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
44 views

Get file system write cache queue size

I am copying a large amount of files from one server to another via robocopy to a UNC share. I notice that after robocopy completes that there is a large amount of disk activity that lasts for a ...
0
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2answers
178 views

How to mount new logical volume (adding to fstab and mtab)?

I created a new LV for the first time using this command: lvcreate -L 20G -n iew-vm-lv /dev/ubuntu-vg #create the new LV When I try running mount /dev/ubuntu-vg/iew-vm-lv, I get the following ...
2
votes
1answer
63 views

Gearman writing “Too many open files” into the log. Disk space issues

We're running a service that makes screenshots of URL supplied and posts it to our S3 bucket. Similar to manet, but our custom coded nodejs app. We don't store the screenshots on our local hard drive. ...
35
votes
2answers
2k views

Unable to write to disk but disk isn't full

I am using Ubuntu 12.04 and can't write to any file, even as root, or do any other operation that requires writing. Neither can any process that needs to write, so they're all failing. df says I've ...
0
votes
1answer
51 views

How do I add storage to a VM so that the added storage is dedicated to a new directory?

I have an Ubuntu server with virt-manager. I have an Ubuntu VM running on this host from a qcow2 file. I don't use separate disk files or img files besides the qcow2 file. I want to allocate 50 GB ...
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votes
2answers
33 views

Where do I place my web files using Ubuntu?

I'm spinning up a new server using Ubuntu hosted by IBM Softlayer I used CentOS before this. I placed my HTML, Javascript or/& PHP files in the folder /var/www/html. However this folder doesn't ...
-2
votes
2answers
60 views

Linux file formats [closed]

On my RHEL system, I gave the following command: # file -sL /dev/sd* Here is the output that I received: /dev/sda: x86 boot sector; GRand Unified Bootloader, stage1 version 0x3, boot drive 0x80, ...
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0answers
60 views

Xenserver 6.5 Live Storage Migration

In my xenserver environment I have an LVM over ISCSI storage repository (SR) and I have another SR which is an NFS share setup on a synology server. To be clear, all servers are in one resource pool. ...
0
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3answers
65 views

symlinks on shared storage

Say I have a glusterfs mount that is shared between multiple servers, which is accessed by an application, and logs are written to a directory that would normally be in the directory tree of that ...
0
votes
1answer
38 views

Can Problems Arise When Multiple Servers Use One Mount

I am using Amazon Web Servers where I have an NFS file system that I mount to several other servers. One mount is shared between about 20 servers and the primary function of the servers is for a web ...
0
votes
1answer
19 views

how to sync files in linux - command prompt? [closed]

I see the following files in my directory - -rw-rw-r-- 1 sjos sjos 401 Oct 12 15:29 Makefile -rw-rw-r-- 1 sjos sjos 401 Oct 12 15:29 Makefile~ -rw-rw-r-- 1 sjos sjos 336 Oct 12 15:12 ...
-1
votes
2answers
38 views

How To Optimize Huge Directory of Images

I took over the tech operations at a small company. However, the previous lead made the erroneous decision of storing 100's of GB's of images, even though our website only ever uses around 5GB of ...
1
vote
1answer
42 views

Windows File System over HTTP

It looks like you can mount a one drive folder, see: http://www.eightforums.com/tutorials/34847-onedrive-map-onedrive-pc-windows-8-1-a.html Question is what kind of file system is this? How can I ...
-3
votes
1answer
115 views

Change existing file type from standard file “-” to directory “d” as shown with Unix ls -l

In summary, if I use ls -l it yields something for a directory like... drwxr-xr-x and the reported error for a directory with files in it, is it shows as a standard file and ls -l yields... ...
0
votes
1answer
158 views

Unable to read superblock on virtual server

After booting ubuntu 14.10 I got log output like this [1377286.486802] EXT4-fs (sda2): unable to read superblock I can login and use the machine but I guess something is wrong. Some diagnostics ...
-3
votes
1answer
100 views

How stable and reliable is HAMMER in 2015? [closed]

It's been a long time since HAMMER came about. Has it been deemed reliable for general-purpose consumption yet?
0
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0answers
51 views

Is there any default time-out for file locks on Windows network shares?

Sometimes it happens that I want to rename/delete a file on a network share, but Windows tells me that the file is currently in use, even if I know that nobody else is accessing that file. After ...
0
votes
0answers
12 views

Debian used + available does not equal size (storage) [duplicate]

I'm trying to find out why /dev/sda1 Used+Avail != Size. I ran a df -h and the output I get is this: File system Size Used Avail Use% Mounted on /dev/sda1 320GB 683M 303G 1% ...
2
votes
0answers
76 views

Windows Server: Impact of high count of ACL entries on overall performance

I have been searching on this and just can't find enough information on the topic. We are trying to develop a custom folder / permission tool. The clients needs are quiet complicated as there will be ...
1
vote
2answers
73 views

How to resize a virtual machine running ubuntu in VMware 5

I was attempting to follow the instructions listed here http://www.joomlaworks.net/blog/item/168-resizing-the-disk-space-on-ubuntu-server-vms-running-on-vmware-esxi-5 I started with a 150 gig Drive ...
0
votes
0answers
64 views

How can i sync exist files on brick to new brick with replication in glusterfs?

I successfully installed glusterfs and set up 'Replicate' on 2 servers sudo gluster peer probe $NODE1_DNS; sudo gluster volume create file_store replica 2 transport tcp $NODE1_DNS:/brick1 ...
6
votes
2answers
314 views

What is reasonable storage failover time that most OS (VM) can tolerate?

I have a GlusterFS 2 node 2 replica setup. I am planning to use it as OpenStack instance store, in which the VM disk image is stored. From my tests, if the GlusterFS node which the hypervisor ...
0
votes
0answers
38 views

using testdisk to restore old superblock, cryptowall3.0 restoration

I have a drive that was infected with cryptowall3.0 Documentation states that the file is deleted and then from memory a new file is encrypted and that memory file is rename. Hypothetically restoring ...
2
votes
2answers
43 views

File permissions for Linux when editing in Windows

What I want is to move my development from Linux to Windows, using Docker's Tools (Kinematik, Machine, Compose). I'm still developing web applications supposed to be running on Linux in production, of ...
0
votes
1answer
67 views

Tmp folder and read-only-system…file system corrupt

fron 1 month I have always problems with my VPS. Before it was file system, it told Can't create/write to file '/tmp/ - error 30. My host had fixed the problem but today tried to upgraded Webmin and ...
2
votes
0answers
58 views

Constrained Delegation between IIS, SQL Server, SSRS and File System

First of all, not sure which site is best suited for this question be it SO, SF or SU so please feel free to suggest migration! I have a requirement to constrain delegation between several machines ...
0
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0answers
134 views

Usage of overlayfs

I do host websites and need the ability to give people a staging area of their current site. Since sites can get pretty big I had a look at overlayfs. The idea is to create and overlayed folder on top ...
0
votes
2answers
49 views

Can a “virtual” SVN repository be created whose own folders point to folders in another repository (like a FS mount)?

I have a Subversion repo hosted on a CentOS-based server. There are several teams who require access to different parts of the repository. I'd like to allow different users to see different parts of ...
0
votes
0answers
42 views

After installing a new disk, can't use old mount points on linux

So, I'm stumped on this one. I have functionally two volume groups. vgold and vgnew, and I migrated the lvms from the old one to the new one (via rsync of the files to an external drive first, not ...
-1
votes
1answer
27 views

IIS SMTP to create emails as file

Is it possible to configure IIS SMTP to receive emails from client and store into a file? Yes? How? My company does not allow email communication on our secure domain (long story). So in order to ...
0
votes
0answers
125 views

Why is it not possible to mount a replicated gluster volume with one Gluster server?

I am running 2 glusterd on individual machines connected by private network. It apears that I can only mount the bricks if both deamons are up, otherwise it failes. As I am pretty new to glusterfs, ...
3
votes
3answers
175 views

Scaling beyond 65k open files (TCP connections)

I have a requirement for my Ubuntu 14.04.3 LTS server to have >65k clients connected to it via TCP. Although I have memory & cpu to spare I'm unable to get more than 65k clients to connect. I ...
0
votes
1answer
51 views

Are zero byte files an indication of file system corruption?

I recently noticed a strange behaviour. I could not restart a productive webserver running since more than a year because the configuration was invalid: # /etc/init.d/apache2 restart Syntax error on ...
1
vote
1answer
90 views

Slow file io performance after large network copy on Win7

In a step of our build process we run a tool that generates about 125,000 files. When generation is complete we copy them up to a network share so other systems can copy them down to process further. ...
3
votes
3answers
81 views

A good place for application files in Linux

I am rather new to Debian file system placing convention. I see that configuration files for applications are usually stored in /etc/{application_name}/ Is this a "go-to" place when storing actual ...
0
votes
2answers
107 views

mke2fs says “Device or resource busy while setting up superblock”

I'm trying to test restoring a backed up linux file system /apps (ext3 filesystem) /dev/cciss/c0d0p7 177G 3.8G 164G 3% /apps I ran the following command to take a dump: /sbin/dump -0uz -f ...
1
vote
0answers
14 views

Call to pythons os.getcwd returning odd results on Lustre filesystem

I don't really know if this question should be on Server Fault or Stack Oveflow, but I thought I'd try here first. I have a python application that makes quite a lot of calls to os file system calls ...
0
votes
0answers
67 views

File writes stall during heavy disk I/O on Linux box

I have two processes running on my box => A and B. Whenever there is heavy disk I/O activity caused by writing large files to the disk by process A, I see that file writes in process B are stalling ...
0
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0answers
20 views

du and df show discrepant amounts of available disk space on my Linux server [duplicate]

I know that inodes aren't necessarily deallocated with certain removal/deletion methods that users/programs use. When inodes are still present and pointing to files that have been deleted, but two or ...
6
votes
1answer
242 views

zfs checksum error in raidz1 vdev but not in disk

I am backing up data stored in a zpool consisting of a single raidz vdev with 2 hard disks. During this operation, I got checksum errors, and now the status looks as follows: pool: tmp_zpool ...
0
votes
1answer
53 views

sporadically, rsync takes exceptionally long

We do backups with rsync like this: rsync -axH --inplace --delete --delete-excluded \ --exclude-from=excludes --stats \ --link-dest="${previous?}" "${source?}"/ "${dest?}"/"${stamp?}" $previous ...
0
votes
0answers
17 views

Filesystem benchmark read tests

I am benchmarking my filesystem which is ext3 and I made few tests with program hdparm. To be exact I conducted hdparm /dev/sda4 -t test (/dev/sda4 is my ext3 partition). And I got results with ...
2
votes
2answers
198 views

Setting up tmpfs `/run/lock` for hundreds of thousands of 0 byte lock files, and dealing with the inode limit

I have a situation where I need to create 100s of thousands of 0 byte lock files for concurrency control. I've tested creating them by using: for i in `seq 1 50000`; do touch "/run/lock/${i}.lock"; ...
0
votes
1answer
82 views

Where to create an AF_LOCAL/AF_UNIX socket file when not allowed to write in /var/run?

FSH says that socket and pid files should go to /var/run However, for security purpose, only root can creates file and subdirectories in this location. A common solution is creating a subdirectory ...
0
votes
1answer
335 views

“cannot open shared object file: Input/output error” - for everything

pacman: error while loading shared libraries: libarchive.so.13: cannot open shared object file: Input/output error Almost every command responds with something like this, each with a different shared ...
0
votes
0answers
53 views

Mounting a remote filesystem using v9fs (client) and u9fs(server) does not give me write permissions

I am trying to mount a 9p filesystem on a linux client machine running v9fs as the 9p client with the following command sudo mount -t 9p -o ...
1
vote
1answer
310 views

Error: No space left on device when starting/stopping services only

I know there are multiple questions like this already, but none of their answers applies to my problem. So I tried to upgrade from Debian 7.7 to Debian 8.1. Every works fine, but certain operations ...
2
votes
1answer
285 views

Disable file cache for mount point

I ran into a bug similar to this one: RHEL NFS client returns NULL bytes when reading a growing file So my solution was to check for \0 Bytes and reread the file. Problem here is, that the wrong ...
0
votes
0answers
88 views

Proxmox-Server: Extremely high load during deletion-task of old backups

I'm using Proxmox to get some VPS. In Proxmox I set up some backup-tasks which are running fine. BUT: The backups are stored in big files (each backup has round about 300GB) so I can not store more ...
0
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0answers
62 views

How to prevent users from creating long paths

Long file paths cause real problems when need to move/copy or delete large amount of data that the path is 350 character long (max character allowed by Windows is 256) I was wondering if anyone knows ...