Displaying 3 results from an estimated 3 matches for "lv_database".
2016 Jan 22
4
LVM mirror database to ramdisk
...l LVM for my virtual disks with DRBD on top to mirror the
disk to a backup server.
If I change grub.conf to increase RAM disk size and increase host RAM,
I could create a 35G RAM disk.
I'd modify rc.local to add
pvcreate /dev/ramdisk
vgextend vg /dev/ramdisk
lvconvert -m 1 --corelog vg/lv_database /dev/ramdisk
Even with lv_database being 35G, it doesn't take long to activate the
mirror.
I haven't decided where to put the commands to turn off the lvm
mirror.
lvconvert -m 0 vg/lv_database
vgreduce vg /dev/ramdisk
pvremove /dev/ramdisk
I haven't put this in real world us...
2016 Jan 22
0
LVM mirror database to ramdisk
...isk to a backup server.
>
> If I change grub.conf to increase RAM disk size and increase host RAM,
> I could create a 35G RAM disk.
>
> I'd modify rc.local to add
> pvcreate /dev/ramdisk
> vgextend vg /dev/ramdisk
> lvconvert -m 1 --corelog vg/lv_database /dev/ramdisk
>
> Even with lv_database being 35G, it doesn't take long to activate the
> mirror.
>
> I haven't decided where to put the commands to turn off the lvm
> mirror.
> lvconvert -m 0 vg/lv_database
> vgreduce vg /dev/ramdisk
>...
2016 Jan 22
2
LVM mirror database to ramdisk
...gt; If I change grub.conf to increase RAM disk size and increase host RAM,
> > I could create a 35G RAM disk.
> >
> > I'd modify rc.local to add
> > pvcreate /dev/ramdisk
> > vgextend vg /dev/ramdisk
> > lvconvert -m 1 --corelog vg/lv_database /dev/ramdisk
> >
> > Even with lv_database being 35G, it doesn't take long to activate the
> > mirror.
> >
> > I haven't decided where to put the commands to turn off the lvm
> > mirror.
> > lvconvert -m 0 vg/lv_database
> >...