Tag Archives: Oracle Solaris

Change EMC Powerpath Failover Policy on UNIX Systems

As UNIX system administrators – we need our Operating Systems running in optimal state every time. The same is what we want to our storage systems. In EMC Powerpath there are a couple of failover policies that we can enforce to our storage devices but we must always use the one that is best suitable. We have here a LUN that is currently under Basic Failover policy even though the storage is CLARiiON:

Import Disk Group (DG) in VxVM

Have you ever encounter rebooting a server and your Veritas filesystems are missing? Most cases these filesystems were not imported during boot up and is not available for OS to use. Importing a disk groups in VxVM does not need any reboot, follow these simple steps and you will be able to get back your disk groups in no time.

Integrated Lights Out Manager (ILOM) CLI Cheat Sheet

Learning the Integrated Lights Out Manager (ILOM) will be a big help when a System Administrator cannot login anymore to the server. ILOM can be accessed via IP network or serial console. Here are some of the most commonly used commands that could get anyone on track on managing the ILOM:

Sun StorEdge A1000 Battery Replacement Procedure

Sun StorEdge A1000 is one of the oldest storage array from SUN but still widely used. Just recently, we received a battery expiration and we need this replaced as soon as possible to ensure optimal operation of the said Sun StorEdge A1000 array. Below are the steps that we used to replace the expired battery:

Clearing FMA faults on Oracle/Sun Fire T1000/T2000

After replacing a defective part on a Sun Fire T1000/T2000 boxes, we need to clear the FMA Faults. There are two ways that we can achieve this task – via the System Controller (SC) or Solaris OS. I usually prefer the path because there is no downtime required but there would be times that we need to do it on the OS side.

Install EMC PowerPath License on UNIX Systems

Today we encountered a degraded policy in EMC PowerPath disk on one of our SUN/Oracle Solaris boxes. We found out that the license for our PowerPath was not properly installed on the system. With this current issue – our disks is only running on Basic Failover policy which is not recommended for CLARiiON disks. To mitigate the issue, we need to install the license and set the policy back to CLARiiON Optimization Policy.