Recently my employer has moved from an old DMX3 SAN to a newer VMAX SAN. The procedure was worked out, and everything was moved over (fairly smoothly). Some exceptions were the BIG VG’s being maxed at the Total PV sizes, and unable to increase due to the times factor of the Volume Group which couldn’t … Read more
Due to some issues with the way the VG’s were initially laid out, a standard pvmigration isn’t possible with one of the AIX servers we administer. Hence, another possibility is to use the ISL on the SAN side, which basically does a block level copy of the LUNs from one SAN to the other. Some … Read more
I found an interesting antidote about AIX recently. I can safely say I was surprised. Here is the lo-down. On AIX System when you create a Logical Volume you can specify that you want the device subtype to be either zero-byte attribute or 4K byte attribute. This attribute is used by oracle to determine where … Read more