Backup and Recovery - Oracle Exadata Recipes: A Problem-Solution Approach - page 187

proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/md8 on /opt/oracle type ext3 (rw,nodev)
/dev/md4 on /boot type ext3 (rw,nodev)
/dev/md11 on /var/log/oracle type ext3 (rw,nodev)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
[root@cm01cel01 ~]#

■ Note oracle uses the /mnt/usb directory to perform its automatic CeLLBoot uSB Flash drive backups.

3. Now, mount your USB drive and validate:

[root@cm01cel01 ~]# mount /dev/sdm1 /mnt/usb
[root@cm01cel01 ~]# df -k /mnt/usb
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdm1 3852548 1079708 2577140 30% /mnt/usb
[root@cm01cel01 ~]#

4. You can check the contents of the CELLBOOT USB Flash Drive as listed below.

[root@cm01cel01 ~]# ls /mnt/usb
boot.cat

image.id isolinux.bin lost+found vmlinuz-2.6.18-

194.3.1.0.2.el5
boot.msg imgboot.lst isolinux.cfg memtest vmlinuz-2.6.18-

238.12.2.0.2.el5
cellbits initrd-2.6.18-194.3.1.0.2.el5.img kernel.ver splash.lss
grub initrd-2.6.18-238.12.2.0.2.el5.img lastGoodConfig trans.tbl
I_am_CELLBOOT_usb initrd.img log vmlinuz

[root@cm01cel01 ~]#

How It Works
Oracle automatically backs up your system volumes on the internal CELLBOOT USB Flash Drive, as discussed
in Recipe 8-1. This drive is typically built on partition /dev/sdm1 , which can be mounted to /mnt/usb or a mount
directory of your choosing.
Oracle will boot to this CELLBOOT USB Flash Drive in the event of loss or corruption of the system
volume partitions.

8-3. Creating a Cell Boot Image on an External USB Drive
Problem
You wish to create an external bootable recovery image in addition to the internal CELLBOOT USB Flash Drive for
backup redundancy purposes.