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Unknown on Saturday, October 23, 2010
There are several libraries that help you to disable fsync temporarily so your hard disk doesn't always spin up to save your notebooks battery. Of course that is not very flexible as you need to preload the libraries meaning you have to restart the programs.
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Diposkan oleh
Unknown on Friday, April 24, 2009
Diposkan oleh
Unknown on Monday, February 23, 2009
Check the output of mdadm. It tells you the block size in chunks, which you will need.
mke2fs -j -E stride=64,stripe-width=320 -L LABEL /dev/md0
In my example the chunks size is 64k. I use 6 disks, out of which 5 carry data, so the stripe-width is chunks*5=320. See man mke2fs for more.
I always add this for even more speed:
tune2fs -o journal_data_writeback -O dir_index /dev/md0
More about → Ext3 Partition Optimized for RAID5
Diposkan oleh
Unknown on Sunday, November 23, 2008
lsof -p `pifof process`
provides an exhaustive list including libraries.
ls -l /proc/`pidof process`/fd
provides a list of only the "plain" files.
More about → List Open Files of a Process
Diposkan oleh
Unknown on Sunday, July 13, 2008
ext3undel finally delivers what was long thought to be pretty much impossible, even by the developers who wrote ext3: You can undelete files which were deleted in an ext3 filesystem.
The funny part is that many people are not yet aware of this and you may thus still make interesting findings in partition images, e.g. the popular VMware images.
Check out the
article at Linux.com for more.
More about → Undelete Files on the ext3 filesystem - Finally!
Diposkan oleh
Unknown on Wednesday, June 4, 2008
If you want to make sure a file or directory structure can not be modified by anyone, this command helps:
sudo chattr +i
