Questions tagged [journaling]
Journaling is how file-systems save metadata so that data can be recovered in the event of corruption.
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How to corrupt Ext4 journal file
For a test on my box, I need to corrupt my Ext4 journal file. Is there a way for this? (not the Ext4 file system, I am looking for it's journal corruption)
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What features of journaling file systems are actually useful? [closed]
Not concerning about permissions, security, seamless usage with different OS. Journaling remains unclear.
Do I need journaling (how exactly will it help)? If yes/no what is the threshold, when I ...
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exFAT external HDD changes 'Last modified' date by one month
I have a 1 TB exFAT external HDD mounted on my Ubuntu 20.04 system and am copying a large assortment of file (photos etc) to it.
After copying, the files seem to come across correctly. File contents, ...
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/var/log/syslog.1 => 60GB | I seem to have stopped the cause, but don't know how to cleanly deal with the size of the logfile
So basically there is a command (gotop-cjbassi) I run continuously for monitoring purposes which started to misbehave badly apparently. After verification, every time it is run, systemd-journald ...
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File systems appropriate for synchronising to flash memory
I want to rsync from an ext4 drive to flash memory. Which filesystem would allow funky file and folder names as well as writing non-regular files? (In my case, when I sync to fat32 rsync skips a bunch ...
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Odd File system disk consumption
I know similar has been asked as I searched and tried to figure as it relates to my system. running Ubuntu 18 and other than some install for PostgreSQL, some recent security updates, etc... my file ...
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How to read "fsutil usn readjournal C:" output
There is a utility that can be run on the Microsoft Windows command line called fsutil. One of the commands that it accepts is fsutil usn readjournal <volume pathname> along with several other ...
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Expand k8s journalctl log output
Using command
journalctl -x kubelet
I get very long, cut lines; how to unwrap them or access k8s log in other way? (adding --all did not work for me)
Example:
-Nov 01 19:56:55 lenovo kubelet[530]:...
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Change the default journal location
I am running ext4 on an ubuntu variant. In an effort to conserve disk writes on a limited ssd I am writing data to a mounted microsd card. Can someone explain how journaling would work in this ...
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Is it possible to tail both file and journalctl using the same console?
I am looking for a solution for tailing not only multiple files in parallel but also the journalctl.
Multitail seems to do a pretty good job but I don't know a way to make it work with journalctl.
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Dangers of deleting C:\$Extend\$UsnJrnl:$J:$DATA
Got a Vista laptop with Wubi Ubuntu installed (read: Ubuntu on virtual disks located on the NTFS partition). I only use Ubuntu, but the disk performance is so poor that I want to switch to a normal ...
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Why I cannot format a microSD to ext4?
I have a Toshiba Class 10 64GB microSD that I want to use in a tablet (Cyanogenmod 11) by formatting it ext4.
So I did the usual thing (under Fedora 20): created a single Linux partition with sfdisk, ...
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Journaled filesystem for virtual machine
I have been doing some virtualization and am now wondering if it is a good idea to use a journalled filesystem inside a virtual machine or not.
Of course a journal makes things a bit slower, but ...
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Why journaling use so much space in mongodb?
I have a mongodb database that uses approximately 1GB of space. I was surprised when my server ran out of space, and then I realized that the journal uses 3GB.
The documentation says that "Once ...
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How to analyse timestamp in ext4 manually?
I am doing research on Ext4 and I believe I understand the fundamentals of Ext4.
Ext4 stores timestamps. In my assignment, I have proposed to analyse the timestamp of Ext4 MANUALLY instead of typing ...
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Reiser4: completely disable journaling
How can journaling be completely disabled in a Reiser4 filesystem?
I don't see relevant options in mkfs.reiser4, nor in documentations.
The goal is to fit the FS into an SD card, where no journal is ...
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Is it safe to disable ext4 journaling on root and home partitions?
On my ArchLinux laptop I have / and an ecryptfs encrypted /home partition formatted with ext4. Both contains importand (backuped) data.
Is it safe to disable ext4 journaling when partitions contains ...
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Linux fine tuning for Vertex 3 SSD
I've been reading about optimizations for SSD disks on Linux, there is lots of info out there although very confusing and most feel outdated so I'd be grateful if someone sheds some light on the ...
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CompactFlash write caching
A well-known characteristic of CompactFlash cards is that they do such things as write-leveling and caching to boost performance and longevity.
These characteristics make them fairly poor choices as ...
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delete files from usb (mac os journle)
I have a flash drive which is formated as mac osx extended journel. It has some data I want to remove some files from the flash drive, I dont have access to Mac OS how can I delete files from my flash ...
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Why does a journal filesystem need to check disk?
After I got the BSOD on my Windows 7 computer, I restarted my computer to find it asking me to do a disk check. I did other things in the meantime but it seemed like it took a few minutes.
If the ...
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How to see recent file changes on ext3 file system?
Looks like I don't understand the journaling facilities of ext3fs.
I use a Linux server system with a lot of other users having sudo rights. The problem is that often config files are getting changed ...
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SSD: NTFS vs EXT4
Always when I read about SSD usage under Linux, the advice is to disable journalling in Ext4 (or use Ext2), since it's too bad for your SSD. But in all articles about SSD tweaks for Windows, I never ...
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Is there a way in Windows 7 to disable "journaling"?
Click for full size
C:\$extend\$Usn.Jrnl:$J:$data
Here is a picture finally. The large strip in the center of the top band is the largest chunk, in the other, grey areas are the various clusters ...
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USN Journal entries 700,000 lines in Notepad - BUILTIN Administrator cannot delete
I don't really understand much, but have been having a LOT of problems. Zero-filling / low-level formatting my hard drive doesn't seem to touch the USN Journal entries on there (I've tried DBAN, ...
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Clearing the NTFS Journals in Vista
I'm using Vista and have several NTFS drives.
Is there any way I can clear the journals and disable further journaling?
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On Mac OS X, how can I disable journaling on shutdown and reenable it on boot?
The why: I want to share a home partition with Ubuntu, but I don't want to give up journaling while booted into Mac OS X (Snow Leopard) if I don't have to.
What I've figured out:
The commands I want ...
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Is it possible to backup to an Airport Disk formatted with journaling?
Is it possible make time machine backups to an disk plugged into an Airport Extreme base station when the disk is formatted as Mac OS Extended Journaled?
I've tried formatting the disk in this way, ...
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Does an external hard drive or USB thumb drive use a journaling file system?
It was said that nowadays, common file systems such as NTFS and HFS+ use a journaling mechanism so that when power is cut out or if there is a power outage, the hard drive is still in good shape and ...
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Filesystem to quickly get recent modifications
I've got relatively big filesystem (ext4) with lots of small files and I'd like to backup it. Making full backups often is not feasible to me so I want to have a way to make differential/incremental ...
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How to disable journaling on an HFS+ HDD in Ubuntu without using a Mac?
How to disable journaling on an HFS+ HDD in Ubuntu without using a Mac?
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How do I look at disk journals under OS X?
About 2000 files just turned up missing on my Mac, with no clues as to where they went or how they were deleted. I have disk journaling enabled, so I'd like to look at the journals. Hopefully, they'...
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