Good afternoon all TSMers. I'm a little confused about the cache hit ratio information. If I run expiration on a database, surely the TSM server has to trawl through the entire thing on disk as it does not already reside in the buffer. So how would I expect to see hit ratios of 99% or higher. I won't go into details here as I'm more interested in the process of how the database and cache work than out particular performance problems. But, as we do very little in the way of restores, surely the amount of time that a requested database file is present in the cache must be very low, so a cache hit ratio of 96-98% would make sense.
Please forgive my ignorance here as I'm not a expert in this field at all. Many thanks in advance All the best Farren Minns John Wiley & Sons Ltd
