Re: IBM AIX Kernel parameter limitations

Mikey, your nuts! Anyway, I'm not the system administrator, I'm the DBA. The System Administrators get to make the hardware decision and don't really care about my input, but since I had heard compliants from other users I just wanted to see if this was going to be a potential issue. Just information gathering, not witch hunting. (Halloween was last month). Kate_Tomchik@HomeDepot.COM wrote: > > Hi team! > We have been a die hard HP shop for a long time, but we are about > to start buying IBM AIX machines. I know I have heard complaints > in some classes from other users of this platform because they were > unable to tune parameters that INFORMIX told them needed to be > increased. Can anyone give me a specific example of a situation > that occurred when the environment could not be optimized due to > the lack of tunable Kernel parameters? I know one user who was > complaining because of problems archiving blob spaces. > > What parameters are not tunable in IBM AIX that are tunable > in HP? > > Are ANY Kernel parameters tunable in IBM AIX? > > Thanks for your responses! Since I support both AIX and HP, I think that what you are trying to do is a witch hunt. First, lets get real. In the last 10 years, the number of actual tunable parameters have decreased. If you don't believe me, check out several versions of O'Reileys Unix Tunning book. (The one with the swordfish). You can tune an engine but you can't tune a fish :-) What HP has done in the later versions of HP-UX, along with AIX and Sun, is to limit the parameters an admin has had to tune. What they have done is to create formulas to tune underlying parameters which need to be changed from the parameters you the admin can change. (If you go in to the files, (I also thing SAM shows this too.) you will see comments about the parameter automatically being tuned based on another parameter's value. You *do* have the choice of overriding this, however it is not recommended.) The bottom line, you will have trials and tribulations no matter which operating system you chose, or are forced to work with. If you can't or are unwilling to live in a heterogenous UNIX environment, then you shouldn't be a system administrator. While this seems like a rough statement, each vendor has a set of tools which makes it a viable system for some tasks. Gosh Darn it, can't we *all* live together in peace and harmony! (Ok, so I say blazing saddles last night :-) -Mikey -- #include <std_disclaimer.h> /* Mike Segel (MS385) */ #include <No_Spam.h> #ifdef OFFENDED_BY_CONTENT The author takes no responsibility for this post. Any resemblence to a coherent rational thought is purely coincidence. -The Management. #endif ***************************** Due to AGIS's Refusal to Act Responsibly We are blocking all of their domains at the packet level. This block will exist until AGIS modifies their policies to conform to existing RFCs and net community standards. We encourage all ISPs and domain holders to do the same. *****************************