You missed the point about the pages being fixed. If you have a number of guests doing that, it limits CP's ability to page stuff out. Things can go downhill rapidly at some point. Also, I've seen guests that were just barely undersized taking up 100% of a processor when another NIC was added to it, due to kswapd trying to deal with too little available storage. It is most definitely a disadvantage that needs to be taken into account.
Mark Post -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Mark Perry Sent: Thursday, December 16, 2004 6:32 AM To: [EMAIL PROTECTED] Subject: Re: Using VSWITCH and OSA When you run something like SAP under Linux, a little bit more storage for the network driver isn't an issue :-) All the Best Mark Perry > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Mark > Post > Sent: 15 December 2004 22:26 > To: [EMAIL PROTECTED] > Subject: Re: Using VSWITCH and OSA > > Plus, if you have two network interfaces on each guest, that doubles the > amount of real storage that gets used (and _fixed_) by the network driver. > The number of pages that get fixed is configurable, but then that's just > one > more thing to have to do for each guest. > > Mark Post > > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of > Michael MacIsaac > Sent: Wednesday, December 15, 2004 12:02 PM > To: [EMAIL PROTECTED] > Subject: Re: Using VSWITCH and OSA > > > > If you have two OSA cards why would you want to use VSWITCH High > > Availability rather than a full network High Availability solution? > > Because it's a *lot* easier to configure? > > "Mike MacIsaac" <[EMAIL PROTECTED]> (845) 433-7061 > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
