Virsh pool-define-as

virsh pool-define-as Create a permanent pool but do not start it.

virsh pool-define-as name type

pool types fs, logical, disk, iscsi, iscsi-direct, zfs, vstorage

 [--source-host hostname]
 [--source-path path]
 [--source-dev path]
 [--source-name name]
 [--target path]
 [--source-format format]
 [--auth-type authtype --auth-username username
 [--secret-usage usage
 |--secret-uuid uuid]] [[--adapter-name name]
 [--adapter-wwnn --adapter-wwpn] [--adapter-parent parent]] [--print-xml]

Create a pool

Create a permanent, autostart pool of type dir

virsh pool-define-as MY_STORAGE_POOL --type dir --target 
/var/lib/libvirt/MY_STORAGE_POOL_PATH
Pool MY_STORAGE_POOL defined

virsh pool-autostart MY_STORAGE_POOL
Pool MY_STORAGE_POOL marked as autostarted

virsh pool-start MY_STORAGE_POOL
Pool MY_STORAGE_POOL started

Review creation

virsh pool-list
Name                 State      Autostart
-------------------------------------------
MY_STORAGE_POOL               active     yes

virsh pool-info MY_STORAGE_POOL

Name:           MY_STORAGE_POOL
UUID:           4a208Ra0-tf7x-49b6-9ad7-47e71dfeb82d
State:          inactive
Persistent:     yes
Autostart:      yes
Capacity:       9.02 TiB
Allocation:     2.16 TiB
Available:      6.87 TiB

virsh vol-list MY_STORAGE_POOL --details

 Name  Path  Type  Capacity  Allocation
----------------------------------------

Activities

1. Understand differences between pool-define, pool-define-as and pool-create, pool-create-as
2. Create a Persistent storage pool
3. Create a Persistent storage pool and migrate some machines: Offline Migrate or move a virtual machine between two KVM servers without shared storage

Related commands

• virsh pool-list --all
• virsh vol-create-as

See also

• virsh: Storage information, Connecting, Operations, Memory, Snapshots, Networking, CPU, release notes, virsh nodedev-list
• KVM, Installation, QEMU, virsh, virtinst, libguestfs-tools, libvirt, qemu, Red Hat Virtualization (RHV), MacVTap, Virtio, oVirt, KVM services, KVM networking, KVM graphics, CPU, KVM on ARM

https://linux.die.net/man/1/virsh

https://libvirt.org/formatstorage.html