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Questions tagged [xfs]

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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How do I force a Samsung 870 QVO drive to flush its SLC cache?

I have 16 Samsung 870 QVO 8TB drives in mdraid 0 (striped) with XFS on top. Rocky Linux 8. Mixed read/write load, read volume over 100x write. Since so little is written I thought I could use these ...
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14 votes
2 answers
1k views

Unable to mount an XFS filesystem from Linux RAID6 array ("Log inconsistent")

First time poster - my apologies if I don't get the etiquette correct. I have a ~200TB RAID6 array with 30 disks and I'm unable to mount it - I just get the message: mount /dev/md125 /export/models ...
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1 answer
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inodes & read only bind mount

I'm using xfs filesystem, speaking about inodes topic have a question: does RO bind mount points consumes inodes? The information is the same, strictly speaking; because the binds mounts point to a ...
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0 votes
1 answer
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Very big device in Centos

I have older VM (Centos7) where I have many disks. Now it is 36 vmdk (22TB). I wanted extend one virtual disk to 2400GB and create new partition for LVM (3th on disk). But after I create partion I see ...
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Is possible to change metadata of XFS system to another disk (such SSD)

I've a system in VPS with a big XFS. Now I have the possibility to add an SSD device to that VPS. Is it possible to change the meta-data destination from partition formatted as SSD to SSD partition to ...
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is the PERC controller limited to 1M of stripe size?

I have a dell powerdge linux (CentosOS8) server with a perc h740p controller and I am testing different strip/chunk sizes for a 10+2 RAID6 array of disks. For what I understood after spending days ...
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xfs_repair runs instantly, surely this should take some time to run?

I'm trying to troubleshoot some issues with multiple database engines crashing and logs suggesting corruption while reading from disk, so I'm running xfs_repair on a 2TB NVMe which contains the files. ...
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NFS mounted XFS file systems not visible using xfs_quota

With CentOS7, I made the leap to XFS (from ext4) and since then I have been unable to query quotas on NFS Clients via the quota or xfs_quota commands. The xfs_quota command also does not report any ...
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File system to maximize utilizable space on a drive

I'm trying to fit as many 108 GB files on a 16 TB as possible. If I format the drive for ext4 with default options I can fit 138 files on it. But if I do mkfs.ext4 -m 0 -T largefile4 /dev/xxx 146 ...
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XFS (dm-11): writeback error on sector

I am continously getting the following error : XFS (dm-11): writeback error on sector xxx I can't find how to fix the issue neither what is causing it. My environnent: an ovirt (4.3.8) cluster, with ...
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2 answers
471 views

Increase memory usage on NFS Server

I'm producing data (100GB files) that are finally copied to a server through NFS v4.2, on a 10Gb network. These files are stored on many HDDs, with XFS formatting (one copy per target drive). When the ...
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2 answers
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Cannot resize XFS partition after volume increase

I have increased the size of my volume from 8GB to 16GB. After resizing the volume, I would like to expand the partition to take on the additional space. However, this operation is failing with data ...
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1 answer
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How do I maximize nvme raid0(md) performance (in linux)?

Nvme raid0 read(and write) performance is sometimes worse than the performance of one individual underlying drive. hdparm -t /dev/md0 : Timing buffered disk reads: 7054 MB in 3.00 seconds = ...
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xfs superblock corrupted after power cut

Like others before me the superbock on my xfs drive has become corrupted. I've tried xfs_repair and xfs_repair -L to restore the drive but both report back the same result: Phase 1 - find and verify ...
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1 vote
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High avgqu-sz & utilisation on madadm RAID 0 in AWS EC2 I3.8x large instance

I have an AWS EC2 i3.8xlarge with 4x1.9TB ephemeral storage volumes tied in mdadm RAID-0 (Yes, RAID 0) with XFS file system mounted using noatime and inode64 options. I am running an IO intensive ...
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1 vote
1 answer
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Issue with removing LV disk space that was extended from another disk

I have a redhat server with two disks 100gb and 500gb. The 500GB disk was unused, however I then used it to extend the /var LV. The filesystem on all mountpoints are xfs and you actually can't reduce ...
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Ways to make a backup on RAID5 filesystem (mdadm) with many files

I have a NAS containing RAID5 array (5.4TB in total, 2.9TB in use) using mdadm. Now I plan to modify some hardware of it (especially SATA controller), so I'd like to have a whole backup of this RAID5 ...
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1 answer
175 views

`fio` does not timeout even specified?

# fio --name=random-write --directory=/mnt/test/ --ioengine=posixaio --rw=randwrite -bs=4k --numjobs=1 --size=4g -iodepth=1 -runtime=600 --time_based --end_fsync=1 random-write: (g=0): rw=randwrite, ...
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2 votes
2 answers
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Failed to Partition a 10TB HD?

Before I tried to partition a 10TB HDD again, parted saw it: # parted /dev/sdb (parted) print list Model: ATA ST10000NM0016-1T (scsi) Disk /dev/...
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1 vote
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Convert ext4/xfs file system to btrfs with minimal application impact

I'm trying to find a way to convert the file system of app servers (some of which run ext4 and some xfs) to btrfs. Preferably, I'd like to do this without needing to turn off the services. So far I've ...
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1 vote
1 answer
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I can't mount with mount -a for error wrong fs type, bad option, bad superblock but I can mount manually

I usually use UUID to mount my devices, because I use a lot of external ones and so I control it better. But when I want to mount partitions formatted with XFS I have problems Generally this works for ...
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1 answer
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Does LXC support XFS filesystem?

I am working on my local system and I want to run both docker and LXC containers. Docker provides storage options that only works with XFS to limit the storage volume inside containers. But that ...
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3 votes
0 answers
560 views

xfs: can't read superblock

I get the following error: [root@mediaserv ~]# mount /dev/mapper/media1 /media mount: /media: can't read superblock on /dev/mapper/media1. This is Fedora 33. I have a RAID5 of 8x 8TB WD Red drives ...
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2 votes
3 answers
610 views

How to force re-read XFS file system contents

In our computing cluster we have set up a simple but quite effective way of serving data to computing nodes. The storage system provides to luns that are merged with LVS and on top of that we build a ...
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No partition table required?

I was surprised to find two of my environments had different setups. One has a DOS partition style, while the other does not appear to have any kind of table defined whatsoever. I'm sort of familiar ...
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0 votes
1 answer
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between ex4 and XFS which is better for large small files [closed]

Between EXT4 and XFS which file system is better when an application uses multiple threads to read/write large amount of small files on a SSD. From what I read In general, Ext3 or Ext4 is better if ...
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2 votes
0 answers
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df differs from du a lot, nfsd service seems matter

I know there have been a lot of discussion on the df/du discrepancy topic. But here I’d post a special issue and ask for some hints. here is the detail( with a hardware raid5 with 6 sas disks) system ...
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2 votes
2 answers
135 views

AWS XFS performance issues. Stripped setup vs single disk setup

I wanted to share an issue (I guess I may be misunderstanding some concepts) that I'm facing with some benchmarks I'm doing to XFS setups, as we are going to recently migrate a service to a new ...
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1 vote
0 answers
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XFS only using first allocation group despite inode64 mount option

Background: we've been seeing incredibly slow performance allocating files, on a system that creates many small files on a 25T disk. We found from http://xfs.9218.n7.nabble.com/1B-files-slow-file-...
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0 votes
1 answer
260 views

Cannot mount XFS volume on Hetzner vps

After a volume a resizing i cannot mount an attached volume on Hetzner cloud vps root@MONITOR-BACKUP /mnt # mount -o discard,defaults /dev/disk/by-id/scsi-0HC_Volume_1552045 /mnt/BACKUP-STORAGE mount: ...
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0 votes
1 answer
48 views

Expand XFS encrypted block device with no LVM

I need to expand my LUKS encrypted XFS volume but I'm not sure where to start as this is about a non-LVM device, its a simple block storage from a cloud provider that I extended from 150GB to 200GB ......
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5 votes
4 answers
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How to change the file system of a partition in a RAID 1?

First, sorry if the question has already been asked and correctly answered, I did not find anything that satisfies me. I rent a dedicated machine in a datacenter, the machine run with a Debian 10 and ...
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2 votes
0 answers
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Move xfs journal from internal to external without losing data

I have a big XFS filesystem containing about 3TB of data. This runs on some network device at our virtual server provider. We created it with the default settings, thus using an internal journal. ...
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0 votes
0 answers
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XFS inodes not neessarily unique?

(Debian 10.5, kernel 4.19.132-1 ) My understanding is that inodes are unique on a given filesystem, and indeed if we look at man inode we get the following assertion: Each file in a filesystem has ...
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1 vote
1 answer
3k views

How to cleanly kill a stuck docker service?

Working with a Centos7 with 3.10 kernel, docker 19.03.12. Eventually, one of the docker images got full and wrote the entire /var/ mount to 100%, crashing both the docker service and the running ...
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0 answers
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RHEL + OS with XFS file system while adding additional partition with diff definition

We have the following disk - sda ( in server production - very important server ) sda is the disk of the OS ( rhel 7.2 ) , and file system is xfs sda is physical disk Xfs created with - mkfs.xfs -f -...
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-1 votes
2 answers
241 views

Docker installation on RHEL 7.2 and file system requirement

We have old RHEL machine version 7.2 And we prepare to install docker service on this server The problem is that server's filesystem was created with ftype=0 parametre and docker requires ftype=1 One ...
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3 votes
1 answer
679 views

Confirming parameters for XFS filesystem and LVM volume striping over 2 ADAPT (RAID6-like) volumes

We are setting up an ADAPT0 (RAID-60-like) configuration for a file server. We have six disk pools. Each consists of 14 disks and is set up using ADAPT. According to Dell's official white paper, ADAPT ...
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3 votes
2 answers
695 views

How to best use large NVMe array for VMWare Datastore

I recently acquired a Supermicro SYS-1029P-N32R with 16 14TB NVMe SSD's (Micron 9300 Pro) at work. We have 100 gigabit networking on the box to our VMWare hosts. We've tried using FreeNAS to host ZFS ...
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0 votes
0 answers
39 views

Folder in Ubuntu Became a File and the other Show Question Mark in Owner/Group

I encountered a very weird issue, appreciate if someone could help. One of my folder stored in a LVM2 XFS filesystem (mdadm RAID6), silently became a file and a folder showing question mark on both ...
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2 votes
1 answer
373 views

Check XFS project quota on NFS client

I am implementing project quotas on a file server (Centos 7.8.2003) that has data volumne formatted using XFS. File access to this server will occur using NFS. I know how to check user quotas on the ...
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4 votes
2 answers
3k views

Linux XFS partition could not be mounted (can't read superblock) due to suddenly power shutdown, xfs_repair: read failed: Input/output error

After suddenly shutdown, my home directory which is a XFS partition could not be mounted and I can login to system by my account. But I can login with root account (because root and home directories ...
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2 votes
1 answer
587 views

Why does active-active configuration degrade performance compared to failover?

We are setting up the new storage for an HPC compute cluster that we are managing for applied statistics, bioinformatics, and genomics. Configuration We have the main enclosure with a Dell EMC ME4084 (...
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1 vote
1 answer
1k views

I can mount a samba share from windows and see what it holds but cannot create files or directories

[Newbie warning! this is my first time setting up Samba. I'm almost there but...] Server is running Centos 8, Samba V4.10.4 Shared filesystem is xfs, I have enabled extended attributes and tested ...
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1 vote
1 answer
102 views

Organizing millions of files in ftp with btrfs file system

I have FTP that should handle about 1 million files if not more. file sizes are variable between 1MB to 100Mb but the have average of 30MB. We have about 1000 resources and hundreds of thousand site ...
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4 votes
0 answers
151 views

MDADM Raid10 event mismatch after restart

I made a raid10 with 8x8TB drives the file system on it is XFS. I never had any issue with it. The raid is configured as near2 and internal bitmap. The drives are connected to a LSI-9211-8i in HBA ...
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1 vote
1 answer
2k views

extending a LVM partition > 2TB on Fedora 31 to use all unallocated disk space

We have a Dell R420 with the Perc H710 Mini that was configured with 3 1TB drives in a RAID 5. I added another 1TB drive and thanks to a little help from the Dell discussion board, the RAID 5 ...
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1 vote
2 answers
262 views

repair file system by edit the fstab file

is it possible to run xfs repair by re-edit the fstab file? /dev/mapper/vg-linux_root / xfs defaults 0 0 UUID=7de1dc5c-b605-4a6f-bdf1-f1e869f6ffb9 /boot xfs ...
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1 vote
1 answer
541 views

After reboot of CentOS Linux release 7.7.1908 (Core)server ,it stopped xfs support

After reboot of CentOS Linux release 7.7.1908 (Core)server ,it stopped xfs support and throws below error mount: unknown filesystem type 'xfs' #lsmod | grep xfs is not showing anything and #...
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42 votes
5 answers
60k views

Ext4 vs. XFS vs. Btrfs vs. ZFS for NAS [closed]

My use case: I have Ubuntu Server 18.04 installed on an M.2 SSD. I have a 4TB HDD I want to add as storage. Since it's mostly for large media files and backups, it won't be written to very often. ...
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