> I spent sometime reading about AFS this weekend and I am thinking on > setting it up on one of my Linux guests.
You'll want to do it with several new guests (3, at least), and make sure the new guests have a private guest LAN or VSWITCH they can use to talk to each other (ie, make them multihomed when you create them). AFS (like all the distributed cluster file systems) needs to talk to other parts of itself often. > I am not optimistic that the performance for an Oracle file system > will be anywhere near what I get with a locally mounted LVM/ext3. It probably won't be close to local disk performance for large databases, especially with random seek semantics in play. The AFS cache manager does very well with sequential reads and writes; less well with random access. This is one area where GPFS and OpenDFS do better, but they have other tradeoffs (esp DFS). > On the other hand, we have problems today when we want to extend the > size of the Oracle filesystem. We need to take it down before > mounting. I am hoping that AFS will fix that problem. Not completely. AFS will allow you to adjust quotas in a smarter way so that the issue of filesystem size is less relevant, but you will still have some issues with partition sizes. All of these problems can be minimized with good planning, but AFS is very different from a local-disk based plant. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
