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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xfs file system corruption, xfs_repair could not find valid secondary superblock

I am running CentOS 7.1. I have a 1TB drive that is formatted as XFS. After a year of continuous use, I can no longer write to it sudo touch /capture/a.a touch: cannot touch ‘/capture/a.a’: No ...
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1answer
21 views

Dir size increases after rsyncing to a different machine with same configuration

Have a MySQL (percona, 14.14 Distrib 5.6.28-76.1) machine with a 1TB SSD hosting around 712Gb of mysql data. MySQL has 4 databases, with, say database1, taking major space, 656Gb. Lets call this ...
6
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1answer
68 views

Proper way to deal with corrupt XFS filesystems

I recently had an XFS filesystem become corrupt due to a powerfail. (CentOS 7 system). The system wouldn't boot properly. I booted from a rescue cd and tried xfs_repair, it told me to mount the ...
3
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2answers
270 views

Optimizing storage of 10-20 million files on RAID5 (currently using LVM+XFS)

Although I've browsed some of the questions here, I think every situation is different and maybe requires a totally different solution. What I have now: Linux software RAID5 on 4x4TB enterprise HDD ...
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2answers
23 views

blockdev report different blocksize if mounted

I have a proliant running Red Hat 7, with two data disk with raid 1 (hardware raid). I created the file sytem using this command: mkfs.xfs /dev/sdb Default block size for xfs is 4096. So ...
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1answer
29 views

Moving disk space from /home to / on RHEL7.2 with xfs file system

I've setup RHEL7 with default partitioning, and they partitioned it as following: /dev/mapper/rhel-home 100GB /home /dev/mapper/rhel-root 50GB / Both are on xfs filesystem. How can i shift most of ...
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3answers
60 views

How to shrink /home and add more space on CentOS7

CentOS 7 file system is XFS, And resize2fs doesn't work. I need to shrink /home to 400G and add 100G space to /. What should I do? # df -h Filesystem Size Used Avail Use% Mounted on ...
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42 views

Can Btrfs use SSD for metadata and leave bulk data on HDD?

is it possible for Btrfs to use SSD for metadata only & leave bulk data on less costly storage such as HDD? I refered to this page Using_Btrfs_with_Multiple_Devices and can not find a solution. ...
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0answers
25 views

Create xfs system with mfks

I'am following a guide to install Zenoss which asks me to create a xfs system. To do this I need to run the following command: mkfs -t xfs Partition The guide says as follows: 'Replace Partition ...
2
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1answer
135 views

How to investigate high CPU for dmeventd (lvm2 / xfs)

I have three CentOS 7.2.1511 Servers that started showing dmeventd at the top of the cpu utilization (single core). They are running docker and apache mesos. Even when I shutdown docker and mesos ...
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60 views

XFS On VMware VM Fails With Bad Magic Number

I have almost exactly the same problem as described here. I am on RHEL7. 3.10.0-229.4.2.el7.x86_6 Inside vmware VM. file -s /dev/sdb /dev/sdb: LVM2 PV (Linux Logical Volume Manager), UUID: ...
1
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1answer
53 views

Run out of space when copying between similar XFS systems [duplicate]

I have a 4Tb disk with 1 xfs partition (sda1). I wanted to copy almost all the data there (2,8Tb from the 3,6Tb used) into a new disk (sdc1). First I have prepared sdc in the same way sda: parted -l ...
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37 views

unable to mount XFS after rescue

I am facing strange problem with XFS file system. Below is the exact scenario: I'd a corrupt 2 TB disk with XFS (I/O error), so that decide to rescue data from old disk to new disk. I'd run ddrescue ...
3
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1answer
178 views

High load average, but low CPU/IO figures - how to diagnose? (dmesg output included)

We have a Hadoop cluster where arbitrary data nodes will lock up. This is usually pre-ceded by ever-increasing load averages, with CPU and IOwait remaining practically non-existant. The use case for ...
3
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1answer
121 views

Cant enable quotas on XFS file system

I'm trying to enable quotas on Centos 7 I ran yum install quota Edited fstab: /dev/mapper/centos-root / xfs defaults,usrquota,grpquota 0 0 ...
20
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2answers
3k views

Very strange file size (more than 600 PB) on a small filesystem

I had a file on an XFS filesystem which size was about 200 GB. It was a QCOW2 image containing a virtual disk of a KVM-driven virtual machine. Something went wrong (maybe it was some glitch of ...
0
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1answer
45 views

raid0 (soft-RAID using Linux md drivers) hosting XFS: how to repair after replacing bad disk?

So the latest configuration of our Nova compute nodes are using raw /dev/sdX devices (no labels nor partitions) as components for an md0 (raid0) array on which they're hosting an XFS filesystem. When ...
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68 views

Cant change user quota on xfs partition

I cant change user quota even command exit status is 0. Used: xfs_quota -x -c 'limit bsoft=1024m bhard=2048m 56a4d3057ec81767ebe0415b' / Also used webmin interface to update user quota but on ...
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1answer
97 views

Cannot mount XFS partition

I have a XFS partition in one of my HDD partitions. Here's my disks: aksesfarma@elementary-PC:~$ sudo blkid -o list device fs_type label mount point UUID ...
3
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2answers
178 views

Acceptable I/O speeds for 6 x 250GB SSDs in RAID 10

I'm running CentOS 7 (XFS filesystem) on a dell server with a PERC H700 raid controller. Inside this server I have 6 x Samsung 850 Evo 250GB SSDs (yes they are consumer drives however, this is a home ...
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54 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 ...
2
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144 views

Want to understand XFS strangeness

have a XFS partition that I find to act very strangely. It mounts fine under a system but won't mount under others --of which my main system. As I'm new at XFS, I'd love to hear from users more ...
4
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1answer
116 views

rsync (and scp) failing with no space left on XFS device

I have a fresh install of CentOS 7 with a primary partition of 400GB formatted for XFS. Less than one GB is currently in use. I am trying to rsync 65GB of files over and the copy starts failing ...
2
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1answer
99 views

What does sunit=0 and swidth=0 mean for XFS file system?

I created an XFS file system using default parameters at the time of creation of a system. Now looking at the output of xfs_info, it show 0 for the values of sunit and swidth. I can't seem to find ...
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3answers
151 views

Rsync size is difference from source to destination

I'm using rsync with the options -r for recursive -l copy symlinks as symlinks -t preserve modification time -D preserve devices and specials -v verbose --prune-empty-dirs The source FS is ext4 and ...
0
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1answer
18 views

xfsretsore from a zipped image to a unmouted partition

I have a zipped image which I am restoring to a unmounted partition: gunzip -c /mnt/sda3/backup.gz | xfsrestore - /dev/sda7 I get a error: xfsrestore: ERROR: specified destination /dev/sda7 is not ...
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2answers
1k views

Cannot mount XFS - bad superblock

Please bare in mind I am very noob and have not much idea what I am doing. We have a Dell PowerEdge 420 with a 716iS iSCSI raid. The network connect dropped in the middle of disk usage and we are no ...
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1answer
110 views

Disk cache impaction on linux df result

I am having a problem in which casing the df results unreliable. I'm using the xfs files system on sles 11 sp3. Basically there is a big difference (a few GBs) between the free size before and after I ...
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32 views

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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157 views

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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1answer
1k 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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0answers
191 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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1answer
88 views

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

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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1answer
104 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 ...
3
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0answers
308 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. ...
19
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1answer
902 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 ...
3
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2answers
878 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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1answer
68 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 ...
2
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1answer
5k 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
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1answer
172 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 ...
1
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1answer
43 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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3answers
347 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 ...
3
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1answer
434 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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2answers
274 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 ...
13
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1answer
1k 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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1answer
87 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 ...
2
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1answer
331 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
5k 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 ...
0
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3answers
374 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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1answer
123 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 ...