今天在虚拟机里，发现剩余磁盘空间<10%，总共30G的磁盘，剩下不到2G，如果给ORACLE做一个RMAN全备的话就所剩无几了，于是想在虚拟机里增加一块硬盘，然后格式化，挂载到ORACLE的目录下，然后把ORACLE的 FLASH_RECOVERY_AREA 改过来，步骤如下，
增加硬盘的步骤很简单，先关闭虚拟机，点EDIT =>HARD DISK=>ADD=>CREATE NEW VIRTUAL DISK=>SCSI 等按部就班，搞定后启动vm.
1，[root@coop ~]# fdisk -l Disk /dev/sda: 53.6 GB, 53687091200 bytes 255 heads, 63 sectors/track, 6527 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 3916 31350847+ 8e Linux LVM Disk /dev/sdb: 21.4 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sdb doesn't contain a valid partition table [root@coop ~]# fdisk /dev/sdb Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. The number of cylinders for this disk is set to 2610. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) Command (m for help): Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-2610, default 1): Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-2610, default 2610): Using default value 2610 Command (m for help): Command (m for help): m Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m for help): t Selected partition 1 Hex code (type L to list codes): l 0 Empty 1e Hidden W95 FAT1 80 Old Minix c1 DRDOS/sec (FAT- 1 FAT12 24 NEC DOS 81 Minix / old Lin c4 DRDOS/sec (FAT- 2 XENIX root 39 Plan 9 82 Linux swap c6 DRDOS/sec (FAT- 3 XENIX usr 3c PartitionMagic 83 Linux c7 Syrinx 4 FAT16 <32M 40 Venix 80286 84 OS/2 hidden C: da Non-FS data 5 Extended 41 PPC PReP Boot 85 Linux extended db CP/M / CTOS / . 6 FAT16 42 SFS 86 NTFS volume set de Dell Utility 7 HPFS/NTFS 4d QNX4.x 87 NTFS volume set df BootIt 8 AIX 4e QNX4.x 2nd part 8e Linux LVM e1 DOS access 9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e3 DOS R/O a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e4 SpeedStor b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS eb BeOS fs c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi ee EFI GPT e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ef EFI (FAT-12/16/ f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD f0 Linux/PA-RISC b 10 OPUS 55 EZ-Drive a7 NeXTSTEP f1 SpeedStor 11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f4 SpeedStor 12 Compaq diagnost 5c Priam Edisk a9 NetBSD f2 DOS secondary 14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot fb VMware VMFS 16 Hidden FAT16 63 GNU HURD or Sys b7 BSDI fs fc VMware VMKCORE 17 Hidden HPFS/NTF 64 Novell Netware b8 BSDI swap fd Linux raid auto 18 AST SmartSleep 65 Novell Netware bb Boot Wizard hid fe LANstep 1b Hidden W95 FAT3 70 DiskSecure Mult be Solaris boot ff BBT 1c Hidden W95 FAT3 75 PC/IX bf Solaris Hex code (type L to list codes): b Changed system type of partition 1 to b (W95 FAT32) Command (m for help): p Disk /dev/sdb: 21.4 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 2610 20964793+ b W95 FAT32 Command (m for help): p Disk /dev/sdb: 21.4 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 2610 20964793+ b W95 FAT32 Command (m for help): m Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m for help): t Selected partition 1 Hex code (type L to list codes): l 0 Empty 1e Hidden W95 FAT1 80 Old Minix c1 DRDOS/sec (FAT- 1 FAT12 24 NEC DOS 81 Minix / old Lin c4 DRDOS/sec (FAT- 2 XENIX root 39 Plan 9 82 Linux swap c6 DRDOS/sec (FAT- 3 XENIX usr 3c PartitionMagic 83 Linux c7 Syrinx 4 FAT16 <32M 40 Venix 80286 84 OS/2 hidden C: da Non-FS data 5 Extended 41 PPC PReP Boot 85 Linux extended db CP/M / CTOS / . 6 FAT16 42 SFS 86 NTFS volume set de Dell Utility 7 HPFS/NTFS 4d QNX4.x 87 NTFS volume set df BootIt 8 AIX 4e QNX4.x 2nd part 8e Linux LVM e1 DOS access 9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e3 DOS R/O a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e4 SpeedStor b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS eb BeOS fs c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi ee EFI GPT e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ef EFI (FAT-12/16/ f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD f0 Linux/PA-RISC b 10 OPUS 55 EZ-Drive a7 NeXTSTEP f1 SpeedStor 11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f4 SpeedStor 12 Compaq diagnost 5c Priam Edisk a9 NetBSD f2 DOS secondary 14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot fb VMware VMFS 16 Hidden FAT16 63 GNU HURD or Sys b7 BSDI fs fc VMware VMKCORE 17 Hidden HPFS/NTF 64 Novell Netware b8 BSDI swap fd Linux raid auto 18 AST SmartSleep 65 Novell Netware bb Boot Wizard hid fe LANstep 1b Hidden W95 FAT3 70 DiskSecure Mult be Solaris boot ff BBT 1c Hidden W95 FAT3 75 PC/IX bf Solaris Hex code (type L to list codes): 8e Changed system type of partition 1 to 8e (Linux LVM) Command (m for help): m Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: If you have created or modified any DOS 6.x partitions, please see the fdisk manual page for additional information. Syncing disks. [root@coop ~]# fdisk -l Disk /dev/sda: 53.6 GB, 53687091200 bytes 255 heads, 63 sectors/track, 6527 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 3916 31350847+ 8e Linux LVM Disk /dev/sdb: 21.4 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 2610 20964793+ 8e Linux LVM [root@coop ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 28G 22G 4.5G 83% / /dev/sda1 99M 14M 81M 15% /boot none 506M 0 506M 0% /dev/shm [root@coop ~]# mkfs.ext3 /dev/sdb1 mke2fs 1.35 (28-Feb-2004) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 2621440 inodes, 5241198 blocks 262059 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=8388608 160 block groups 32768 blocks per group, 32768 fragments per group 16384 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000 Writing inode tables: done Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 39 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. [root@coop ~]# mount /dev/sdb1 /u01/arch [root@coop ~]# df -lh Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 28G 22G 4.5G 83% / /dev/sda1 99M 14M 81M 15% /boot none 506M 0 506M 0% /dev/shm /dev/sdb1 20G 77M 19G 1% /u01/arch
还要更改文件夹权限
[root@coop ~]# chmod 777 /u01/arch [root@coop ~]# chown -R oracle /u01/arch
2，更改ORACLE 参数
SQL> show parameter db_recover NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_recovery_file_dest string /home/oracle/oracle/product/10 .2.0/db_1/flash_recovery_area db_recovery_file_dest_size big integer 2G SQL> alter system set db_recovery_file_dest='/u01/arch/flash_recovery_area' scope=both; System altered.
SQL> alter system set db_recovery_file_dest_size=10G; System altered.
3.大功告成
SQL> show parameter db_recover NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_recovery_file_dest string /u01/arch/flash_recovery_area db_recovery_file_dest_size big integer 10G
