Question marks: Difference between revisions
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(asdf) |
(asdf) |
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Line 19: | Line 19: | ||
ls /nfs/scratch/A/xyz/protomer/I | ls /nfs/scratch/A/xyz/protomer/I | ||
again, worked | again, worked | ||
= and this = | |||
lvscan | |||
pvscan | |||
vgchange -a y | |||
mount -t ext4 /dev/vg_system/lv_root /mnt/resh5 | |||
finally, reboot gimel if nothing else works. | |||
[[Category:Sysadmin]] | [[Category:Sysadmin]] |
Latest revision as of 20:36, 22 July 2016
Here is how to clear question marks in ls -l following a disk crash
- To free pagecache
echo 1 > /proc/sys/vm/drop_caches
- To free dentries and inodes
echo 2 > /proc/sys/vm/drop_caches
- To free pagecache, dentries and inodes
echo 3 > /proc/sys/vm/drop_caches
$ sudo -i # echo 1 > /proc/sys/vm/drop_caches
... wait ... try
ls /nfs/scratch/A/xyz/protomer/I.. still didn't work
..wait ... try
ls /nfs/scratch/A/xyz/protomer/I
again, worked
and this
lvscan pvscan vgchange -a y mount -t ext4 /dev/vg_system/lv_root /mnt/resh5
finally, reboot gimel if nothing else works.