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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What ZFS file structure to use for zfs-root linux system?

In ZFS, you can build your filesystem hiearchy to include different fs-attributes per filesystem. For insance, compression in one area, no-exec/suid in others, noatime. For example, a HOWTO for ...
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27 views

Grow ZFS pool to use the whole disk

What's the (if there's any) way to grow a zfs pool that only uses a disk partially to use the whole disk? Background is, zfs is used here on a virtual machine and the Virtual machines disk has been ...
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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 ...
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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 ...
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377 views

What is a fast, efficient method for threading rsync

I have a single root directory (on a NAS) that I need to backup to another server. The hierarchy of the directory is several layers deep and a majority of the data is composed of extremely large ...
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2k views

rsnapshot frequently ext3-fs error: “ext3_lookup: deleted inode referenced:”

I've having following problem frequently on our backupserver. I'll try to explain the issue in the hope somebody could clarify why and how to fix it Setup details We have a DELL r200 server attached ...
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2k views

How can I move s3 objects >5gb from one bucket to another?

Objects larger than 5GB are supported with multi-part uploading. We have 5gb+ files in one bucket already that I'd like to move to another, under the same AWS account. When I issue the command using ...
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2k views

Recovering a VHD after resizing it using VBoxManage

I am using VirtualBox 4.1.18 and had a virtual machine running Windows 8 RC with a single VHD, which was initially sized at 25GB (too small!). After installing the OS and some applications I ran out ...
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32 views

Disk and Inode quota both exceeded; cannot delete anything

(I am using a UFS file system on a Solaris server. I have root privileges on the machine, but not on the machine that contains the disc in question.) I am receiving a "Disc quota exceeded" error when ...
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26 views

filesystems for scratch devices on solaris 11?

Can anyone suggest what filesystems are suitible for scratch disks? note majority of io will be via mmap. By scratch i mean scalable to many terabytes, but for short lived data that can be ...
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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 ...
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498 views

Circular directory structure

I'm having an issue with a circular directory structure warning produced by du and find on my CentOS servers. I have two FreeNAS servers exporting several datasets via NFS which are mounted on the ...
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90 views

Alternative to ReiserFS for storing many small files in one block?

I know that ReiserFS is able to store multiple small files in a single block, and at one time was recommended for use with s3backer because of that feature, as fewer blocks to store on S3 mean lower ...
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57 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 ...
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0answers
107 views

HPOM Java GUI, multiple users connecting to different servers from Citrix sessions on the same server possible?

I have an app (HPOM Java GUI) running on a 2008 R2 Xenapp 6 box that employs client certificates for encrypting connections to the HPOM server. I have 2 different sets of users who will use this app ...
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141 views

Can't mount read-write iSCSI with MTU=9000

I'm attempting to connect my desktop (running debian 7) to a QNAP NAS (running QTS 4.1.1) using iSCSI with an MTU=9000. The network infrastructure consists of a cat5e crossover cable between the ...
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456 views

Directory index full, is this fsck result OK?

I found these in my /var/log/messages: kernel: EXT4-fs warning (device md2): ext4_dx_add_entry: Directory index full! kernel: EXT4-fs warning (device md2): ext4_dx_add_entry: Directory index full! ...
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388 views

Service running over network : Windows cannot access the file for one of the following reasons…appears once per day, How to troubleshoot?

Our prod. setup is one web server, one sql server and one application server. On application server we have services installed which located one the sql server. We never had problems accessing the ...
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86 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 ...
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204 views

How do I speed up “ls -l” on a network file system (NFS)?

I have a NFS volume mounted in the following way: theHostname.com:/path/on/theHostname on /local/path type nfs (rw,nosuid,addr=10.0.0.54) The /local/path directory has 30_000 files. When I do a ls ...
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241 views

Can't mount ecrytpfs as a non-root user on Red Hat

I'm trying to mount a ecryptfs volume on Red Hat as a regular user. ecryptfs-utils is installed from source (repos only contain old versions). Mounting as root works normally, but trying with a ...
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553 views

Slow network file access on windows 2008

We have a really poor business application that uses access databases (I know, fail!) as its back end. There are lots of access db files it uses, all about 4mb in size. If I copy the files locally ...
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90 views

Dynamically allocating limited disk space per user on NTFS

I'm designing a module that needs to allocate dynamic, limited disk space per user. Based on a large NTFS filesystem, I want each user to tell me how much space he want's extended to him, and then ...
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360 views

Ubuntu 10.04 Server stuck at grub prompt

I have a virtualized server running 10.04 LTS that is no longer booting. We had a number of issues with our SAN that abruptly disconnected the storage from the virtual machine infrastructure and ...
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196 views

Slow Client to Server transfer speeds… Fast Client to Client

Client : Windows 7 x32 | Dell Latitude E6510, transferring to another identical machine over the network.. 120mbs. Transferring to any server (2003 server, 2008, 2008R2, or VM's) I can not get more ...
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1k views

network-mapped file system drops to read-only mid-stream, buffer I/O error with device mapper

Under linux 2.6 (CentOS 5.3 actually), I have a file system that works okay for a few minutes, then drops to read-only mode, while I am trying to read/write data to it. It is an ext3 file system ...
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111 views

Effective backup and archive strategy for database and linked files

I am using Postgres to store a variety of application data for a webapp. Part of the application involves storing and retrieving user uploaded files. I am storing the files in the filesystem with ...
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8 views

What happens when I press Ctrl+C when e2fsck running?

What happens when I press Ctrl+C when e2fsck running ? will it go to command prompt ? or it will reboot & then the server again goes to fsck ? Reason Why I want ? I want the server to up ...
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12 views

Windows Object Access Audit vs File Properties “Accessed” Date/Time

I'm attempting to audit all attempted access to a specific executable on a Windows 2008 R2 system, and have turned on success and failure auditing for all subcategories in "Object Access" in Advanced ...
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6 views

Which version of OCFS2 is Required for Global Heartbeat

I am running Ubuntu 14.04 (Trusty) and have several iSCSI LUN's setup with the OCFS2 filesystem and local heartbeat. Since I have several OCFS2 formatted LUN's in my luster, I thought it would be ...
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29 views

Troubleshooting with kernel call trace and underlying root cause with XFS

How to determine the root underlying cause of an error when looking through a Linux kernel call trace, and in which order should I read the call trace? From my understanding, the call trace should ...
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6 views

Samba as a layer above custom storage

Does Samba allow to use some sort of custom storage? I would like to serve virtual files with my application and to use Samba for serving them to (Windows) clients. Is it possible? I know there are ...
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43 views

Can't mount BTRFS with write permissions. Btrfs check crashes (Core dumped)

I was using btrfs filesystem for some time on one of my external drives mainly to test deduplication and everything was working just fine. Unfortunately yesterday when I mounted the partition I ...
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42 views

change file system from ext3 to ext4 effict on MySQL

I have a situation where MySQL was installed in Linux with a ext3 file system. One table (InnoDB) reached the maximum size allowed for ext3 (2 TB) , insert statement gave "The table 'foo' is full". I ...
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13 views

What will happen if i delete the Sys Folder on Debian Wheezy

it might be a noobie question, but i'm interesting in what the result would be (without trying). I was restoring my filesystem of my Debian Wheezy from a backup.tgz. According to some tutorials like ...
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35 views

Cannot remove stale file on btrfs

I have a btrfs filesystem which in one directory has the following entry: -????????? ? ? ? ? ? 1448367601.M899489P12992.mst19,S=8958,W=9072:2,S I cannot remove this file, every operation ...
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35 views

glusterfs backup - how to migrate image to new server?

I am running glusterfs on a 3 node prod server with thinly provisioned LVM-Volumes. My goal is to automate a backup process that is based on gluster snapshots. The idea is basically to run a shell ...
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9 views

Get direct block addresses - Sleuth kit - XEN

I am using sleuth kit library in order to write an introspection tool for XEN hypervisor and my question is if we have the inode number of a file on a disk [ guest VM - ext4 filesystem], for example ...
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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. ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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126 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, ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...