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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How to display root directories for a domain with DFS?

I am working with a DFS setup of the standard form \\domain.local\root. We are sharing these and to navigate to the DFS share users would type \\domain\sales or \\domain\support. How can I setup so ...
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1answer
30 views

EXT4 filesystem corruption

I have a CentOS 6x server and running a Java application on it, the application is using a mount point /javapp which is an EXT4 filesystem. suddenly I got the following error in the system logs: ...
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2answers
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When is fsck dangerous?

Recently I've seen the root filesystem of a machine in a remote datacenter get remounted read-only, as a result of consistency issues. On reboot, this error was shown: UNEXPECTED INCONSISTENCY: RUN ...
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66 views

No Filesystem after deleting RAID

So I had the /home partition in two disks in RAID1, one disk failed so the system booted with lots of errors about that. I didn't have another disk to replace the one that failed, so I wanted to ...
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Tidy up file shares on server 2012 by deleting unused share folders (Windows 2012 fileserver) [closed]

Hi Experts, Just want to find a tool or any script to run on windows fileserver which hosts more than 30 share folders copied from legacy server 2003. Is there a tool which can produce a ...
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1answer
28 views

zfs mountpoint not using the dataset

I am currently building a media server based on Linux Mint. The OS is installed on a small SSD and the intention is to store the media files on two HDDs (2TB + 4TB). To this end I have created a zfs ...
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15 views

Tracking filesystem changes in runtime

I need to have program that tracks changes made to the file e.g. when I am installing software from supplied installer instead of packages. I do not want to checksum every file in filesystem because ...
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1answer
20 views

How to set up LVM in this situation?

http://prntscr.com/bhyu4k I have a set up that looks like this, and I need to have sda3 and sdb under /home folder, all as one. I dont care about the contents of the current /home directory, ...
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1answer
43 views

How to combine an sdb disk with /home directory on sdb1?

I have two physical hard drives and the set up looks like this: http://prntscr.com/bhyu4k I need to partition the sdb1 (fdisk), create ext4 filesystem based on the type that is used on sda (mkfs ...
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1answer
76 views

How to copy a file to network resources using UNC paths

I'm trying to do something pretty simple, and conceptually it should work, but it doesn't seem to, and I'm not sure why. I have a file I need to copy to multiple folders on multiple servers. I've been ...
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1answer
33 views

Performance comparison of single RAID vs multiple filesystems

I'm trying to get maximum sequential disk throughput for an application on my Linux server. It has 7 SATA disks that I could put in one RAID0 or RAID5 using a hardware RAID controller (HP P420i). Or, ...
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1answer
45 views

Window can not find catalina.bat, even catalina is exist

When I try start tomcat in IDEA it gives me the below error message: Error running Tomcat 8.0.35: Cannot run program "D:\Tomcat\apache-tomcat-8.0.35\bin\catalina.bat" (in directory "D:\Tomcat\...
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3answers
32 views

Hyper-V how to connect compressed NTFS storage or convert it

I am on Windows Server 2012 R2, trying to connect to one Hyper-V virtual machine. The requested operation could not be completed due to a virtual disk system limitation. On NTFS, virtual hard disk ...
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1answer
21 views

How to mount a block device with no partition table in Windows

The filesystem starts from sector 0. I have an encrypted container on the host and want to pass decrypted media to the windows guest as a single physical device that is intended to be mounted on guest....
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1answer
48 views

Failing to mount SCSI from HP Modular Smart Array (MSA20)

I have acquired a HP dl360 g4p with a MSA20 Modular Smart Array. Currently I have Arch Linux installed on it since I had some issues with the graphics. But that is not why I am asking a question. ...
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1answer
22 views

Dir size increases after rsyncing to a different machine with same configuration

Have a MySQL (percona, 14.14 Distrib 5.6.28-76.1) machine with a 1TB SSD hosting around 712Gb of mysql data. MySQL has 4 databases, with, say database1, taking major space, 656Gb. Lets call this ...
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52 views

Samba/CIFS Ubuntu 14.04 mount error(112)

I'm trying to mount a samba network share on an Ubuntu 14.04 using cifs. On the server, I've got the share running. I can already map it as a drive in Windows. The share has a username and password. ...
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1answer
18 views

CentOS: How to group two partitions to one document root?

i have 2 partitions in my cloud server. And i want to group two of these become one as Apache document root. Because i have some websites and data is around 80GB. Does it possible? /dev/vda1 ...
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70 views

How do I increase a partition size (that doesn't use LVM) without removing and re-adding it

I have /usr on a separate partition. At the moment, this is how the server is set up: [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 4.9G 329M 4.6G 7% /...
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2answers
297 views

Optimizing storage of 10-20 million files on RAID5 (currently using LVM+XFS)

Although I've browsed some of the questions here, I think every situation is different and maybe requires a totally different solution. What I have now: Linux software RAID5 on 4x4TB enterprise HDD ...
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2answers
62 views

ext4 mount flags for 10+ mill files storage

I've initialised one large primary partition with the -T small flag to mke2fs, small on the system is configured as follows: small = { blocksize = 1024 inode_size = 128 ...
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34 views

Estimate when a filesystem will be full

Background I'm managing about 50 CentOS 5.6 Linux servers in my workplace with some critical filesystems that store weekly backups of applications, databases and user workplace files. Problem Last ...
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1answer
38 views

What is the best way to isolate vhosts on a linux server?

Firstly, I'm wondering what is the best way to isolate Apache's vhosts from each other. I suppose this has something todo with the Linux filesystem as well, since it's not a good practise to have ...
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2answers
40 views

Granting FTP users access to multiple folders on CentOS

I'm have a web server running CentOS Linux 7.2.1511. I do most of the mundane management tasks through Plesk 12.5.30 Update #29 but I also SSH in and get dirty with the command line when I need to. ...
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1answer
26 views

Overmount existing directory contents at runtime

I have the following scenario: users run software installed in /path/to/software I create a file-backed FS image with exactly the same contents as in /path/to/software I mount the image using ...
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31 views

Branch office replicated file system

I'm looking for something that can replicate file systems between multiple branch locations. Our file servers currently run CentOS 7. I feel like there has to be a better solution that what we're ...
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26 views

How to interpret the contents of /lost+found after serious filesystem corruption?

I am trying to work out whether some serious filesystem corruption is recoverable or not - however, I am struggling to find a definitive description of what i am seeing in /lost+found anywhere on the ...
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1answer
86 views

Rsync takes 8+ hours to backup 15M+ files

I have ~700GB storage where I store ~15M files, hence average file size is ~50KB. To back it up, over night I run a simple rsync script with the following set of flags: --archive --update --compress -...
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31 views

Can't find used inodes on server

I have a Xen VPS with Debian Linux installed. Once I found that all inodes are used. I checked this: ~# df -i Filesystem Inodes IUsed IFree IUse% Mounted on rootfs 3932160 3932160 ...
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28 views

Windows Server: file system limitation

We are developing an app for tablet which uploads and saves photos taken by the user. The problem we are suddenly meeting is that photos are not saved anymore in our directory in our Windows server ...
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2answers
107 views

How to correctly create a filesystem on disks that are connected to a RAID disk?

I want to create a ext4 filesystem on sda, sdb, and sdc and mount them to use them but I don't know how to handle all the raid stuff. lsblk output: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda ...
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Can Btrfs use SSD for metadata and leave bulk data on HDD?

is it possible for Btrfs to use SSD for metadata only & leave bulk data on less costly storage such as HDD? I refered to this page Using_Btrfs_with_Multiple_Devices and can not find a solution. ...
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42 views

How to avoid loosing changes on the root filesystem when kernel upgrading?

On Solaris and variants, it makes a zfs clone of the current / filesystem and installs the new kernel there. When rebooting you get the new /. In my case I have a /scripts directory, so if I ever ...
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2answers
73 views

how do I check if a bind mount on linux is private or shared?

The mount command allows us to make a bind mount shared, slave, shared+slave, private or unbindable, however, I was unable to figure for a given mount point what is type of subtree rooted at the bind-...
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1answer
124 views

Sluggish performance on NTFS drive with large number of files

I am looking at this setup: Windows Server 2012 1 TB NTFS drive, 4 KB clusters, ~90% full ~10M files stored in 10,000 folders = ~1,000 files/folder Files mostly quite small < 50 KB Virtual drive ...
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1answer
18 views

Can't find logical volume when booting imported disk images in Xen guest

I've got a couple of drives I copied over using ddrescue to image files for booting under Xen. They contain an LVM volume group with a couple of volumes in it, which was originally split across two ...
1
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1answer
45 views

df -h shows 100% usage but sizes don't add up [duplicate]

I have a situation where my root filesystem is supposed to have plenty of free space, but Debian behaves as if it had no free space left. Non-root users even refute to write anything complaining about ...
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79 views

XFS On VMware VM Fails With Bad Magic Number

I have almost exactly the same problem as described here. I am on RHEL7. 3.10.0-229.4.2.el7.x86_6 Inside vmware VM. file -s /dev/sdb /dev/sdb: LVM2 PV (Linux Logical Volume Manager), UUID: 89o2LY-...
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0answers
10 views

Create two users with different privileges for the same folder

I've the following scenario: I need to create two users that will access in FTP the same folder with different privileges by using vsftpd. What do you recommend me? Is it a good idea to create ...
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1answer
21 views

Can a folder on Linux be belonged to multiple users?

I have one folder on Ubuntu that can be read and written by user A and can be only read by user B. The solution I came up with is the following: create a group which have read permission on this ...
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29 views

Linux File Permission CVSD

I have a CVSD server on debian. which has few user who can access all the files and folder under cvs repository. but now i want to remove permission for one user only for one specific folder. That ...
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1answer
29 views

Filesystem block size confusion

I know that block size is, generally speaking, the minimal operation unit of a filesystem, but I was confused by fio, the I/O performance benchmark tool, which has a bs parameter to set the "block ...
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3answers
46 views

File permissions are being changed after gunzip of .gz file; how do I prevent that?

I have an NFS4 filesystem that has AD based authentication setup and ACLS to match. I am controlling access to the machines that mount the filesystem so the ACLs are very basic. One prevents users ...
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0answers
62 views

OverlayFS: How Can I Delete Files, Not Hide Them

I am trying to aggregate two mount points in to a single directory so that it will combine the files from both in to a single mountpoint. I am doing some tests with overlayfs and have been able to ...
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1answer
23 views

Cannot Create A Directory Called 'partition' On msdos Flashdrive

Really strange issue that I've encountered. I have fedora 23 and a flash drive that I play with writing some scripts for mount/unmount operations: /dev/sdb1 on /run/media/mymounts/kol type msdos (...
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1answer
100 views

VM filesystem in read-only mode

I have a VirtualBox Ubuntu VM with a virtual disk that is mounting as a read-only filesystem. I'm not sure why that is, and my attempts to remount as read/write haven't worked. One of the last things ...
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26 views

Shrinking an img file that contains linux partitions

I've got an img file (4,02GB) containing a Linux OS. My goal is to shrink this img filed down to < 4GB. The img contains a linux partition that only holds about 2,5GB of data. I need to be able to ...
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1answer
96 views

Unable to enable LDAP authentication on GPFS / Spectrum Scale file system

I have setup a GPFS / Spectrum Scale cluster on 2 RHEL7 nodes. On that cluster I have created a filesystem. I want to enable LDAP based authentication with kerberos so that I can NFSv4 ACLs to ...
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3answers
110 views

How do you securely shred a file from a RAID 6?

I'm looking for a way to delete a file from a RAID 6 implementation in a secure fashion (shredding). Do I need to delete the file from the RAID, disassemble the RAID, wipe the free space of each drive,...
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1answer
187 views

Resizing CentOS partition using parted

I am using CentOS 6.x. I would like to resize the LVM partiion, but I am little confused when I use parted to see the partition information. I have a few questions. Please look at the partition ...