Questions tagged [xfs]
Questions about XFS filesystem, utilities and other situations where XFS filesystem is relevant.
83
questions with no upvoted or accepted answers
5
votes
0
answers
273
views
How are XFS deltas for xfsdump -l n calculated?
I have a xfs filesystem with many small and a couple very large files (~100GB), its on a lvm2 volume. I want to do incremental backups from it. Is there any computational overhead when using a tool ...
- 51
4
votes
0
answers
1k
views
When does Linux flush data to the disk?
I know that usually the answer to this question is "when it sees fit", or some other obscure answer. And many times I saw that if the host gets hard booted, some of files that got recently ...
- 5,552
4
votes
0
answers
3k
views
Difference in space reserved for inodes in ext4 and XFS partitions
I am formatting a couple of 60G Logical Volumes (vg01-logs and vg01-monitoring) in one of our servers. These partitions will hold a large number of small files, so I want them with more than the ...
- 5,062
3
votes
0
answers
3k
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 ...
- 31
3
votes
0
answers
1k
views
find inode/file using specific block on running xfs filesystem
I know that block 12024039 is bad on sda1 and I want to find out what file in the xfs filesystem is using that block and is thus corrupt. How do I do that? When I run
xfs_db -f -c 'blockget -b ...
- 284
3
votes
0
answers
882
views
XFS on-disk format upgrade
Is there any other way to upgrade an already formatted xfs v4 on-disk format partition to a xfs v5 without a back up-reformat-restore process? This was a result of creating the partitions using debian ...
3
votes
0
answers
970
views
RAID 6 with XFS dealing with bad sectors
I have 7 2tb hdd in a raid 6 attached to a Adaptec 71685
dmesg message says I have bad sectors
2321236720 2321236728 2321236760 2321236792 2321236824 2321236856
2321236864 2329211680 2329212192 ...
- 182
3
votes
0
answers
4k
views
Unable to mount XFS volume after reboot - unknown filesystem type 'xfs'
I have an aws ec2 instance that's been running Ubuntu 12.04 for a good long while. It has attached to it an EBS volume formatted with xfs. Today after a reboot, I'm unable to mount this volume. ...
- 131
2
votes
0
answers
162
views
copy XFS filesystem to another XFS filesystem on another disk with reflinks
I have a VM with two XFS file systems on two separate virtual disks.
The first XFS is 2.5 TB big and the second one is 1.5 TB big.
The first XFS uses 844 GB storage reported by df -h, but in reality 7....
- 23
2
votes
1
answer
580
views
Is it possible to have the External XFS Journal on a RAM disk?
Oracle suggests to have the external journal on a low latency device.
The default location for an XFS journal is on the same block device as the data. As synchronous metadata writes to the journal ...
- 3,579
2
votes
0
answers
876
views
How do I determine what files are affected by bad blocks on a disk that uses LUKS and XFS?
Here is my setup: no partition, just LUKS1 and then XFS inside that.
To confirm, the disk was set up like so: disk is installed, luksFormat, luksOpen, mkfs.xfs, mount, start using.
First of all, what ...
- 43
2
votes
0
answers
658
views
xfs_quota and quota commands not working for NFS clients
I've been bumping up against this issue for years, but have never been able to find a resolution. Prior to RHEL7 (i.e. RHEL 5, RHEL 6, and CentOS 6), I was able to...
Implement user quotas on my NFS ...
- 23
2
votes
0
answers
952
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 ...
- 161
2
votes
1
answer
451
views
XFS mount at 100% full, how to pinpoint problem
running SLES 11.4 on a server, there are ~5 disks as Raid-5 via LSI megaraid, which provides 2.2 TB of usable space... when creating this it showed up as /dev/sdb and I created one parition as XFS, ...
- 6,647
2
votes
0
answers
2k
views
How to retrieve a testdisk disk image file from an XFS partition?
The previous situation
I had a problem many years ago with an HDD (with a Windows installation and two usual partitions - the boot one and the NTFS one containing the system and the data) with which ...
- 1,425
2
votes
0
answers
547
views
On CentOS 7 allow certain users Read & Write to mounted file systems of different types
I have a query around mounting file systems of differing types in such a way that a selection of users have r/w access to them.
Here's the scenario. I've rebuilt a media server to Centos 7 minimal ...
- 21
2
votes
0
answers
296
views
LUKS cannot be closed on lvm with lvmcache
I have a CENTOS borgbackup server. All transactions are done over SSH, inside a bind-mounted chroot jail. Most of this detail is probably unnecessary, but I thought a little context might help.
I ...
- 31
2
votes
0
answers
363
views
XFS over iSCSI share with cluster; will fencing cause data corruption/loss?
When using XFS on iSCSI share, where HA is enabled, nodes may be fenced by cluster. Will this result in data loss / corruption / etc. ?
2
votes
0
answers
560
views
DMX problem with fonts
I have problem with fonts in xdmx:
I am starting new X
startx -- /usr/bin/X11/Xdmx :1 -display 192.168.0.104:0 -fontpath tcp/192.168.0.102:7100
(II) dmx: Generation: 1
(II) dmx: DMX ...
- 21
2
votes
1
answer
2k
views
Some space mysteriously disapears on XFS filesystems
I have 2 XFS filesystems where space seems to disappear mysteriously.
The system (Debian) was installed many years ago (12 years ago, I think). The 2 XFS filesystems were created at that time. Since ...
- 1,679
1
vote
0
answers
50
views
Parsing xfs_quota -c 'free' output with bash
Is it possible to parse the output of xfs_quota -c "free" /mnt/xfs in a deterministic way? The problem is that depending on the length of the path to the block device mounted on /mnt/xfs its ...
- 959
1
vote
0
answers
2k
views
how to solve `XFS Filesystem has duplicate UUID - can't mount` without reboot?
I use udiskctl to mount my usb disks. From time to time my usb hub has power problem that when I turn on some device using large current, the hub will reset all connections. This results in ...
- 1,296
1
vote
1
answer
325
views
Unable to figure the permissions required by lstat
I am running into this weird permission issue on Debian 10, with lstat call on XFS filesystem. I have been referring to this link to understand how extended ACLs will work
The man page says that ...
- 121
1
vote
0
answers
310
views
can't read superblock on /dev/nvme0n1p1. (xfs)
The Disk Type : xfs
Suddenly we can't access the data from the Hard Disk. We got the following error while trying to mount the disk using this command : mount /dev/nvme0n1p1 /000.
mount: /000: can't ...
- 31
1
vote
0
answers
2k
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 ...
- 13.2k
1
vote
0
answers
130
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,...
- 423
1
vote
1
answer
1k
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. (...
- 11
1
vote
0
answers
250
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 ...
- 111
1
vote
0
answers
1k
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 ...
- 13.2k
1
vote
0
answers
83
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
...
- 30.9k
1
vote
1
answer
685
views
Are XFS volumes conceptually same as linux logical volumes?
According to the Wikipedia page for XFS, the XFS file system supports:
Max. volume size: 8 exbibytes − 1 byte
Max. file size: 8 exbibytes − 1 byte
(Refer to the info-box on right side of the page)...
- 245
1
vote
0
answers
92
views
utimes() and utimensat() syscalls hangs for 90 sec
CentOS 7.6, xfs filesystem:
We observe hanging backup and compile jobs because utimes() and utimensat() syscalls hang on random files for 90 sec. xfs mount options are
rw,relatime,attr2,inode64,...
- 11
1
vote
1
answer
403
views
Safe way of extending xfs partition
I created an xfs partition using fdisk and mkfs.xfs on my 6T hhd. I ended up with only 2T. What is the safest way of expanding the partition to take up all the remaining space without disturbing the ...
1
vote
0
answers
827
views
How to determine free/used space of an unmounted xfs partition?
I can determine an unmounted partition of ext4 with tune2fs, but I don't know how to do it with an xfs partition, I wonder if it's that right:
# blockdev --getsize64 /dev/sdb5
465567744
# blockdev --...
- 4,399
1
vote
1
answer
2k
views
Mounting XFS partition image from xfs_copy
Used xfs_copy to copy a partition of the hard drive of a Fedora 27 server to a file, now trying to mount the file on my Antergos desktop I get:
mount: /mnt/server: wrong fs type, bad option, bad ...
- 11
1
vote
0
answers
1k
views
Mounting a 4tb lvm in Centos 7 keeps saying not enough space on device
I have a Centos 7 vm that won't boot, the journalctl says
*failed to mount /sysroot. Dependency failed for Initrd Root File System. Dependency failed for Reload Configuration from the Real Root *
...
- 11
1
vote
1
answer
173
views
XFS Resize Possible?
Can I dd XFS home to backup drive then nuke home & resize root recreating new XFS home then dd file structure back?!?
Cannot upgrade Mint 17.3 to 18 as not enough room in root.
Would this work ...
- 243
1
vote
0
answers
396
views
Extending XFS filesystem CentOS 7 Google Cloud
I have Googled everything, and literally nothing is working. Here is df -h:
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 10G 7.7G 2.4G 77% /
devtmpfs 103G 0 103G ...
- 163
1
vote
0
answers
3k
views
Unable to mount XFS after rescue, why?
I am facing a strange problem with XFS file system. Below is the exact scenario:
I'd a corrupt 2TB disk with XFS (I/O error), so with that decided to rescue data from old disk to new disk.
I'd run ...
- 23
1
vote
0
answers
407
views
xfs partition table on RAID array corrupt
So, I'm usually fairly knowledgeable, and with google on my side am able to figure things out. This time however, I'm at a loss for figuring out what to do.
background :
I have a server I built, ...
- 11
1
vote
0
answers
273
views
Unmount nested mounts not working after unmounted root of nest
I have a XEN Server, which I can't reboot. My boss has filesystems mounted as such strange way:
/mnt/hda1/hda2
Then he unmounted them as such
umount /mnt/hda1/
Now he can't unmount hda2 anymore. ...
user46399
1
vote
0
answers
725
views
How is default readahead value determined
I have two different devices running XFS and the default readahead value set differs between the two disks. Why is that ? How is the default size computed ? Is it device dependent ?
I might also add ...
- 1,006
1
vote
1
answer
3k
views
Why are there so many XFS processes？
My centos7 system has seen many of the following XFS processes viewed using ps aux | wc-l to see about 500 processes， But I don't understand why there are so many XFS processes？
Here's some of them
...
- 11
0
votes
1
answer
20
views
xfs_quota bsoft limit explanation
Using RHEL 8.9, I have xfs_quota applied to each home account folder under /home.
In doing xfs_quota -x -c 'limit bhard=1g ron' /home I can observe for example a cp fail when trying to copy a single ...
- 6,647
0
votes
1
answer
52
views
xfs_quota apply for all users under /home
in RHEL 8.9, I have a 100gb XFS formatted /home partition; all local user accounts in /etc/passwd have their home directories under /home. And all user accounts primary gid is and will always be 100 {...
- 6,647
0
votes
1
answer
57
views
Can the data on corrupt XFS disk be saved?
I have 6 SSD disks (Disk model: Samsung SSD 970 EVO Plus 2TB) equipped on a Linux server (Rocky Linux 9.1). Two m.2 to pcie converter cards are used, one holds 4 disks and the other holds 2. All disks ...
- 1
0
votes
0
answers
50
views
Recovering an XML file on Oracle Linux 8 with LVM and XFS
I have a VM with Oracle Linux 8.8 virtualized on VMware, LVM is used and the format is XFS (v6). If I delete a file, for example xml (in users /home), is there any way to recover it?
Its clear that ...
- 101
0
votes
0
answers
29
views
Recover modified files in xfs filesystem or find out what happened!
I would like to know if there is a way, I could narrow down what happened on our file system that cause over 700 files to be modified at the exact same date and time making the file sizes 0 bytes for ...
- 1
0
votes
0
answers
103
views
Help make sense of xfs_logprint output
I recently came across this thread about recovering file in linux:
Recover deleted files on Linux. After consulting the top answer which describes recovering in the ext file system family, I wanted to ...
0
votes
1
answer
197
views
Is there a case where Applications need to do it's own File corruption checks with file systems like EXT4 and XFS and recent Linux OS like Red-Hat 8
What I presumed is
File systems like EXT4 and XFS. Writes blocks to disk (Could be a Hard Disk or a SSD) along with a checksum.
When Reading back, if checksum fails, read operation will NOT return ...
- 111