hmm.. I just tried this on my Linux workstation and the numbers are pretty close between free -m and swapon -s.
Could it be that something is attempting to load into memory that can't be swapped out and really needs more than 128M? Maybe try 256M and see how it goes? Others here probably have more knowledge of Linux memory management and what conditions are going to result in an out of memory w/o hitting swap... Scott On Tue, Jul 29, 2008 at 3:54 PM, Scott Rohling <[EMAIL PROTECTED]>wrote: > What about "free -m" -- does it show swapped being used? I've only used > swapon -s to see what devices are there and their priority... So I'm not > sure of the accuracy of that 'Used' number -- would just want to compare > with free -m results... > > Scott > > > On Tue, Jul 29, 2008 at 3:47 PM, Smith, Ann (ISD, IT) < > [EMAIL PROTECTED]> wrote: > >> Response from swapon -s >> >> swapon -s >> Filename Type Size Used >> Priority >> /dev/dasdb1 partition 297492 0 >> 42 >> /dev/dasdbh1 partition 297492 0 >> 42 >> /dev/dasdbg1 partition 297492 0 >> 42 >> /dev/dasdbf1 partition 297492 0 >> 42 >> >> I'm a bit concerned that Used shows 0. >> The size looks good. >> Bottom line is I increased the swap disks substantially so that I could >> decrease the virtual storage (from 512M down to 128M). But according to >> the tomcat logs the out of memory problem is back. >> >> >> >> -----Original Message----- >> From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of >> Scott Rohling >> Sent: Tuesday, July 29, 2008 5:36 PM >> To: LINUX-390@VM.MARIST.EDU >> Subject: Re: How to increase swap V-disk sizes >> >> Then there's nothing you should need to do but restart the server.. see >> my previous post if you're trying to do it dynamically without >> restarting.. >> >> Do the swapon -s to determine what swap disks are being used.. >> >> Scott >> >> On Tue, Jul 29, 2008 at 3:33 PM, Smith, Ann (ISD, IT) < >> [EMAIL PROTECTED]> wrote: >> >> > Yes. I think the server had swap disks. I just want to increase the >> > size of the V-disks. I increased them as far as VM is concerned. >> > >> > -----Original Message----- >> > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of >> > Scott Rohling >> > Sent: Tuesday, July 29, 2008 5:28 PM >> > To: LINUX-390@VM.MARIST.EDU >> > Subject: Re: How to increase swap V-disk sizes >> > >> > A little confused because you seem to be indicating the swap disks are >> >> > used, but are asking how to get Linux to use them? >> > >> > Anyway -- your swap disks are probably defined in /etc/fstab - so >> > check there to ensure they are all mounted as swap. If you've added >> > any disks, add the appropriate line to the fstab. >> > >> > To see what's in use: swapon -s >> > >> > Hope that helps.. >> > >> > Scott Rohling >> > >> > On Tue, Jul 29, 2008 at 3:19 PM, Smith, Ann (ISD, IT) < >> > [EMAIL PROTECTED]> wrote: >> > >> > > I have a SLES10 server that is running a java app using tomcat5 and >> > > is >> > >> > > hitting out of memory conditions. >> > > I bumped up the virtual storage in the VM directory and found the >> > > out of memory problem went away. >> > > Now I want to bump the virtual storage back down but instead >> > > increase the size of the V-disks being used for SWAP. I saw that >> > > this server had >> > > 4 V-DISK MDISK statements. I increased each of the 4 minidisks from >> > > 200000 blks to 600000 blks: >> > > MDISK 0293 FB-512 V-DISK 600000 MR LINUX SWAPAREA DASDDA MDISK >> > > 050D >> > > FB-512 V-DISK 600000 MR LINUX SWAPAREA DASDDA MDISK 050C FB-512 >> > > V-DISK 600000 MR LINUX SWAPAREA DASDDA MDISK 050B FB-512 V-DISK >> > > 600000 MR LINUX SWAPAREA DASDDA I also found the swap disks get >> > > formatted in the PROFILE EXEC: >> > > For example: >> > > queue '1' >> > > queue 'LXSWAP' >> > > 'FORMAT 293 E ( BLK 512 ' >> > > if rc <> 0 then exit rc >> > > I rebooted the server (test server that I can reboot as needed). >> > > cat /proc/dasd/devices does show the size increase For example: >> > > 0.0.050b(FBA ) at ( 94: 228) is dasdbf : active at blocksize: >> > > 512, 600000 blocks, 292 MB >> > > >> > > What do I need to do on the SLES10 server to get it to use the >> > > V-DISK's for swap and is there a command to query swap in use? >> > > >> > > >> > > >> > > >> > > Ann Smith >> > > Mainframe Systems Support -zVM and zLinux Support Integrated >> > > Technology Delivery IBM Global Service Integrated Operations At The >> > > Hartford Work phone: 860-547-6110 >> > > Pager: 800-204-6367 >> > > Email: mailto:[EMAIL PROTECTED] >> > > >> > > >> > > >> > > >> > > >> > > ******************************************************************** >> > > ** >> > > *** This communication, including attachments, is for the exclusive >> > > use of addressee and may contain proprietary, confidential and/or >> > > privileged information. 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