openstack cinder volume type

updating the XML configuration file for instance.We can also view the updated XML by Virsh edit.As you can see, instance adds a virtual disk of type block, source is the volume to be attach, the device name of the virtual disk is VDB.Manual Shut off and Start instance, through Fdisk-l to see volume has attach up, equipment for VDBThe GUI interface also updates r

Today's discussion cinder how to delete volume.A volume with a status of Available can be deleted. If volume is currently attach to instance, it needs to be detach before delete.The delete operation is relatively simple and the flowchart is as follows: Send Delete request to Cinder-api

;float:none; "/>Cinder-scheduler sending MessagesCinder-scheduler send a message to Cinder-volume, let it create volume source/opt/stack/cinder/cinder/scheduler/filter_scheduler.py, method for Schedule_create_volume.650) this.widt

In the previous section we discussed the first part of Cinder creating Volume, Cinder-api operation, this section continues the second part, Cinder-scheduler scheduling work.cinder-scheduler Execution SchedulingCinder-scheduler executes the scheduling algorithm and selects the optimal storage node log for/opt/stack/log

in the previous section we will NFS volume provider Configuration ready, this section will create volume. Create VolumeTo create an NFS volume action method as with LVM volume, the only difference is to select "NFS" in the drop-down list of volume type.Click "Create

/libvirt/storage/HostVG. xml is created. the content is Run the virsh command to create a new Storage Pool "HostVG" And enable this HostVG Now we can add the LV virtual disk for the virtual machine kvm1 in virt-manager. Click Browse You can see that HostVG is already in the Stroage Pool list. select HostVG Name volume newlv and set the size to 100 MB. Click Finish. newlv is created successfully. Click Choose

Storage Pool of LVM type Not only can a file be assigned to the client as a virtual disk, but the LV in the VG on the host can also be allocated to the virtual machine for use as a virtual disk.However, LV because there is no MBR boot record of the disk, can not be used as the boot disk of the virtual machine, only as a data disk.In this configuration, the VG on the host is a Storage POOL,VG in the LV is Volume