The filesystems tag has no wiki summary.
-1
votes
1answer
27 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
...
-1
votes
0answers
21 views
mac time code of btime?
I have a file system which I thought was ext2 but there is btime metadata for the files. btime is supposed to mean birth time of the file. I also read that this btime was introduced in ext4. Does this ...
-4
votes
1answer
36 views
CentOS 5/Linux UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY
Getting an error in a VM Boot that says
Checking filesystems
/dev/VolGroup00/LogVol00 contains a file system with errors, check forced
/dev/VolGroup00/LogVol00:
Inodes that were part of a corrupted ...
-1
votes
1answer
29 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 ...
1
vote
1answer
34 views
Relatime vs noatime for flash drives
I am running a web server off of a SheevaPlug, and the OS and system are stored on an SD card with an ext3 file system. I know that atime is a major source of writes that wear out flash memory.
...
0
votes
2answers
50 views
Removing write-protected'ness of a file system from terminal in Linux
I recently saw that my 2GB SanDisk microSD card was mounting as read-only filesystem on my linux (Ubuntu 10.10). I tried changing its property through nautilus, but it went in vain.
Also I tried ...
-2
votes
2answers
90 views
How can I “trick” an ext3 directory to store more than 32000 sub dirs
The easy answers are 1.) move to ext4 and/or 2.) "shard" the directory somehow - by placing them in sub folders either numbered or lettered.
These changes won't be easy to make though so I'm looking ...
1
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2answers
48 views
Directly Formatting a Device on a Linux System
I've just 'inherited' a system that consists of a bunch of Linux servers (running Ubuntu, but probably not important) that uses iSCSI devices. These show up as /dev/sdb, /dev/sdc etc. when you log ...
8
votes
1answer
172 views
Why is /dev/urandom only readable by root since Ubuntu 12.04 and how can I “fix” it?
I used to work with Ubuntu 10.04 templates on a lot of servers.
Since changing to 12.04 I have problems that I've now isolated.
The /dev/urandom device is only accessible to root.
This caused SSL ...
2
votes
2answers
65 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 ...
0
votes
2answers
35 views
Does this exist? Create virtual file shares with arbitrary folders
I'd like to be able to advertise shares to the network that are in some sense virtual, in that they don't correspond directly to physical folders on a filesystem.
The application would be to offer a ...
1
vote
1answer
44 views
Is there an ideal filesystem type for the MySQL database directory (/var/lib/mysql)?
I've used ext3 and ext4 in the past with no issues, but I've seen a lot of installations on XFS as well. What are the advantages of XFS vs ext4 vs ?? with respect to the /var/lib/mysql directory?
...
3
votes
2answers
84 views
How can I get CentOS 5 to recognize an increase in drive space on my VM?
VMWare / CentOS 5.x
My CentOS VM system was running low on space so a VMWare admin increased the storage space allocated to the VM. After powering off the system and restarting it, the OS is still ...
0
votes
5answers
61 views
“System File Checker” (sfc-like) for Linux
I am trying to locate a tool, not unlike either the "sfc" command on Windows or the "sysck" command on AIX, which can verify that the file contents, ownerships and permissions are correct. The ...
1
vote
3answers
131 views
Linux: Trigger a real-time alarm on a low disk space condition
I want to subscribe a daemon, inotify-style, to receive a notification when free space on a given filesystem dips below a certain percentage. Is this possible?
1
vote
0answers
54 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 ...
3
votes
1answer
49 views
What is launching all of these rpc.statd processes?
On of our servers -- running CentOS 6 x86_64 -- we're seeing a lot unusual activity with rpc.statd. We have rpc.statd configured to run on a static port via /etc/sysconfig/nfs:
MOUNTD_PORT=892
...
0
votes
1answer
51 views
How much resources should backup tools be using? ( issues with clBackup )
My hosting provider makes backups of our servers using a tool called clBackup which pushes files over the network. Below is one ps output we took and reported to our provider:
top - 10:06:24 up 25 ...
1
vote
1answer
28 views
How to monitor I/O for a specific file
In windows server 2008 it is possible to see the top files which consume the most I/O on the filesystem using standard system tools.
How to setup the same counters, but in reverse - I would like to ...
0
votes
2answers
72 views
Cutting power to linux box. prevent filesystem checking on reboot (and hopefully damage!)
I have a small linux box with a dedicated task of reading sensor data and comparing values against a read only (ie i won't write stuff to it, but haven't done anything to make it actually readonly) ...
1
vote
4answers
199 views
EXT4 “No space left on device (28)” incorrect
I have been through the other questions/answers regarding inode usage, mounting issues and others but none of those questions seem to apply...
df -h
/dev/sdd1 931G 100G 785G 12% ...
-4
votes
3answers
51 views
Linux: Same files different size
I've 2 configuration files in linux. One file size is 177bytes and 2nd one is 183 bytes.
Checked size by following command:
wc -c Config
both files have 100% same text, same name (different ...
0
votes
0answers
120 views
Can't mount logical volume, RAID/MD/LVM problems
I have a file server with 48 2TB HDDs split across 2x 3ware 9650SE-24M8 RAID cards. Both cards have 24 drives in RAID 1+0. MD softraid is setup in raid 0 with the two RAID 1+0s making RAID 100. LVM2 ...
2
votes
3answers
85 views
Possible to per file encrypt cloud storage?
With the many cloud storage providers that there now exist, would it be possible to add a layer of encryption before the files are saved?
It would be possible to make an encrypted partition in a ...
1
vote
2answers
48 views
what's the best method for transferring directory from remote host?
I have a directory that's about 5G big. I'm about to run a series of tests but I want to know if I can exclude any tool or method from it:
We are going to
a - tar the whole directory first
tar cp ...
1
vote
1answer
30 views
Speeding up directory creation / file linking
I'm using rsnapshot for backups. Currently that means every time an update runs (even without any data difference) I get a copy of ~100M of only the directory structure + inode list. The files are ...
0
votes
1answer
41 views
Files being rolled back on server 2008 R2
I've got a weird situation occurring on my dev server. Randomly, and for no reason that I can see, files are being rolled back to an earlier version!
This has happened twice now - the first time I ...
3
votes
2answers
59 views
File creation time on Windows vs Linux
We have following setup:
mountserver - debian linux
fileserver1 - Windows 2008 R2 Storage server
fileserver2 - Celerra NS20 exporting CIFS share
workstation - windows 7 with mapped drive to share ...
0
votes
1answer
28 views
PureFTPd - is it possible to limit file access for virtual users?
I have a website for a little group of people, where each of them can login using their username and password. Since we'd like to share some files, I am looking for a FTP server, which would allow ...
2
votes
1answer
74 views
Recursively apply ACL permissions on Mac OS X (Server)?
For years I've used the strong-armed-duo of these two suckers...
sudo chmod +a "localadmin allow read,write,append,execute,\
delete,readattr,writeattr,readextattr,writeextattr,\
...
3
votes
3answers
54 views
Linux app config location
Where is the appropriate place in the standard linux hierarchy to put config files for my apps?
3
votes
3answers
136 views
CentOS disable filesystem check: superblock last mount time is in the future
I'm persistently getting the "Superblock last mount time is in the future" error when booting CentOS 6. I've seen other questions which ask how to resolve this error, but I know exactly why it's ...
2
votes
1answer
64 views
Only allow root to change filesystem
The VPS I manage uses a simple hard link rsync archive daily backup system saved to a loop file. This is great, because each backup only takes up as much space as what has changed each day, and all ...
6
votes
6answers
333 views
Dedicated server automatic backup solution
I have a dedicated Ubuntu web server in a cloud environment, and I am looking for a nice way to do automated backups.
I would like to backup some directories with web apps, and all my MySql ...
0
votes
1answer
93 views
Why do I get xfs_freeze “Operation not supported” error with ec2-consistent-snapshot? Debian Squeeze w/ext4 filesystem
I'm running the following command:
[root@somehost ~]# ec2-consistent-snapshot --aws-credentials-file '/some/dir/file' --mysql --mysql-socket '/var/run/mysqld/mysql.sock' --mysql-username 'backup' ...
0
votes
1answer
107 views
Does uwsgi workers share a common memory ? [ With Nginx ]
I have configured my Nginx with Django uwsgi.
When the django server starts, it reads a 5MB file from the hard-disk.
Now,
Without Nginx with Django default server
python manage.py runserver => Runs ...
-1
votes
1answer
54 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 ...
1
vote
0answers
148 views
How to create btrfs RAID-1 filesystem (assertion error in mkfs.btrfs)?
I tried to make a btrfs RAID-1 filesystem in "degraded mode" by following the btrfs UseCases instructions but hit a fatal assertion error. Why is this failing, and is there any workaround?
The ...
-1
votes
2answers
34 views
Filesystem check on ext3, debian
How can I perform a filesystem check on ext3 partition on linux? I am looking for a solution that check every file on the filesystem that is it accessible.
UPDATE:
I would run it on a server without ...
1
vote
1answer
108 views
Solaris Administration Web GUI?
I recently installed Solaris 11 x86 text install ( http://www.oracle.com/technetwork/server-storage/solaris11/downloads/index.html?ssSourceSiteId=ocomen) to be used as a file server running ZFS.
I ...
1
vote
1answer
112 views
Formatting drive as XFS on Centos 5.5
We've got a Centos 5.5 server with 2 array's. One is standard ext3 mounted as /, the other is an SSD array that we are attempting to format as XFS before moving our MySQL database to it.
I've ...
1
vote
1answer
72 views
Error while mounting reiser4 filesystem
I'm using Debian 6.03 (2.6.32-5-amd64) with LVM configured. For testing I created testfs logical volume and formatted it in reiser4 filesystem. But when I try:
# mount /dev/lv-group/testfs /mnt
it ...
-2
votes
1answer
58 views
Best way to structure filesystem for website to prevent direct access to files?
I have the following structure for my filesystem
public_html
css/
doc/
img/
js/
lib/
*.php
private_html
miscellaneous/
The document root in for my website is set in ...
0
votes
3answers
42 views
finding out the device name for a given file
I was trying to figure this out but found myself clueless: How can I figure out the name of the device (e.g. /dev/sdb2) for a given file/inode? e.g.
[root@serv07 /]# ls -i /etc/passwd
38357228 ...
0
votes
1answer
91 views
Trade reliability for speed in a slow filesystem
On my box running Ubuntu Server 11.10 I have a rather slow soft RAID6 array on four USB sticks (and no other means for persistent storage).
I want a faster filesystem on that box.
I'm OK if I'd lose ...
0
votes
2answers
162 views
ext4 filesystem broken
I have a synology nas with an internal hdd (a 2TB wd ears). This drive has SMART errors.
I took the drive and build it in a external USB case. Then i booted Linux mint and tried to mount the data ...
0
votes
2answers
153 views
Hyper-V Ubuntu 10.04, Filesystem suddenly becomes Read-Only?
We are running a Ubuntu 10.04 VM on a Hyper-V system,
The VM is dedicated to running one of our web applications.
We have enabled the Hyper-V drivers in /etc/initramfs-tools/modules like so:
...
2
votes
4answers
109 views
Recommended networked file system for web servers?
If I have two web servers, what would the best way to keep their files in sync?
Unfortunately the sites themselves cannot be altered significantly.
Most of them are Wordpress based, but there are ...
5
votes
4answers
184 views
Calculating total file size by extension in shell
We have a set of directories containing lucene indexes. Each index is a mix of different file types (differentiated by extension) eg:
0/index/_2z6.frq
0/index/_2z6.fnm
..
1/index/_1sq.frq
...
1
vote
1answer
118 views
prevent filesystem from entering read-only mode
I have found that my server's filesystem is continuously entering read-only mode. There have been some issues with the raid1 array, but I have removed the bad disk from the array. However, it is ...
