Database Reference
In-Depth Information
DoAllcmds-20130909181950.sh
INFO : Background process 3206 (node: 192.168.16.24) gets done with the exit code 0
INFO : Running as root: /usr/bin/ssh -l root 192.168.16.25 /opt/oracle/oak/onecmd/tmp/
DoAllcmds-20130909181950.sh
INFO : Background process 3229 (node: 192.168.16.25) gets done with the exit code 0
INFO : Time spent in step 11 resetpasswd is 1 seconds.
==================================================================================
INFO : Log file is /opt/oracle/oak/onecmd/tmp/ejb1-20130909181949.log...
Exiting...
Resetting dns, ntp and Rebooting
INFO : Logging all actions in /opt/oracle/oak/onecmd/tmp/ejb1-20130909181950.log and traces
in /opt/oracle/oak/onecmd/tmp/ejb1-20130909181950.trc
INFO : Loading configuration file /opt/oracle/oak/onecmd/onecommand.params...
INFO : Creating nodelist files...
==================================================================================
INFO : 2013-09-09 18:19:51
INFO : Step 12 reboot
INFO : Running as root: /usr/bin/ssh -l root 192.168.16.24 /opt/oracle/oak/onecmd/tmp/reboot.sh
INFO : Running as root: /usr/bin/ssh -l root 192.168.16.25 /opt/oracle/oak/onecmd/tmp/reboot.sh
Preparing for a ZFS Array As External Storage
While you can add an additional storage tray to the X3-2, you also have the option of growing storage from an NFS share,
like Oracle ZFS Array. Growing from a ZFS Array allows you to introduce technologies like Hybrid Columnar Compression
(HCC) and Storage Tiering. HCC allows you to store your user data in significantly less space and retrieve data with less
I/O. Utilizing HCC warehouse compression, you see 5x to 10x in storage savings, and with HCC archive compression you
can have 10x to 50x of storage savings. These savings are strongly dependent on actual data. The increased storage savings
may cause data load-times to increase modestly. Storage Tiering allows you to leverage partitioning to keep your active
data on the Oracle Database Appliance internal disks, and inactive data on the ZFS Array. This allows significantly more
data to be accessible to the database without affecting the performance of active data.
When using NFS-based storage, it is recommended to enable a technology called Direct NFS. Oracle looks for the
mount settings in
$ORACLE_HOME/dbs/oranfstab
, which specifies the Direct NFS Client settings for a single database.
Next, Oracle looks for settings in
/etc/oranfstab
, which specifies the NFS mounts available to all Oracle databases on
that host. Finally, Oracle reads the mount tab file
(/etc/mtab
on Linux) to identify available NFS mounts. If there are
duplicate entries in the configuration files, the Direct NFS Client will use the first entry it finds. Listing 3-13 provides
an example of the Direct NFS settings in the
oranfstab
file.
Listing 3-13.
Example of oranfstab
[orahost1]# cat $ORACLE_HOME/dbs/oranfstab
server: zfs.m57.local
path: 172.30.0.90
export:/oranfsdata mount:/oranfsdata
export:/oranfsarch mount:/oranfsarch
■
the Ip address used in the path line is the virtual Ip (VIp) address of the node that the nFs mount will
connect to.
Note
