HANA數據庫備份出現錯誤，從錯誤上看明細是備份盤的孔家滿了。
[447] backup could not be completed, [2000008] Error during asynchronous file transfer (io_getevents), rc=28: No space left on device; $fileCallback$=[W] , buffer=
1.在AWS控制檯中擴展卷，從1000G變成2000G
2.登錄到機器中fdisk-l,看到磁盤大小實際上不變
3.以爲需要umount，結果umount是提示失敗
HANADBPRD:/hana/hanabackup/data # umount /hana/hanabackup
umount: /hana/hanabackup: target is busy
(In some cases useful info about processes that
use the device is found by lsof(8) or fuser(1).)
HANADBPRD:/hana/hanabackup/data # fuser -mv /hana/hanabackup
USER PID ACCESS COMMAND
/hana/hanabackup: root kernel mount /hana/hanabackup
root 4031 ..c.. bash
root 14117 ..c.. fuser --c表示進程是在該目錄下啓動
root 48758 ..c.. bash
s4padm 45588 F.... hdbindexserver --F表示打開文件
HANADBPRD:/hana/hanabackup/data # lsof /hana/hanabackup
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
bash 4031 root cwd DIR 254,3 69 193017069 /hana/hanabackup/data
lsof 14201 root cwd DIR 254,3 69 193017069 /hana/hanabackup/data
lsof 14202 root cwd DIR 254,3 69 193017069 /hana/hanabackup/data
bash 48758 root cwd DIR 254,3 4096 1074766613 /hana/hanabackup/data/DB_S4P
4.修改歸檔日誌備份配置
因爲是HANA的備份設置備份到此文件夾，避免強行卸載後系統備份出現問題導致系統夯住，所以就先修改備份配置
在hana studio中以system登錄，backup and recover---configuration,將log backup settings中將日誌歸檔disable.
5.強制卸載卷 umount -l /home
6.擴容還是失敗
HANADBPRD:/hana/hanabackup # growpart /dev/xvvvv4n1 1
WARN: unknown label
failed [sfd_dump:1] sfdisk --unit=S --dump /dev/xvvvv4n1
sfdisk: /dev/xvvvv4n1: does not contain a recognized partition table
FAILED: failed to dump sfdisk info for /dev/xvvvv4n1
HANADBPRD:/ # mount /dev/xvvvv4n1 /hana/hanabackup
mount: unknown filesystem type 'LVM2_member'
原來是用LVM進行管理的，其實都可以不用umount的
7.LVM擴容
---查看卷組
HANADBPRD:/ # vgs
VG #PV #LV #SN Attr VSize VFree
vg_hana 3 3 0 wz--n- 1001.99g 1.99g
vg_hanabackup 1 1 0 wz--n- 1000.00g 0
---查看物理卷
HANADBPRD:/ # pvs
PV VG Fmt Attr PSize PFree
/dev/xvme2n1 vg_hana lvm2 a-- 334.00g 0
/dev/xvvvv4n1 vg_hanabackup lvm2 a-- 1000.00g 0
/dev/xvme4n1 vg_hana lvm2 a-- 334.00g 1.99g
/dev/xvme6n1 vg_hana lvm2 a-- 334.00g 0
--擴容物理卷
HANADBPRD:/ # pvresize -v /dev/nvvvv4n1
Using physical volume(s) on command line.
Archiving volume group "vg_hanabackup" metadata (seqno 3).
Resizing volume "/dev/nvvvv4n1" to 4194304000 sectors.
Resizing physical volume /dev/nvvvv4n1 from 0 to 511999 extents.
Updating physical volume "/dev/nvvvv4n1"
Creating volume group backup "/etc/lvm/backup/vg_hanabackup" (seqno 4).
Physical volume "/dev/nvvvv4n1" changed
1 physical volume(s) resized / 0 physical volume(s) not resized
--查看物理卷，此時磁盤已經成了2T
HANADBPRD:/ # pvs
PV VG Fmt Attr PSize PFree
/dev/nvvvv4n1 vg_hanabackup lvm2 a-- 1.95t 1000.00g
---查看卷組
HANADBPRD:/ # vgs
VG #PV #LV #SN Attr VSize VFree
vg_hanabackup 1 1 0 wz--n- 1.95t 1000.00g
---查看邏輯卷，邏輯卷還是沒有變化
HANADBPRD:/ # lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lv_hanabackup vg_hanabackup -wi-ao---- 1000.00g
--擴展邏輯卷，
HANADBPRD:/ # lvextend -L +1000g /dev/vg_hanabackup/lv_hanabackup
Size of logical volume vg_hanabackup/lv_hanabackup changed from 1000.00 GiB (255999 extents) to 1.95 TiB (511999 extents).
Logical volume lv_hanabackup successfully resized
---查看邏輯卷，邏輯卷已變大
HANADBPRD:/ # lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lv_hanadata vg_hana -wi-ao---- 400.00g
lv_hanalog vg_hana -wi-ao---- 300.00g
lv_hanashared vg_hana -wi-ao---- 300.00g
lv_hanabackup vg_hanabackup -wi-ao---- 1.95t
--掛載卷並擴容，df- h中，邏輯卷還是沒有擴容，
此時必須擴容卷，這個地方很容易卡住，主要原因是需要看你的文件系統用不同的工具命令：
resize2fs針對ext2/ext3/ext4 file system resize
xfs的需要使用xfs_growfs
HANADBPRD:/ # mount /dev/mapper/vg_hanabackup-lv_hanabackup /hana/hanabackup
HANADBPRD:/ # xfs_growfs /hana/hanabackup
meta-data=/dev/mapper/vg_hanabackup-lv_hanabackup isize=512 agcount=4, agsize=65535744 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=262142976, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=127999, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 262142976 to 524286976
-查看卷大小，這個時候已經是2T了。
--df -h
/dev/mapper/vg_hanabackup-lv_hanabackup 2.0T 733G 1.3T 37% /hana/hanabackup
8.進入hana statuio中重新啓動自動歸檔的功能。