backup-restore Volume Size 가 다를경우 아래와 같은 과정을 거치면...작업가능(단. 확장되지 않은 Volume에 백업된 파일을 사용할수 없음. 현시점을 기준으로 확장 --> 백업 --> restore)
Extend --> 백업대상 Volume-detach --> 백업대상에서 복구파일 restore --> backup-create -->
작업하려는 인스턴스에 restore --> volume-attach
# cinder list
....................................
| 306062c4-e73a-44d5-8070-b84da98b0b7d | available | ceph_volume_5 | 5 | - | false | False | |
:: 5G Volume을 30G Volume으로 확장
# cinder extend 306062c4-e73a-44d5-8070-b84da98b0b7d 30
# nova volume-detach bdb147a9-2cec-4914-9c63-f6a202140366 1d836f22-58c2-4e7d-b54e-7fc8af4676e4
# cinder list
....................................
| 306062c4-e73a-44d5-8070-b84da98b0b7d | available | ceph_volume_5 | 30 | - | false | False | |
:: 현재 Volume 백업
# cinder backup-create 306062c4-e73a-44d5-8070-b84da98b0b7d --name "5g_change_30g"
# cinder backup-restore --volume 306062c4-e73a-44d5-8070-b84da98b0b7d 3a928365-a67f-4805-9775-f5709bada161
# nova volume-attach bdb147a9-2cec-4914-9c63-f6a202140366 306062c4-e73a-44d5-8070-b84da98b0b7d
인스턴스내
:: 마운트해서 Volume 정보확인
# mkdir /BAK_DISK
# mount /dev/vdi1 /BAK_DISK
# df -Th
Filesystem Type Size Used Avail Use% Mounted on
...................................
/dev/vdi1 ext4 4.8G 1.7G 2.9G 38% /BAK_DISK
-s <partition> give partition size(s) in blocks
# fdisk -s /dev/vdi
31457280 ---> 백업된 파일은 5G 였지만 30G 확장
:: Volume 확장
# umount /BAK_DISK
# fdisk -u /dev/vdi
-u <size> give sizes in sectors instead of cylinders
※ Disk Resize 참고 URL
# reboot
# e2fsck -f /dev/vdi1
e2fsck 1.41.12 (17-May-2010)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/vdc1: 17/327680 files (0.0% non-contiguous), 494832/1310644 blocks
# resize2fs /dev/vdi1
resize2fs 1.41.12 (17-May-2010)
The filesystem is already 7864312 blocks long. Nothing to do!
# df -Th
Filesystem Type Size Used Avail Use% Mounted on
...................................
/dev/vdI1 ext4 30G 1.7G 27G 7% /BAK_DISK
==> 다시 동일하게..아래과정....
Volume-detach --> backup-create --> backup-restore --> Volume-attach
