Questions tagged [xfs]
Questions about XFS filesystem, utilities and other situations where XFS filesystem is relevant.
184
questions
0
votes
0answers
6 views
xfs uses more space than it has stored in files
Why do I see more "used" space in df than in du?
$ grep bk0092 /etc/fstab
UUID=c614803f-49da-4eda-aeb1-c9b3e0056e73 /repo/bk0092 xfs defaults 0 0
$ df -h /repo/bk0092/
Filesystem ...
0
votes
1answer
54 views
rhel + how to increase sdb1 after increasing sdb disk
on our rhel 7.2 VM server we increased the sdb disk ( not LVM ) from 200 to 220G , as the following ( sdb is with xfs fs )
sdb 8:16 0 200G 0 disk
└─sdb1 8:17 0 200G ...
0
votes
0answers
33 views
lsof not working in emergency mode?
I have Linux Centos 7.
My server keeps booting in emergency mode:
xfs (dm-0): failed to recover intents
journalctl gives me: Failed to mount /sysroot
Mounting /dev/dm-0 fails to mount.
I'm trying to ...
0
votes
0answers
25 views
How to rebuild original file structure from the “Lost” folders that show in UFS Explorer Professional Recovery
"Documents" folder had been deleted on CentOS which used LUKS & XFS. UFS Explorer Professional Recovery has been able to recover what it seems all documents that were inside this folder ...
2
votes
2answers
270 views
How is the theoretical maximum file size on filesystems like XFS calculcated?
Documentation for XFS claims its current theoretical maximum file size is 8 exbibytes - 1 byte. However, I am wondering how this calculation was computed? I cannot seem to find discussion of this ...
0
votes
1answer
28 views
Mount points overlapped
I have a VM with RHEL 6 where I have several disks with their respective mount points, they are in xfs and each one has a label which is declared in the fstab for each mount point
It happens that the ...
1
vote
1answer
51 views
Deduplicating Files while moving them to XFS
I've got a folder on a non reflink-capable file system (ext4) which I know contains many files with identical blocks in them.
I'd like to move/copy that directory to an XFS file system whilst ...
0
votes
0answers
41 views
XFS and zero bytes files
I am trying to establish what has happened to my data.
Before I go into the history, can anyone explan the discrepency between these two outputs;
# du --si /var/media/footage/k0/09/99/88
1.6G /var/...
0
votes
1answer
66 views
lsblk + file system type not appears from lsblk
we have VM machine with disks as sdb sdc sdd ,,, etc
we create ext4 file system on sdb disk as the following
mkfs.ext4 -j -m 0 /dev/sdb -F
mke2fs 1.42.9 (28-Dec-2013)
Discarding device blocks: done
...
0
votes
0answers
31 views
The last mounted timestamp of the XFS
It seems that the XFS superblock data structure inside the xfs_sb.h does not include its last mounted timestamp record.
So Why the designer and developer of the XFS would "discard" this ...
0
votes
0answers
11 views
Recover data after accidental “zpool create” on the wrong drive
I created a Zpool on top of an external drive that had an XFS partition full of data. I think the partition table got written over as it now shows a ZFS partition on the drive.
Is there a way to ...
0
votes
1answer
38 views
Is there a file system out there that supports custom file size limit?
I'm aware that EXT4 has a max_dir_size_kb mount option to set up the max size of each directory. It doesn't have a similar option to specify the max size of individual files, though.
Is somebody aware ...
0
votes
0answers
22 views
Missed RAM in Linux
I have two servers (Oracle Linux 7, x86_64, ) with "missed" RAM.
uname -r returns 4.14.35-1902.10.2.1.el7uek.x86_64
I've read where is my memory in linux? and already checked memory by the ...
1
vote
0answers
136 views
Extremely poor performance for ZFS 4k randwrite on NVMe compared to XFS?
I've been a fan of ZFS for a long time and I use it on my home NAS, but in testing its viability for production workloads I've found that its performance is inconceivably bad compared with XFS on the ...
0
votes
2answers
37 views
How can I extend lvm+xfs with no free partitions
I'm stuck with a centos 7 vm with 1 disk that has 4 primary partitions created... and now I need to add more space:
It currently looks like this - simplified:
mount
/dev/mapper/centos-root on / type ...
0
votes
0answers
278 views
mkfs complain about disk is apparently in use by the system
on our rhel server we want to re-create ext4 filesystem as
[root@worker ~]# mkfs.ext4 -j -m 0 /dev/sdd -F
mke2fs 1.42.9 (28-Dec-2013)
/dev/sdd is apparently in use by the system; will not make a ...
3
votes
2answers
260 views
How to check disk usage for folders containing reflinked files on XFS?
XFS supports copy on write (CoW), so it is not entirely clear what du will say if some of the bytes are shared across files. I'd like to find a way to check how much disk space a folder uses, not ...
0
votes
0answers
38 views
Preventing file & directory creation on a new XFS filesystem
I have created a 40MB disk and formatted it with XFS using a 2k Block size. Now I am trying to mount the file system so that no files or directories can be created -
not even by the root account, ...
0
votes
0answers
14 views
optimal disk configuration for a disk with only inodes and hardlinks
I would like to use the filesystem as a reference tracker.
I work on a system with lots of jobs where each job has a directory and every once in a while we clean up old job directories, in the job ...
0
votes
3answers
419 views
CentOS 8 Increase disk partition and /var file system while system is running
I have /var file system part of /dev/sdc1 disk. I need to increase this disk size from 25GB to 60GB. I have increase the disk size. Now I am looking for the correct steps to increase the sdc1 ...
0
votes
1answer
665 views
Why can't we reduce XFS filesystem?
I know that we can't reduce XFS file-system and it's not supported. However I would like to know the reason why xfs don't support shrink.
0
votes
0answers
51 views
Full system partition, moving system folders and editing fstab
I have two partition one with system and other partition with home and data. I found this question
that have solution to my problem, but I'm not sure how exactly to apply it to my system, what I'm ...
2
votes
1answer
251 views
Can I merge an XFS partition with another XFS partition?
I am using an SSD where I have 3 partitions:
$ lsblk /dev/sda
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 111.8G 0 disk
├─sda1 8:1 0 2M 0 part
├─sda2 8:2 0 108G ...
0
votes
1answer
423 views
Backup and restore of root file system (Ubuntu 20.04)
It seems I will have to move my root FS from XFS v4 to v5 because there seems to be a move to remove v4 support from Linux kernel. I can use tar to backup and restore files but I am not sure if that ...
1
vote
0answers
1k views
XFS metadata I/O error
Something odd for a couple of days. I've just noticed a lot of error messages in dmesg.
[11:34:02 2020] XFS (dm-5): metadata I/O error: block 0xf577b6e0 ("xfs_trans_read_buf_map") error 5 ...
0
votes
0answers
999 views
Comparison of File system for 500 million of 50KB files for best write performance
linux kernel 5 (ubuntu 18.04)
Use case is writing 100K files (50KB) in bursts, file system half 500million of files (per folder can be a small number if needed) and deleting old files all of the time.
...
0
votes
1answer
39 views
Are XFS quotas and linux quotas part of the same thing?
I see there are two ways to create quotas, there is xfs_quota and then this suite of utilities like edquota and repquota. It seems all of these utilities can provide inode quotas. How does that tools ...
0
votes
0answers
56 views
Failed command for vdo2?
This was a practice exam question... to create a vdo volume with a logical size of 16GB on a 4GB disk.
So I did the following
vdo create --name=vdo2 --device=/dev/sdc --vdoSlabSize=128M --...
0
votes
1answer
22 views
Fixing xfs fs error lives on home directory
How to fix xfs fs error on home directory as unmount it will get denied/prevented ?
-1
votes
1answer
59 views
Should the storage device be stopped before using xfs_growfs?
My cloud server has an external device formatted as XFS. After expanding the volume, I will need to run the command:
$ sudo xfs_growfs /dev/sdb
Since it is critical for a service to keep writing on ...
0
votes
1answer
3k views
xfs_repair /dev/sdb + could not find valid secondery superblock
we have rhel 7.2 machine , and machine is VM type
since one of the machines disk failure,we performed xfs_repair /dev/sdb ( in single user mode )
finally after 1 hour we get the following message
...
0
votes
1answer
469 views
increase /var partition by adding few disks
Before one year I extend the /var on the redhat 7.x server as the following from 100G to 200G
notes:
a. VG-A is the VG
b. server is VM server
c. file-system is XFS
procedure:
1. pvcreate /dev/sdb
2. ...
1
vote
0answers
51 views
Where can I see the difference in those mounts?
# mount | grep 'rootvg-var\b'
/dev/mapper/rootvg-var on /var type xfs (rw,relatime,seclabel,attr2,inode64,noquota)
/dev/mapper/rootvg-var on /var/lib/docker/containers type xfs (rw,relatime,seclabel,...
1
vote
1answer
2k views
xfs filesystem - changing ftype=0 to ftype=1
I have Centos 7.7 with xfs filesystems where each was created with ftype=0, for example:
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
Is is possible to change/convert it to ftype=...
0
votes
1answer
186 views
XFS space full and also inode got full too? How could this happen?
# df . -i
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/mapper/vgFOO-lv_bar 53136 52857 279 100% /bar
# df . -h
Filesystem Size Used Avail Use% Mounted on
/...
0
votes
0answers
147 views
birth/crtime timestamp is recorded on one xfs but not the other xfs filesystem
Two different xfs filesystems on two different Fedora.
Why one of them records Birth(crtime) in the inode and why the other one doesn't?
How to find the configuration/attribute differences between ...
1
vote
1answer
511 views
Linux I/O Deadlock since Kernel Upgrade
I have been using Linux-Kernel 5.4.35 (and newer versions) after upgrading from 4.19, and ever since that my hpsa md RAID 0 hangs after some days (2-3 Days), RAID changes to read-only/I/O rejected. (...
-1
votes
1answer
53 views
Linux start without mount to /var
after reboot the rhel machine , we noticed that server isn't up
and when access the OS to single user mode we can see that /var not mounted
therefore we perform xfs_repair but its hang for 5 hours
...
0
votes
0answers
174 views
1T USB drive will not accept ext4 or xfs filessystem
I bought two 1T USB drives that I wanted to use for a backup media. They came default with exFAT on them and I can mount them with fuse drivers on Centos. But I would rather use a native filesystem ...
1
vote
0answers
94 views
What is mounted on what with xfs; storage drivers for docker
I have a virtual redhat linux machine, that I am using for Docker. Apparently, I haven't set it properly up for production mode as I am still running the storage mode as a loop-back device with ...
0
votes
0answers
40 views
XFS partition in Volume Group is suddenly showing up as Atari partition
I have a server with a large amount of data stored in an XFS partition within a Volume Group spanning a couple physical drive and numerous segemnts/extents.
Suddenly, in the last couple hours, the XFS ...
1
vote
1answer
2k views
xfs_repair , complain about contains a mounted and writable filesystem
Since we have the following from dmesg
[37785.390633] XFS (dm-2): Metadata corruption detected at xfs_dir3_block_read_verify+0x5e/0x110 [xfs], block 0x7f8af18
[37785.390634] XFS (dm-2): Unmount and ...
1
vote
2answers
888 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 ...
1
vote
0answers
818 views
rhel + Metadata corruption detected at xfs
due of linux electricity failure , our server crashed and reboot
now server is up
but we see the following messages from dmesg
is it mean that OS damaged ?
[33505.670070] XFS (dm-2): Unmount and ...
0
votes
1answer
32 views
Added space to LVM, shows up in Size, but as Used
My root partition is XFS on LVM.
Before I did anything, I had two physical disks which were combined using md as /dev/md126 into a PV. That PV was the only member of a VG centos_x5backup, and there ...
1
vote
0answers
42 views
Is there any tool that can test a potential XFS superblock for validity?
All XFS superblocks start with XFSB. Given a list of potential superblocks, is there any method to test them for validity?
$ sudo grep --byte-offset XFSB -ao /dev/sdb
689569283:XFSB
1114071063:XFSB
...
2
votes
1answer
920 views
Find the filename associated with an inode number on XFS filesystem
We have an inode number that we're trying to associate to an actual file name. The filesystem is XFS. Looking there are examples that purport to be able to accomplish this with xfs_db and/or ...
0
votes
2answers
434 views
How to corrupt xfs/ext4 metadata
I want to develop a system that repairs corrupted xfs/ext4 file system automatically using pxe rescue. To do so, I need to reproduce fs corruption several times during developing. It's nice that ...
1
vote
1answer
282 views
What is the right mkfs cli in order to create xfs file-system on huge disk
We need to create xfs file-system on kafka disk
The special thing about kafka disk is the disk size
kafka disk have 20TB size in our case
I not sure about the following mkfs , but I need advice to ...
6
votes
1answer
1k views
Is there a way to enable reflink on an existing XFS filesystem?
I currently have a 4TB RAID 1 setup on a small, personal Linux server, which is formatted as XFS in LVM. I am interested in enabling the reflink feature of XFS, but I did not do so when I first ...
