Exactly how does one go about deploying a large number of zones on an M8000 Enterprise Server, especially given that twelve separate links would be needed for the different networks and twice that number for IPMP. In the course of answering this question for a customer, Steffen Weiberle came up with a number of suggestions in his blog "Solaris 10 Zones and Networking -- Common Considerations."
Seeking to address some misconceptions on the subject of deduplication, Joerg Moellenkamp's blog "To dedup or not to dedup - that results in a lot of questions" provides a primer on the process. There are two major ways to deduplicate, he writes: synchronous and asynchronous. The synchronous variant does the deduplication while writing to the disks, so duplicates aren't written to disk; the asynchronous variant writes every block to the disk and later on it deletes duplicated blocks by searching possible candidates.
Yet another entry in the Linux vs. Solaris scalability debate. This time it comes in Garrett D'Amore's blog "Scalability FUD", where he argues that, at least in the HPC arena, most operations involve "user" rather than "sys" time and, therefore, the calls to inter-thread synchronization are relatively few.
Joerg Moellenkamp has published an "IPMP - Tutorial Sneak Preview" for those interested in learning more about IP Multipathing (IPMP). He discusses the IPMP implementation in both Solaris 10/older versions of OpenSolaris as well as the current releases of OpenSolaris (Build 107 and up). Beginning with definitions and basic concepts, which are then followed through with more specific details, Moellenkamp offers insight into using IPMP, ending with tips and tricks even seasoned users may not know.
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