Journaling is how file-systems save metadata so that data can be recovered in the event of corruption.

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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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132 views

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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17 views

VVV file size at 1GB - can it be reduced?

I am using VVV to catalog my backup drives. http://vvvapp.sourceforge.net/ After about 10 drives (2TB each) my VVV file size has grown to 1GB. This seems enormous to me, I don't know the way it ...
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1answer
95 views

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 ...
2
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1answer
640 views

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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2answers
105 views

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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4answers
101 views

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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307 views

Wear leveling, Compression and Journaling Filesystem for SD cards [closed]

I'm looking for the ideal filesystem to place in my SD card holding the root of the operating system. The FS must support journaling in order to provide better data safeness; compression is also ...
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2answers
1k views

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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1answer
321 views

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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286 views

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 ...
0
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1answer
123 views

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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5answers
649 views

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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1answer
128 views

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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2answers
5k views

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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3answers
12k views

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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1answer
426 views

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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1answer
304 views

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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1answer
874 views

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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1answer
190 views

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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2answers
828 views

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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2answers
3k views

Will these instructions work when turning of journaling on an ext4 SSD?

I have an Acer Aspire One with an SSD for storage. I recently installed Ubuntu on it and chose ext4 for my filesystem. Then I read that journaling on an SSD isn't the best idea, so I will try to ...
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2answers
320 views

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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1answer
2k views
2
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1answer
113 views

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, ...