So, I've been working at my company for about 6 months now.
Didn't take me long to figure out the former sysadmin wasn't too knowledgeable
in regards to many things (i.e. we've been using HUBs in our datacenter).
Anyways, so we have this ongoing debate that every new install we do, we should
allocate twice the amount of RAM for swap. I was always taught and depending on what
you read, SWAP should be last resort. If your OS starts to use SWAP, you need to look at the application or add more RAM.
Most of our boxes have 16GB and based on data from SAR for the past 6 months, they rarely go over 8GB. These are oracle DBs by the way. The reason I ask is because we're rolling out vmware. I'm trying to save space where ever I can can we'll be using our SAN. A 4gb VM shouldn't require 8GB of swap assuming the box isn't a DB box or one that isn't resource intensive. Anyways, your thoughts?
Didn't take me long to figure out the former sysadmin wasn't too knowledgeable
in regards to many things (i.e. we've been using HUBs in our datacenter).
Anyways, so we have this ongoing debate that every new install we do, we should
allocate twice the amount of RAM for swap. I was always taught and depending on what
you read, SWAP should be last resort. If your OS starts to use SWAP, you need to look at the application or add more RAM.
Most of our boxes have 16GB and based on data from SAR for the past 6 months, they rarely go over 8GB. These are oracle DBs by the way. The reason I ask is because we're rolling out vmware. I'm trying to save space where ever I can can we'll be using our SAN. A 4gb VM shouldn't require 8GB of swap assuming the box isn't a DB box or one that isn't resource intensive. Anyways, your thoughts?
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