What is jar testing? Jar testing is a method of simulating a full-. scale water treatment process, providing sys-. tem operators a reasonable idea of the way a. treatment chemical will behave and operate. with a particular type of raw water. Because it. mimics full-scale operation, system operators.
Read Uncommitted. This is the lowest isolation level there is. Read uncommitted causes no shared locks to be requested which allows you to read data that is currently being modified in other transactions. It also allows other transactions to modify data that you are reading.his is the lowest isolation level there is. Read uncommitted causes no shared locks to be requested which allows you to read data that is currently being modified in other transactions. It also allows other transactions to modify data that you are reading.
Associating a world wide name (WWN) to a logical unit number (LUN) within a storage array is a way of implementing data security in the SAN. Each HBA in your servers connected to the SAN has a WWN. Within the storage array, you can assign the WWN to a particular LUN so that even if zoning is not implemented in the SAN fabric, only that particular HBA will have access to that specific LUN. This is sometimes referred to as LUN masking.. Chris.