Tom Robinson wrote:
On 31/03/14 17:03, Daniel Malon wrote:
About „the one big partition“ thing:
It is the system partition. You should add a second data disk for all your
stuff (that will automatically get formatted and mounted at /data).
I guess none will be happy if you set a fixed disk size for the image … because
honestly everyone wants to have it a different size.
Obviously I'm having problems coming across from the RHEL mentality. Typically
one would mount
several volumes and use LVM:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg-root 1008M 239M 719M 25% /
tmpfs 499M 0 499M 0% /dev/shm
/dev/vda1 248M 33M 203M 14% /boot
/dev/mapper/vg-home 1008M 34M 924M 4% /home
/dev/mapper/vg-tmp 504M 17M 462M 4% /tmp
/dev/mapper/vg-usr 3.0G 477M 2.4G 17% /usr
/dev/mapper/vg-var 1008M 104M 854M 11% /var
Is there an adverse impact of using LVM inside the SmartOS KVM instance?
An extra layer of complexity you don't need? I had a similar
conversation with a local admin who wanted to use LVM RAID on an AWS
VM; there really wasn't any point in a virtualised environment.
I see that one can add more
disks but I haven't tried this. Is it easier to manage volumes from the SmartOS
side? Is there
documentation for this?
You can just add virtual disks in the VM's original JSON payload, or add
them later with vmadm. See the disks section in the man page.
Possibly it would look something like this:
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 1008M 239M 719M 25% /
tmpfs 499M 0 499M 0% /dev/shm
/dev/vdb1 248M 33M 203M 14% /boot
/dev/vdc1 1008M 34M 924M 4% /home
/dev/vdd1 504M 17M 462M 4% /tmp
/dev/vde1 3.0G 477M 2.4G 17% /usr
/dev/vdf1 1008M 104M 854M 11% /var
If you felt the need (is /tmp really a volume?) to yes. Given VMs tend
to have a dedicated function, is there anything to be gained from such
fine grained partitioning? You will run into all sorts of problems if
you want to image a VM built in this way.
--
Ian.
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