and folder names are to long

I appears we have become a victim of not using the /XJ in a robocopy command, and we have ended up with a mass of nested folders. We want to get rid of them, but we can use the normal methods of ...
1
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1answer
64 views

Does NTFS / Windows as OS performs checksumming on file movement operations by default?

That's what I can't find Does NTFS / Windows as OS performs checksumming on file movement operations by default? alike ZFS or somehow else...
2
votes
1answer
46 views

Using Volume Shadow Copy to Identify Updated Files

I have folders in my server with over 60GBs of data across ~160,000+ files. The files in this folder change regularly. I need to be able to make a backup copy of the files in this folder at a given ...
1
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1answer
53 views

How to purge strange files in lost+found

somehow i did end ip with a 'lot' of corrupted files in lost+found directory (centos) and I can't get rid of them. Any idea ? [/lost+found]# ls -la total 196 drwx------ 5 root root ...
2
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0answers
102 views

How to organize millions of static files to serve efficiently over the web?

I'd like to create a service to serve several hundred thousand smaller files (from 5kb to 500kb, mostly around 10-100kb). Think of it as a kind of gravatar.com which serves those little avatar pics on ...