RE: HPUX SCSI Performance

[david hill]

Title: RE: HPUX SCSI Performance

It turns out it's a bug with vxfs on all Itanium system's HP is starting to work on a patch for it hopefully  it'll be out soon   Thanks for the input though.   David Hill   -----Original Message----- From: Rich Holland [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 20, 2003 9:39 PM To: Multiple recipients of list ORACLE-L Subject: RE: HPUX SCSI Performance   Have you checked the queue depths?  There are several parameters your admin can use to tune SCSI performance, but this is typically the first place to start with OLTP systems.  You might also look at your buffer cache settings (HP-UX ships with these set at 10-20% I believe; in an Oracle environment, smaller cache often makes sense (anything from 2-10 depending on your I/O patterns).   Rich   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of david hill Sent: Wednesday, February 05, 2003 2:09 PM To: Multiple recipients of list ORACLE-L Subject: RE: HPUX SCSI Performance   HPUX 11i version 1.6 for itanium on vxfs -----Original Message----- From: Jesse, Rich [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 05, 2003 12:14 PM To: Multiple recipients of list ORACLE-L Subject: RE: HPUX SCSI Performance What OS?  What filesystem? Rich Jesse                           System/Database Administrator [EMAIL PROTECTED]                  Quad/Tech International, Sussex, WI USA -----Original Message----- Sent: Wednesday, February 05, 2003 10:39 AM To: Multiple recipients of list ORACLE-L   Hi Guys I'm hoping there is sysadmin in the list that can help me.   We just received a brand new Itanium Server to play with It has 2  U320 disk not striped or mirrored or anything   Doing test and monitoring them through glance, is giving me a transfer rate of about 15Megs a sec These should be up around 60 - 80 megs right?   My sysadmin says there is nothing he can do. Can someone tell if there is some sort setting he hasn't set or a config somewhere?   Thanks. David Hill -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Jesse, Rich   INET: [EMAIL PROTECTED] Fat City Network Services    -- 858-538-5051 http://www.fatcity.com San Diego, California        -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from).  You may also send the HELP command for other information (like subscribing).