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13
votes
5answers
1k views

Do journaling filesystems guarantee against corruption after a power failure?

I am asking this question on behalf of another user who raised the issue in the Ubuntu chat room. Do journaling filesystems guarantee that no corruption will occur if a power failure occurs? If this ...
1
vote
1answer
227 views

why kjournald uses writes so much?

Total DISK READ: 1056.26 K/s | Total DISK WRITE: 9.20 M/s TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND 1055 be/4 root 0.00 B 11.64 M 0.00 % 1.99 % ...
1
vote
1answer
613 views

Which drive had a “journal commit I/O error”?

I received a message: kernel:[123456.789012] journal commit I/O error Which disk drive had the journal error?
2
votes
1answer
71 views

To use -c0 -io in file-systems with journal

I've several partitions with EXT4. Now, I would want if it makes sense to use tune2fs with flags -c0 (max-mount-counts) and -i0 (interval-between-checks) in the partitions with a journal file-system ...
0
votes
2answers
441 views

Keep ext4 journal on another system, how much space would be necessary?

I'm going to move journal to another partition, but I don't know how to correctly caculate the size needed for journal? I'm running ext4 file system with 15GB capacity.
1
vote
1answer
3k views

disabling journal vs data=writeback in ext4 file system

What is the difference between disabling journal on ext4 file system using: tune2fs -O ^has_journal /dev/sda1 and using data=writeback when mounting? I thought ext4 - journal = ext2. means when we ...
9
votes
4answers
2k views

Is there a file search engine like “Everything” in Linux?

On Windows there a nice file search engine called Everything, which is (unlike find) very fast and (unlike locate) always returns up to date results. AFAIK it works by filling a database from the ...
2
votes
2answers
2k views

huge .sujournal file on FreeBSD

I am running out of space and when I checked, I found that I have # pwd /usr # ls -l .sujournal -r-------- 1 root wheel 33554432 Dec 31 1969 .sujournal I wanted to ask should/can I remove it? ...
1
vote
1answer
168 views

With full data journaling, why does data appear in the directory immediately?

I've got a question regarding full data journaling on ext3 filesystems. The man page states the following: data=journal All data is committed into the journal prior to being written into the main ...
5
votes
3answers
216 views

Is ext2 suitable for daily use on a desktop or laptop?

Is a journaling filesystem needed in today's desktop world? A good OS doesn't kernel panic every month, and if we are using a laptop, then there aren't any power outages, so why shouldn't we use ...