No. New changes will be written to the master volume right away. However, if data is changed that existed before the snapshot was taken, the old data is copied to the snapshot area, and only then the new one is committed to disk (see Copy-on-write). The size you're setting for the snapshot is the maximum amount of data the snapshot area can hold, meaning the maximum amount of data that may change before the snapshop becomes stale.
The size you're setting for the snapshot is the maximum amount of data the snapshot area can hold, meaning the maximum amount of data that may change before the snapshop becomes stale.
I am running Ubuntu 16.04 on a HP laptop with a core I3 processor. I am trying to run mariaDB and do hot backups to disk. In order to do that I wanted to create an LVM snapshot and backup the snapshot for a point in time backup, possibly using tar. I included a snapshot of the gparted app showing... (1 Reply)
Hi,
I work as an Oracle Technical consultant (mainly DBA related), and I have used ZFS snapshots on previous projects which has helped me a great deal. I often take snapshots before doing some dev work, and then I can roll it back if I want to start again, or if it goes pear shaped!!
I have... (4 Replies)
I have a script with:
mplayer tv:// -tv driver=v4l2:device=/dev/video0:width=320:height=240:norm=NTSC:fps=30:noaudio:input=0 -vf screenshot -aspect 4:3 -vo xv
to take .png screenshots.
It now works but am not getting what the webcam sees displayed in the frame -- just snow noise.
Does someone... (1 Reply)
Hi,
I'm new to HP-UX.
I have LVM on /var with 92Gig. I would like to reduce it to create another LVM for Oracle client with 800 meg or so. How to do it. I'm running 11.iv3
Thanks (4 Replies)
Hi guys,
I have a dout how to take snapshots backup, i want to take /expote/home(it is of 5.3GB) c0t0d0s7 to /backup dir( i created 6.0GB of slice) in different drive c0t1d0s0. i kow the sintax but i feel dificulty to take backup.i use this:-
fssnap -F ufs -o bs=/export/home/ /backup/ but... (4 Replies)
Hi guys,
i am intrested to learn about snapshots. I was a bit confused about snapshot i know using fssnap -F ufs -o bs (i dont understand the exact what to give the path after this ) if any one know the proper syntax..pls help me. (2 Replies)
04-05-2011
