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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123
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LVM dangers and caveats

I have recently started using LVM on some servers for hard drives larger than 1 TB. They're useful, expandable and quite easy to install. However, I could not find any data about the dangers and ...
0
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0answers
16 views

Cross-platform filesystem watcher, running in VM watching host?

Can anybody suggest a way to copy data from a VM's host to the VM[0] in way that is cross-platform across hosts (i.e. Windows, Mac or Linux)? Right now, I'm achieving this by running rsync in the VM ...
5
votes
1answer
1k views

Mount Docker container contents in host file system

I want to be able to inspect the contents of a Docker container (read-only). An elegant way of doing this would be to mount the container's contents in a directory. I'm talking about mounting the ...
5
votes
2answers
2k views

Re/Installing an MSI, getting 'not a valid short file name' error

We are running windows 2008. We have a windows service called ImportService, that is installed via an MSI package. A previous version was installed about 3 months ago without problems. When have ...
11
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1answer
4k views

Read/write access for passthrough (9p) filesystems with libvirt/qemu?

I have recently started experimenting with the support for passthrough filesystems in recent versions of KVM/QEMU/libvirt. Making the filesystems available for read access has "just worked", but I'm ...
0
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0answers
13 views

Formatting external drives when changing a laptop [on hold]

I recently bought a new macbook pro. I had a windows laptop before. I have a couple of external harddrives which I used to use with external harddrives. To be able to write data to those external ...
0
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3answers
154 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 ...
-1
votes
1answer
20 views

Can OpenAFS be used as NFS?

I have an application that only runs on Linux, which will generate ~500TB of data over the next year, which all must be kept and backed up each day. It would be temping to go with ZFSonLinux or ...
2
votes
5answers
2k views

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 ...
0
votes
1answer
38 views

Server ran out of HD room

A rogue script brought my centOS-based server to its knees and resulted in 0 bytes of HD room left. I since fixed the issue and everything seems to be running normally. So my question is, what ...
0
votes
1answer
21 views

Ubuntu - mounting partitions as read only

I have a server which has probably been shut down one time too many as a result of power cuts. Now when I log in, it's mounted every partition I can see as read only. I've looked up the solution, ...
0
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1answer
54 views

CentOS 6.6 Doesn't Boot. Stucks at Enabling local filesystem quotas [ok] [closed]

I am running radius server on my CentOS 6.6, yesterday I tried to reboot my machine with sudo reboot with using Putty. It didn't restarted for some reason and I had to go to my DataCenter. When I shut ...
0
votes
1answer
37 views

File system preventing execution of files

So I have a particular ext4 drive that doesn't allow me to execute files. I have the following example in bash where even with sudo and with the file having execute permissions for all users, the file ...
4
votes
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 ...
15
votes
8answers
13k views

What is the best filesystem for insert performance on PostgreSQL?

I'm curious if anyone out there has done any experimentation or comparisons between file systems and database performance. On Linux, I'm wondering what is the optimal file system for a postgres ...
2
votes
1answer
51 views

VXFS (veritas) File system filling up - except it's not

I have a Solaris 10 server which is reporting that a file system is filling up: # df -h /opt/CSCObac/var Filesystem size used avail capacity Mounted on ...
3
votes
0answers
53 views

How and where is file system meta data cached in Linux [migrated]

My earlier question apparently had a wrong premise. I thought file system meta data was cached in the inode and dentry cache, but apparently not. When I do: # time find . > /dev/null real ...
0
votes
2answers
1k 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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votes
0answers
13 views

Less free space on system drive than expected [duplicate]

I have a Windows Server 2012 R2 virtual machine running on Hyper-V. There runs Microsoft Exchange 2013. The virtual machine has 2 virtual hard driver - C and D. C is the system drive, D is the drive ...
11
votes
1answer
1k views

Is there any way to fix a corrupted LDM database?

TL;DR: Are there any tools/approaches to diagnosing and fixing LDM (Logical Disk Manager) metadata structures without recreating from scratch? Full description: I have two SSD drives ...
-1
votes
1answer
123 views

XFS as default filesystem in the enterprise

After reading up on the whole data=ordered fiasco that EXT4 went through and how much support there was on it accommodating "broken" applications, I was surprised that a filesystem that is not ...
0
votes
2answers
16 views

Controlling file naming pattern conventions on a file share

We have a shared folder on a server, where sales managers ought to save incoming requests, invoices and other documents. Different types of documents separated by folders. Before now managers name ...
0
votes
0answers
18 views

JPG file and other of higher size not downloading

We have a SAP application for official use wherein all the documents are uploaded and saved in a server and from where it can be downloaded by anyone after logging in the server with his/her user ID. ...
8
votes
5answers
16k views

In unix/linux, what is the proc directory for? why does it exists?

In unix/linux, what is the proc directory for? why does it exists? What can I use it for (if not just for the system)?
13
votes
3answers
4k views

max files per directory in ext4

I manage an application that contains a filestore in which all the files are stored with the filenames equal to their md5 sums. All files are stored in one directory. Currently there are thousands, ...
3
votes
2answers
835 views

Linux disk usage analyser that acts like symlinks are real files

I am using git-annex, an extension to the DVCS git, which is designed for handling large files. It makes heavy use of symlinks. The actual large files are moved to the .git/annex directory and the ...
0
votes
0answers
16 views

Put “.nfs” files created by NFS client in another location?

The setup is a Linux machine that mounts a filesystem over NFS. There is a process that needs to recursively remove directories on the NFS filesystem and ensure the directories are successfully ...
0
votes
1answer
22 views

Empty file shrinks after creating FS

I have a problem with my Server which freaks me out. I want to create a empty file and mount the file afterwards as a loop device. So I try this: dd if=/dev/zero of=/tmp/loop.img bs=1024k count=10 ...
1
vote
1answer
54 views

MHDDFS randomly breaks

I am using MHDDFS to pool a bunch of large disks together into a single filesystem that I can easily share across a network. For some reason every now and then the virtual filesystem seems to fall ...
9
votes
2answers
16k views

How long should resize2fs take on a 1TB partition?

I've got a new computer at the university and almost set up everything for myself on it when I've noticed that the previous user of the machine used a huge 1TB ext3 partition only. I usually keep ...
2
votes
2answers
2k views

Linux-on-Linux KVM: Which filesystem should I use for guest and host?

I'm in the process on playing around with KVM and setting up a linux on a linux-server, so I can reboot the (guest)server encrypt the rootFS of the guest without having to do initramfs-tricks to get ...
6
votes
5answers
31k views

How to extend an ext4 partition and filesystem?

I have a 400GB disk with a 320GB ext4 partition. I would like to grow the ext4 partition to use the left space (80GB of free space). +--------------------------------+--------+ | ext4 ...
1
vote
2answers
30 views

Windows network folder directory list inconsistent when viewed from two different client machines

I am on a corporate network using Windows. There is a network share provided by a NetApp appliance. When I log on to two different machines and view the network drive, I see inconsistent directory ...
0
votes
1answer
7 views

AVHDX internal format for use with TestDisk

I can't seem to find any info about this. What is a HyperV differential AVHDX file format internally like, for the purpose of forensic recovery? That is: Is it just straight blocks, like dd would ...
1
vote
1answer
60 views

What is dd if=/dev/zero of=/EMPTY bs=1M

Often times I see this command for use when creating a Vagrant box sudo dd if=/dev/zero of=/EMPTY bs=1M To me it seams that it is copying a lot of NULL characters into a file named EMPTY at the FS ...
0
votes
1answer
31 views

Unable to mount fs, disk slice corrupted

please can someone help me with this issue. Now when i started sun server - it run on sunfire t100 and os od solaris 5.10, is display this: checking ufs filesystems /dev/rdsk/c0t0d0s7: BAD SUPERBLOCK ...
0
votes
1answer
95 views

SSD caching using bcache or dm-cache on kernel 2.6.32-042stab104.1

I'm looking to use bcache or dm-cache with the latest OpenVZ kernel (2.6.32-042stab104.1) on CentOS 6. Unfortunately, dm-cache and bcache are part of kernel 3.10, but I know the OpenVZ kernel has a ...
3
votes
5answers
2k views

Linux truncate file

Here's a simple one. How do I truncate an existing file in linux? That is, how do I empty the contents of the file but keep the file. I can always delete the file then touch it but I was wondering if ...
1
vote
3answers
109 views

How to see what Windows registry and file system changes happened after a software install?

I'm solving a problem - I'm installing software on Windows and it makes the system unstable for some reason. Windows starts crashing soon after. I want to know what changes it made to the registry and ...
-2
votes
1answer
28 views

How to migrate /var back into the main partition [duplicate]

I have two harddisks, mounted on / and /var I need to migrate the /var partition back into the / partition. What are the steps required to do this?
0
votes
2answers
52 views

using powershell ; from a given location a of folder i want to validate and show the number of specific filetypes respective folder

Using powershell from a given location a of folder I want to validate and show the number of specific filetypes respective folder. I tried using the command to count the number of files in a folder I ...
15
votes
4answers
693 views

Ensuring a repeatable directory ordering in linux

I run a hosted continuous integration company, and we run our customers' code on Linux. Each time we run the code, we run it in a separate virtual machine. A frequent problem that arises is that a ...
2
votes
1answer
3k views

resize2fs get status after ssh connection interrupted

I lost SSH connection after I executed a resize2fs command on my drive /dev/md0. Is there a way, now that I've restablished a connection, to check if the resize2fs is still running? And the status?
1
vote
1answer
33 views

sFTP users permissions to overwrite/edit over root owned files

This is related to Give SFTP users and Apache write permissions on same folders So, I am using ACLs to give write permissions over /var/www. It works perfectly when developer login users upload new ...
2
votes
2answers
177 views

HFS theory: What else is there to a system other than a root filesystem?

I'm grokking the HFS linux standard documentation, and I can't move beyond this concept. The concept I don't get can be demonstrated by the following quote: The contents of the root filesystem ...
0
votes
0answers
66 views

HYPER-V Cluster W2012R2 Can't delete VHDX on CSV

I'm working on a Windows 2012 R2 Hyper-v. I've just done an EXPORT of a Virtual Machine to a CSV Volume to import later. But I hanve't performed the import, and when I went to delete the exported ...
8
votes
2answers
554 views

Why “lsmod | wc -l” not equal “ls /sys/module | wc -l”

Why do these two commands return different results? lsmod | wc -l 100 ls /sys/module | wc -l 138
5
votes
2answers
3k views

Linux: Case-INSENSITIVE Filesystem

What methods are there to make the Linux filesystem case-INSENSITIVE ? I have asp.net applications developed on Windows, but there are always issues with capitalization/spelling on mono when putting ...
0
votes
3answers
105 views

How to find which folder is eating space fast? [duplicate]

I am running Linux server, we using this server as a samba share drive. From yesterday suddenly, one of the share drive size getting increasing (~ 100 MB every ten min). There are too many folders and ...
0
votes
1answer
35 views

Multiple lvms or one large lvm

Say you have a server that has two VGs (base and sys) and base is the standard partitions (root, var, etc.) and sys would be application specific partitions. I can't find any real documentation for ...