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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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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56 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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30 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 i ...
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84 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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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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53 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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2answers
180 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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101 views

FS for many small files, mostly reads?

I need a direction since all the blogs/benchs seems to contradict. Goal: Having a lot of small files on FS in a directory tree fashion similar to this AB/CD/EF... Two size groups : G1 : 10-20 kB G2 ...
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30 views

Why does xfs_db show ifree=0 but I can still create files?

Recently we ran into a problem with an xfs file system reporting that it had run out of space, even though there was lots of free space left. Because it is a backup volume, we ran into the 5% of space ...
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92 views

remount / move root folder to another partition on centos

We have an EC2/CentOS6 instance with "/" mounted to an EXT4 partition, and now another bigger sized hard disk formatted in XFS attached to the system. Since the former partition for "/" is ...
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87 views

How to get DMAPI support in Samba 4 on Centos 6.4 X86_64

I'm building the latest Samba 4 on Centos 6.4. From running configure a couple of times, I already figured out almost all of the needed packages. Almost, because there is one dependency I cannot ...
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289 views

Using ZFS or XFS on a Xen guest running Linux

Background: I'm investigating the viability of using a filesystem other than ext3/4, with the ability to run snapshots for backup and rollback purposes. The servers under consideration are mailbox ...
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2answers
457 views

Can XFS or GlusterFS replace my ZFS needs?

Right now I have a FreeBSD hosts with ZFS and NFSv4. It is replicated to another FreeBSD box for backup purposes. The ZFS features that are important to me are software RAID6 snapshots, or some ...
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74 views

File corruption on Centos 6.4 KVM VM, ext3 ephemeral drive, not on xfs - why?

First off, let me say I am a software guy, not an admin, so please forgive me if I get terminology wrong. I'm writing software that runs on a Centos 6.4 VM on Openstack Grizzly, running KVM. It has a ...
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4answers
1k views

Cannot install centos 6.4 with XFS

I would like install centos 6.4 and use XFS as filesystem for some partitions in my configuration. But Anaconda don't propose XFS in the filesystem choice. Then I try to install in text mode but in ...
2
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1answer
816 views

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

longtime user of this website, first time poster. 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 ...
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1answer
478 views

XFS Adding Quotas - Skip Quota check on first mount/boot

We run a 14TB XFS fileserver on our cluster and want to add quota support. This is running 3.9.2-1.el6.elrepo.x86_64 kernel under CentOS 6.3 (Final). The issue is when we unmount the XFS RAID, and ...
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295 views

Upgrading server motherboard while maintaining 12 SATA ports

My office has been using a FreeNAS server that was built with desktop hardware. We use it for storing RAW photos (~50mb each). We have 3 workstations that access (browse, retouch, save) the files ...
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1k views

Can't mount XFS partition anymore

I have 9 partitions formatted as XFS on my server. When I try to mount one of them, it fails. The others mount fine. root@fileserver2 # mount | grep xfs | head -1 /dev/sdb1 on /mnt/hdd1 type xfs ...
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1answer
86 views

xfs_growfs error: maximum is 18350080?

I have a 70 GB filesystem mounted from a loopback file that needed more space. I increased the size of the file from 75161928000 to 75200000000 (starting conservative) via sudo truncate -s ...
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170 views

1. XFS: how to find path / directory of inodes 2. XFS in a file -o loop and ddrescue?

how to find the full original file/directory path of some damaged XFS inodes? and how to list the last modified few 10000 inodes (=edited or moved files/directories) rapidly among millions of ...
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374 views

Storing many small files with xattr in XFS and ext4

I have many small files (20 millions) with xattr on XFS drives. The average size of files is around 20KB and the average size of xattr is about 512 bytes. Because I would like to move them to ext4, I ...
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57 views

xfs.image I/O error but harddrive is fine?

Please help to determine, how to may fix this XFS filesystem and whats actually wrong? Thanks! An XFS image runs productive mounted -o loop on debian. a million of files are read every day, only ...
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4answers
375 views

Slower file create on faster server. Why?

I have thwo servers. The old one is 24GB RAM, i7-950 @ 3,0Ghz, 2x 1,5TB SATA HDD (ST31500341AS). The new is 32GB RAM, i7-3770 @ 3,4GHz, 2x 3,0TB SATA HDD (ST3000DM001-9YN166). Now I noiticed, ...
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The XFS filesystem is broken in RHEL/CentOS 6.x - What can I do about it?

Recent versions of RHEL/CentOS (EL6) brought some interesting changes to the XFS filesystem I've depended on heavily for over a decade. I spent part of last summer chasing down an XFS sparse file ...
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1answer
91 views

Setup 1x RAID5 array with multiple LVs and differnt filesystems?

Centos 5.9 - 2.6.18-348.3.1.el5 i686 Raid5 - 4 Disks + 1 Spare (all WD RED 3TB) Does it make sence to create multiple LV within the same VP and configure them as differnt filesystems: Example: LV1: ...
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1answer
112 views

Rsync Backup from XFS to ZFS

I currently have a backup solution in place that uses rsync to backup all out Linux servers from remote sites, to an XFS drive in our HQ. I am now trying to rsync the folder from the XFS drive in our ...
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1answer
1k 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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1answer
267 views

xfs fails with errors on dmesg

I have a strange error on a linux box with xfs, and I don't know how to debug and fix it. Below is an excerpt from dmesg : Info fld=0x17 end_request: I/O error, dev sde, sector 34412208504 sd ...
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2answers
335 views

Filesystem recommendation for 5 TB file storage

I have a locally attached 5 TB RAID6 system (IBM DS3512). It will be used as a storage for large data files that are written in sequential writes, and then read back for processing. Eventually the ...
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1answer
154 views

SLES 11 recommended filesystem

We are upgrading some servers from SLES 10 to SLES 11 and I just saw that ext4 is not supported. Should I move to XFS or keep ext3? I will be moving the programs and databases to a new VM so ...
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169 views

XFS - Force write every n minutes?

I'm running the recently-released Fedora 18, and doing some computationally intensive things with it. The result is... unstable, at best. But! That's about what I expected, or at least not what I'm ...
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119 views

Corrupt XFS header

On my file server I ended up growing the RAID (5) and then I went ahead and deleted and remade the partition holding the XFS filesystem. I used Parted to do this. After parted ran I tried to mount ...
2
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2answers
4k 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 ...
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2answers
316 views

xfs: find files on the first 1 TB

I have been hit by xfs' No space left on device. According to the FAQ: http://xfs.org/index.php/XFS_FAQ#Q:_Why_do_I_receive_No_space_left_on_device_after_xfs_growfs.3F The only way to fix this is ...
2
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1answer
209 views

Restrict file access to append only

I have a directory with log files and I'm putting logs from script launched by users into them. Logging with syslog isn't possible in this case. I want the users to have only write permissions on ...
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1answer
62 views

When I mount an XFS snapshot that was frozen, do I need to unfreeze it?

I'm snapshotting an XFS EBS volume, freezing it first. When I mount the snapshot as a new volume on a different instance will I need to unfreeze the volume before it can be used, or will it not be ...
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1answer
693 views

xfs_repair has been running a day is it actually doing anything?

I am having a problem with my 1 TB XFS LVM logical volume. This formerly resided on a physical volume which developed IO errors, so I used "pvmove" to migrate to a new disk. After the migration I was ...
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78 views

How to repair XFS filesystem with the first sector broken?

I have copy the partition to a file with ddrescue, but the first sector is broken and filled with zeros. I run xfs_repair -f -o force_geometry file.img, after it says "found candidate secondary ...
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2answers
763 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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206 views

Restoring a GPT XFS partition?

I recently added some storage to a RAID array with a single large XFS volume. To expand the volume I normally use parted to remove the partition and then recreate it so that it spans the entire ...
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2answers
1k 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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4answers
437 views

How can I reduce inode utilization on an ext4 filesystem?

Summary of My Need We put a large amount of files on a filesystem for analysis at a later time. We can't control how many files we're going to have, and this one box needs access to all of them. ...
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1answer
121 views

Are there measurable benefits to running XFS on EC2

I am looking at creating a PostgreSQL database image (to run on Amazon EC2) and I have heard good things about XFS. However, since ultimately you are running in a VM, the gain of XFS on EC2 might ...
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1answer
4k views

Recommended filesystem for MySQL (xfs vs ext4)

Setting up a MySQL 5.5 server, and wondering what the recommended filesystem is? ext4 or xfs? Running InnoDB and 40% writes 60% reads. Thanks.
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1answer
350 views

Disabling/Enabling Modules Parameter RHEL

I'm working with kernel module parameters, and I've found myself a bit confused. In particular, I'm attempting to enable posix ACL support for XFS file systems. This requires the XFS module to be ...
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1answer
45 views

xfs incremental backup doesn't fit new disk

I have a 1TB xfs volumne on Amazon EBS, which contains 246GB of incremental backups, created with rsync and hardlinking. I want to copy this to a new, smaller disk. The problem is it doesn't seem to ...
27
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1answer
5k views

Why are my XFS filesystems suddenly consuming more space and full of sparse files?

I've run XFS filesystems as data/growth partitions for nearly 10 years across various Linux servers. I've noticed a strange phenomenon with recent CentOS/RHEL servers running version 6.2+. Stable ...
3
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1answer
130 views

Uneven utilization of disks in xfs-formatted logical volume

We have a backup server with 66TB of available space, set up like so: 12 6TB RAID10 arrays -> 12 PVs -> 1 VG -> 1 LV -> xfs This filesystem is used exclusively for backups (through BackupPC). It ...
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89 views

Better filesystem for ZODB and Plone.app.blob [closed]

I am interested to know which Linux file system is best for hosting Zope's Object Database (Data.fs) and Plone.app.blob (blobstorage). Various reviews from the Internet suggests that XFS is good for ...