XFS is a file system originally for SGI's IRIX OS, but is now available for Linux. It is known for handling large files and large file systems well, one of the few Linux file systems that can handle partitions over 16.8TB.

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After xfs repair, only files from root user are accessible

After a power failure during server installation of CentOS, the external storage system that contains user data could not be mounted due to failed superblocks. I performed an xfs_repair on the ...
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549 views

XFS Project Quotas on Debian Squeeze

I'm trying to set up project quotas with XFS on a debian box and run in some problems when defining the quotas i get back an error cannot set limits: function not implemented Am i missing something? ...
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XFS/EXT4: Why is actual file size on disk larger than apparent size? Clarification

On a CentOS 7.1.1503 (3.10.0-229.el7.x86_64) system running KVM/qemu on an XFS filesystem, I'm attempting to work out what specifically is adding additional space to a VM diskimage file. $ ls -ls ...
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54 views

XFS: Internal error XFS_WANT_CORRUPTED_GOTO

After what appears to be a power outage on my standby postgres database, i'm receiving the error: XFS: Internal error XFS_WANT_CORRUPTED_GOTO after the system reboots as well as postgres error log ...
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54 views

7Zip extraction on linux is so slow

Extracting 7zip with many small files on linux xfs, extraction speed is so slow. My Test System Environment. System1 : 2vCore/4GB CentOS 6.5 64bit guest on XenServer. System2 : 2vCore/4GB Windows ...
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54 views

how do I clone a disk that is represented by a vmdk file?

I have VirtualBox installed on Windows 8.1. I have created a CentOS 7 virtual machine that loads the contents of a detached hard drive that is connected to the PC via a SATA Wire. The virtual ...
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35 views

Recreating XFS project quota information

We recreated a fileserver, which had an XFS filesystem using project quotas residing on a SAN. Unfortunately, we had forgotten to backup /etc/projects and /etc/projid on the server before ...
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128 views

Data recovery for XFS partition

I want to recover data from a XFS partition. It seems that I need to xfs_repair the partition but I am not sure I would lose the data, so I prefer to ask to experts. I run a Virtual Box Linux Mint. ...
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662 views

Unable to create files on large XFS filesystem

We have a Linux server with a 4 TB filesystem, which is used to store subversion repositories. There are many repositories, several of which have been in use for several years. The disk was ...
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27 views

change xfs quota types without reboot?

CentOS 6.3 Hi, I have a production NFS file server on which I'm changing the xfs quota type from 'quota' to 'quota,pqnoenforce'. I've made the change in /etc/fstab, remounted and mount shows the new ...
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1answer
413 views

mkfs fails to create a new xfs partition

I am using Ubuntu LTS 12.04 server installed as a virtual machine on VMware Workstation. Recently, I extended the logical disk. I used sudo fdisk /dev/sdb command and i created an extended disk that ...
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2answers
248 views

CEPH's raw space usage

I can't understand ceph raw space usage. I have 14 HDD (14 OSD's) on 7 servers , 3TB each HDD ~ 42 TB raw space in total. ceph -s osdmap e4055: 14 osds: 14 up, 14 in pgmap v8073416: ...
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39 views

cant turn on mysqld. I moved mysql to an XFS directory and pointed it there

hey guys hopefully someone has the answers for this but these are my errors ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) and in my ...
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1answer
506 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 ...
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3answers
182 views

How can I verify an XFS dump backup

I recently had a hard drive crash. Now I'm setting up incremental backups using XFS' dump tool. The setup I have is to make the dumps into files (rather than to a block device), my plan is to do a l0 ...
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77 views

Rotating incremental backups using xfsdump

With rsync I can create a set of incremental backups, and delete backups older than a certain age. Then the oldest backup becomes the new base backup, essentially. Is this possible with xfsdump? Once ...
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14 views

find space used by journal files

Is there any way to find the disk space used by journal. Running xfs on host and ext4 on guest. How can we see the space occupied by journals of these filesystem.is it possible.
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1answer
3k views

XFS slow performance on LVM'ed RAID, faster when RAW or non-LVM

I have a weird issue with a server I am setting up. It's for a filesharing-type website, so fast IO and plenty of capacity are the requirements. OS is CentOS 6.4 64-bit The server in question is a HP ...
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36 views

Will 2 heavy, simultaneous IO operations result in fragmentation?

I'm using Ubuntu 14.04 to run a web/DB server. Disks are in a RAID6 set, using XFS. I'm somewhat new to XFS. Suppose I have 2 heavy IO operations. In my example: Reindexing a 400 GB database. ...
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29k views

ZFS vs XFS

We're considering building a ~16TB storage server. At the moment, we're considering both ZFS and XFS as filesystem. What are the advantages, disadvantages? What do we have to look for? Is there a ...
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3answers
152 views

Is is possible to live sync two network drives?

I have one NAS in India (active) and while other in US(passive). I want to sync the US NAS with that of India in real time (with permissible latency) I tried using RAID1 for this purpose, but I ...
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246 views

Does XFS support default quotas?

We need to set a default quota for all users. From what I can see from man 8 xfs_quota, you can only set quotas for individual users. I need to set a quota that applies to everyone without having to ...
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215 views

What is the default journal commit interval of XFS?

Ext3 and Ext4 have a default journal commit interval of 5 seconds, which can be changed with the 'commit' mount option. I can verify that my VirtualBox host indeed flashes its disk icon after 5 ...
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1answer
877 views

Cause of page fragmentation on “large” server with xfs, 20 disks and Ceph

Any insight from someone with a bit of experience in the linux IO system would be helpful. Here is my story: Recently brought up a cluster of six Dell PowerEdge rx720xds to serve files via Ceph. ...
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177 views

Which file system best handle multiple, concurrent write sessions [closed]

Which file system best handle multiple, concurrent write sessions Which file system can handle more concurrent write sessions; let’s say 32 write sessions? The file system has to handle 32 ...
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1answer
70 views

Detect faulty drive in RAID 10 array

I've been told that I can only verify my HW RAID array is working perfectly with KVM. However, I want to be automatically notified when there is a problem by my server. Is there a way via SSH (that ...
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1answer
194 views

Recreate XFS Partition with Existing Filesystem

I have a CentOS server with two RAID arrays. The OS array and a DATA array. Long story short, recently had tons of trouble with the OS and had to reload CentOS (was 5.7 and went to 6.5). Everything ...
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1answer
794 views

Debian package performance on XFS, btrfs, ext3, ext4

I did 4 clean installations of debian 6 and measured time of installing some average virtual package. FS options are default. time apt-get install build-essential I got very strange results ...
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2answers
3k views

XFS: No space left on device

I am using XFS on small HDD (/dev/sdb1, less than 150G) and storing many small files (-32KB). df -h and -i show that it has available space. # df -hv Filesystem Size Used Avail Use% ...
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3k views

Shrinking or removing home partition in CentOS 7 installation [closed]

I made the mistake of creating a home partition that fills up all my disk space, and it's formatted in XFS, which to my knowledge isn't shrinkable. Since I have no use for the home partition anyway ...
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2answers
4k views

Resize XFS on CentOS after expand Raid

I have a 16Tb partition on Raid 6 array using xfs file system. # df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/sdc1 xfs 15T 7.4T 7.2T 51% /backup I reconstructed ...
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86 views

xfs - command limit not found

I'd like to set xfs quota on my CentOS 6 server, so I installed xfsprogs package. However it says command limit not found as shown below. [root@myserver ~]# xfs_quota xfs_quota> print Filesystem ...
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647 views

how to disable journaling on xfs filesystem [closed]

How do I disable journaling on xfs file system. I tried tune2fs to disable, it didnt help. Does xfs has different tools/procedure to do so ? tune2fs -o journal_data_writeback ...
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2answers
409 views

Correct procedure for mounting xfs filesystem to use quotas

I am using a Hetzner box on which I have configured my partitions to use LVM, and have set /home as a xfs filesystem. I use Webmin to administer the box which is running Debian 7.6, and have the ...
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2k views

Trying to determine the correct number of XFS allocation groups for postgresql server on Linux

I am running a postgres 8.4.5 server on the linux 2.6.33.7 kernel on an 8 disk raid array with an LSI controller. Most of the tables are around 1GB or less. I know that XFS uses allocation groups ...
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138 views

Possible to put larger disks in LSI arrays?

I have a couple of these LSI arrays LSI Model: 0834 LSI Class: 3600 LSI Name: LSI Engenio LSI product name: 1932 LSI Product codename: Mary Jane Enclosure name: Shea (DM1300) End of Life: 31-Dec-2010 ...
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119 views

Speed up xfsrestore

I administer a development environment with shared (nfs and samba) home directories which are heavily used and pretty large. I use a 2TB partition for around 50 users. I know this is generous but I'd ...
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104 views

How can I recalculate XFS projects quota?

I have a XFS formatted disk and several projects quota in it. # xfs_quota -xc 'report -phN' foo 20K 22.9G 22.9G 00 [------] bar 396K 5.7G 5.7G 00 [------] buz 12K 22.9G 22.9G 00 ...
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3k views

How to Increase the Size of an XFS File System?

I just created an Amazon AWS EC2 instance running RHEL7: [root@ip-10-184-161-46 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.0 (Maipo) [root@ip-10-184-161-46 ~]# And even ...
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3answers
10k views

changing filesystem format from xfs to ext4 without losing data

I have a fresh Lucid Lynx (Ubuntu 10.04) running on a laptop. where I defined the filesystems as: mount point / on ext4 (46 Gb) mount point /home on jfs (63 GB) swap as 3 Gb I left the machine ...
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2answers
3k views

HP DL380p Gen8 (p420i controller) I/O oddity on XFS partitions

On DL380p gen8 servers using XFS on top of LVM on top of raid 1+0 with 6 disks, an identical workload results in a ten-fold increase in disk writes on RHEL 6 compared to RHEL 5, making applications ...
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113 views

/proc/slabinfo: Input/output error

I am using Ubuntu 12.04 and XFS (kernel 3.2.0-38-generic). Because XFS inode cache use too much memory, I want to limit the number of objects used to cache XFS inode. According to the manual, I can ...
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1answer
2k views

mkfs.xfs: libxfs_device_zero write failed: Input/output error

I can't find a way to create a filesystem on one of my disks. first i'm geting the following output: [root@~]# mkfs.xfs /dev/sdb1 mkfs.xfs: /dev/sdb1 appears to contain a partition table (dos). ...
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106 views

Which network file systems can deal with huge amount of subdirectories?

I need a network file system that can be accessed from multiple machines as the same time and that it will still be able to keep like 100.000 subdirectories of a single directory. In case someone is ...
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652 views

Optimization XFS on Linux guest in Hyper-V (VHDX)

In our company we're using Hyper-V (Windows Server 2012) hypervisor and VM to organize our in-company services in our data-center. I am supposed to set up Ubuntu 12.04 LTS guest for our main database ...
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179 views

Need help recovering RAID 6 array

My CentOS 6.5 server had its primary drive fail the other day. Our hosting company replaced the primary drive and reinstalled the OS. The system is up and running, but the 15TB of RAID6 storage isn't ...
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335 views

Access xfs quota info from NFS client

I've got an xfs filesystem (on a Centos 6.4 server) mounted via NFS on a client server (Centos 6.3). I can't seem to access the quota info from the client. It simply returns nothing for xfs_quota -c ...
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3answers
2k views

Linux (NAS) Permissions problem (Permission Denied)

This is probably easier to show than to explain... -bash-3.2$ id uid=501(admin) gid=503(admin) groups=100(users),501(admins),503(admin) -bash-3.2$ groups admin users admins -bash-3.2$ ls -l total 8 ...
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433 views

NFS server unresponsive to clients - with processes 'migration' and 'xfssyncd' consuming unusual cpu

I have a CentOS 6.4 fileserver running NFS 4, serving a couple of XFS filesystems. There are a few dozen clients connected to it. Today it slowed to a crawl for the clients - the clients would hang or ...
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2answers
14k views

How to recover XFS file system with “superblock read failed”

I have a disk from a Buffalo LinkStation that has an XFS partition on it that I cannot mount. Plugging the disk into an SATA->USB caddy on an Ubuntu box. I get the following: $ sudo fdisk -l ...