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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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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3answers
1k 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 ...
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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 ...
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3answers
617 views

Filesystem access through web interface

I have an SSH+Samba server so people can access its files from anywhere on the network. I thought it would be also interesting to provide access through a web interface, so they can access the files ...
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3answers
111 views

lamp — edit PHP file but doesn't change web output — including die()

Server is standard Linux server on Amazon Web Services. Cent OS 5/Apache/PHP 5.3. No APC. It's worked fine for over a year, but now when I edit some but not all PHP files on the server using vi, the ...
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724 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 ...
4
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2answers
804 views

ESENT fails to determine the minimum I/O block size

I'm trying to get RavenDB running in embedded mode on a shared/multi-tenant webhost. RavenDB relies on the ESENT storage API. The filesystem on the hosting machines is locked down. The RavenDB ...
3
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2answers
147 views

can 'Percona MySQL Data Recovery' be used to recover dropped tables if the datadir filesystem is mounted as /

according to Percona: Unmount the filesystem or make it read-only if... You have filesystem corruption OR You have dropped tables in innodb_file_per_table format If I have innodb_file_per_table ...
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2answers
182 views

S3 based file system capable of requesting only part of file

I'm storing large datasets in s3, but on a given computer in my cluster, my program only needs to read a small subset of the data. I first tried s3fs, but it downlooads the entire file first, which ...
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2answers
247 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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2answers
821 views

ext3/ext4 physical block size view

I'm using a suse 11 server with xfs and using "xfs_info /srv" command i seen this. xfs_info /srv/ meta-data=/dev/mapper/vg01-srvvol isize=256 agcount=38, agsize=1964032 blks = ...
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2answers
98 views

Is it a good idea to take onsite/offsite backups of server images?

Assuming a non-virtualized environment it a good idea to take actual images of servers (using something like Acronis True Image) and store them on\off site? Backing up data is great but I feel it ...
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2answers
204 views

Shared block device file system (cluster file system without networking)

Is there any file system that can be mounted multiple times and supports concurrent file access for Linux? Basically I want something like a cluster file system but without the need to have a running ...
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2answers
166 views

Filesystem access causes occasional slowdowns on Lenny vps with minimal load

I have a virtual server hosting multiple small sites in a LAMP environment. The system was originally a Debian 4, later dist-upgraded to Debian 5. It has 1GB dedicated and 1GB shared RAM and 20GB ...
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2answers
83 views

Application server experiencing filesystem problems

We have a Java Application server installed on our client's test server. Within application server, a number of threads access the filesystem in a number of ways. The application servers are started ...
0
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2answers
80 views

Copy/Paste for large file crashing Windows

I have a new Dell PowerEdge T320 server with 1 SSD non-RAID and 3 HDDs in RAID 5 all on one Perc H310 controller. RAM is 48 GB and I have Windows Server 2012 R2 Data Center installed on the SSD. I ...
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2answers
177 views

Backup strategy for millions of files in lots of directories

We have millions of files in lots of directories, for example: \00\00\00\00.txt \00\00\00\01.pdf \00\00\00\02.html ... so on \05\55\12\31.txt backing up these to tape is slow as backing up data in ...
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2answers
74 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 ...
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2answers
95 views

Is there any way that my linux system can email me about any files created in home directory?

Is there any way / script so that whenever the new files gets created inside the /home directory then i get the notification email so that i know if some malicious user has uploaded something on my ...
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2answers
43 views

Craft a file that ignores all writes without being marked as read-only

(Ubuntu 11.04.) I'd like to work around a configuration limit a certain service that writes an append-only file. I'll have that file mounted from a remote machine (say, by NFS, can change this). I ...
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2answers
283 views

Recommended filesystem, mysqltmp and filesystem related settings for a mysqld box running ssd + BIG ram + linux?

What is the recommended filesystem + mysqltmp location when dealing with a ssd based system that has some ram to spare? Currently we run our mysqltmp folder on a 4gb tmpfs partition. Works great. But ...
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2answers
612 views

Shared storage for web cluster

Have a big question about shared/clustered/distributed file system for storage. It will shared storage for shared web hosting (web files + maildir) and OpenVZ containers storage . Have any one working ...
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2answers
111 views

Why can I not edit, delete directories inside of this directory

I thought this was PHP related when I started out, but maybe it isn't. My original post, which may be irrelevant now is located at the bottom. I think it should be ignored. The problem is I have a ...
0
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1answer
347 views

/dev/root not found at the time of booting Cent OS 5.7

Initially I got the error /dev/root not found while booting Cent OS 5.7. I knew the issue at it was because of wrong entry in /etc/fstab which was /dev/VolGroup00/LogVol00 / ext3 defaults 1 1 Here ...
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1answer
199 views

IIS 7, ASP.NET security nightmares

For no apparent reason that I know of, my ASP.NET website on my local development server (IIS 7) started returning Error Code 500 - Internal server error. After granting the user "Users ...
0
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1answer
592 views

ext2 file system and Solaris 10

I have Solaris 10 installed on computer and I have USB flash drive with ext2fs partition. I want to mount flash drive and do this: 1) Download FSWpart and FSWfsmisc packages 2) Install: root~#gzcat ...
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1answer
422 views

File corruption issue AIX jFS2

I have an application which is doing a lot of file operations.Its doing a lots of file read and write operations(lot of small files). We have found that some of the files are getting mixed up ...
0
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1answer
149 views

How do I export my web-host's (VPS) filesystem to an image to load locally in a VM?

I'm a dev new to sysadmin, armed with root access to a linux box. I want to practice a bit on the configuration in a local virtual machine. What setup would I need to do this? My current idea is: ...
0
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1answer
45 views

Deliver files from a web server from outside the web app

Is there anyway to server a file from a web server through the web, that is not within the web application. I am using Tomcat and a Java servlets based application.
0
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1answer
108 views

What privilege level is required on a Windows client workstation on an ActiveDomain to break file locks?

I'm not sure if I should be asking this here or on StackOverflow, but here goes: I'm part of a team maintaining a document management application, and I'm trying to figure out Windows file locking ...
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1answer
96 views

XPEnology - Filesystem

I've looked all over but I can't seem to find a straight answer. I have 4 NTFS drives with data on them - are these compatible with a fresh install of XPEnology? The aim is to obviously share the ...
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1answer
45 views

FreeBSD and tunefs(8): minfree option

The minimum free space threshold in FreeBSD is 8% which I think is too high. In a 1 TB Hard Drive, 80 GB of space is unusable. I need some more space in my hard drive. I want to reduce this ...
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1answer
473 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 ...
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1answer
450 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
495 views

iSCSI filesystem creation on Linux - Best Practices - Large Volumes - Many Files?

We recently purchased HP Lefthand 4500 G2 24TB box and also a DL380 G7 server. I'm running Centos 6.2 (RHEL 6.2). The Lefthand box consist of 12 2TB HD's configured in RAID6. That gives me about ...
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1answer
46 views

File system that mounts a set of exchangeable media as single file system and handles media changes transparently

I'd like to build a DVD library (probably later to become a tape library) with a home-built robot that moves media between a store area (i.e. the 'shelves' where the physical DVDs are kept) and the ...
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1answer
176 views

Is there a way to run OpenVZ on a filesystem that doesn't need to fsck?

I'm running OpenVZ, and occasionally need to power cycle my host. Of course, it has to fsck every time it comes back up (ext4) Is there a way to run OpenVZ on a filesystem that doesn't have to fsck in ...