School me on server hard drive management. (Hot swap, SATA channels, LVM, backup, etc.)
Reindl Harald
h.reindl at thelounge.net
Thu Sep 29 13:50:24 UTC 2011
Am 29.09.2011 15:46, schrieb linux guy:
>
> Mount point management.
>
> Is there an easy was to know if a disk is mounted and act accordingly or prevent data from being written to a
> mountpoint ? Or to have the mount point disappear when its not mounted ?
>
> Example
>
> Lets say I create a mount point /home/me/myth and that /home/me resides on /dev/sda3.
>
> Lets say that a disk labelled MYTH normally gets mounted there. But lets say that someone accidentally unplugs the
> MYTH disk and thus nothing is mounted. Lets say the myth backend starts recording and in the process writing data
> to /home/me/myth. If MYTH isn't mounted there, then that data is going to get written to the mount point dir, ie
> /dev/sda3.
>
> Is there any way to prevent that ?
/bin/mount $MOUNTPOINT 2> /dev/null > /dev/null
mount | grep $MOUNTPOINT > /dev/null
if [ $? -ne 0 ]
then
echo "DISK NOT MOUNTED"
exit
fi
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