Nowadays virtual environment are very common, thus a hot increase of an existing drive into a virtual machine is a very common operation (roughly equivalent to a LUN expansion in SAN).
When you expand a zpool device, the new size won’t be immediately available to zfs, but you can easily request an expand with the following:
Here’s the procedure for adding Oracle 12c DBMS as SMF service in Solaris 11.1, based on this guide. The version provided here is slightly modified for the sake of simplicity as It needs only the oracle.xml to run (no additional scripts or configuration are required).
The procedure should work even with previous versions of Oracle DBMS and Solaris 11/10 (untested).
Some time ago I’ve built some code to declare Finite State Machines in Java in an annotated fashion so you wouldn’t have to bother yourself with state handling. Since it turned out that the code has been useful in more than a couple occasions, I’ve decided to share it.
JSM comes as a tiny jar with an easy to use interface.
— More to come here! –
After putting your precious data into your preferred database (Oracle or MySQL if you’re here) your next worry should be how to back them up. Here Bacula comes to help as a valid opensource network enterprise backup system – but how to get it working with your database?
In this post you’ll find some scripts which I developed to integrate Oracle or MySQL seamlessly with Bacula, allowing it to:
- Do (hot) full backup of the database
- Do (hot) incremental backup (also known as incremental differential backup)
- Do (hot) differential backup (also known as incremental cumulative backup)
VMware ESXi 5 is not able to handle multi-lun devices by default, so many SCSI autoloaders are not supported as-is (as HP StorageWorks LTOs), showing only the tape drive or media changer but not both:
While executing proguard (via maven2) on MacOSX Snow Leopard, I’ve got the following error:
[proguard] Error: Can't read [/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/lib/rt.jar] (No such file or directory)
Similarly, you can also get the following error:
[proguard] Error: Can't read [/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/lib/jsse.jar] (No such file or directory)
Lately I wanted to bring the advantages of ZFS (on Solaris 11 Express) to a Linux box using iSCSI. After following the Oracle guide, I’ve noticed an unexpected behaviour when discovering the iSCSI targets (from a CentOS host):
[root@zimbra ~]# iscsiadm -m discovery -t sendtargets -p 192.168.64.10 192.168.64.10:3260,1 iqn.2011-01.org.cyberz:storage:mail 192.168.64.106:3260,1 iqn.2011-01.org.cyberz:storage:mail ... [root@zimbra ~]#
That is, the iSCSI target was bound to all the avaible interfaces (including ip addresses of zones).
TP-Link TL-WR743ND is the PoE brother of the common TL-WR741ND wireless router which is supported flawlessly by openwrt. Since I’ve got one WR743ND, I wanted to convert it into a useful OpenWRT router but I figured out that, unfortunately, the WR743ND is not supported by OpenWRT (at least officially). Given the similarity to the supported WR741ND, I’ve decided to hack it a bit to get it work with OpenWRT.