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RAC Attack - Oracle Cluster Database at Home/Configure Disks

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  1. In the Inventory tab at the left, select collabn1.
    RA-vmweb-collabn1-only.png
  2. Choose the Console tab. Click on the play button to start the VM. When you see the square boxes, click anywhere to open a console window.
    RA-vmweb-collabn1-only-console.png
  3. Login as the oracle user with the password racattack.
    RA-oel-login-oracle.png
  4. Open a terminal window.
    RA-oel-menu-terminal.png
  5. Switch to the root user with the "su -" command. (The password is racattack.) CONFIRM that two new disks exist and that they have the appropriate sizes. These two lines should exactly match!! [root@collabn1 ~]# cat /proc/partitions major minor #blocks name ... 8 16 3407872 sdb 8 32 3407872 sdc
  6. Create partitions on all of the newly created disks with fdisk.
    1. run fdisk /dev/sdb You should see the message "Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel"
    2. type "n" to create a new partition.
    3. type "p" for a primary partition.
    4. type partition number 1.
    5. press enter twice to accept the default first/last cylinders.
    6. type "t" to set the partition type.
    7. enter partition type da (Non-FS data).
    8. type "w" to write the partition table to disk.
    [root@collabn1 ~]# 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. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-652, default 1): ^M [default] Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-652, default 652): ^M [default] Using default value 652 Command (m for help): t Selected partition 1 Hex code (type L to list codes): da Changed system type of partition 1 to da (Non-FS data) Command (m for help): w The partition table has been altered! WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old table. Syncing disks.
  7. Repeat the previous step for disk /dev/sdc