Re: Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread Thomas Kern
That is what I have done on real systems (ORACLE RAC) running OEL5 where external access was on one NIC and inter-RAC communications was on an internal network through another NIC. I had to put a GATEWAY= statement in each icfcfg-ethx file and I had the DEFAULT gateway listed in the /etc/syscon

Re: Spiking server

2011-03-03 Thread Rob van der Heij
On Thu, Mar 3, 2011 at 6:11 PM, Gaylord Toneff wrote: > > The highest priority swap should always be VDISK (not real disk). > Save the real disk for a small contingency (with the lowest priority) in > case you run out of both MEM and VDISK swap. > Why would you want to use a real disk? (other th

Re: Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread David Boyes
On 3/3/11 2:35 PM, "Michael MacIsaac" wrote: >I'm asking this question on the behalf of a customer: >I have this set up fine as far as VM is concerned, and have eth0 and eth1 >defined on Linux (RHEL 5.5). >My problem is that the networks defined by eth0 and eth1 have different >gateway addresses,

TSM server

2011-03-03 Thread Melancon, Ruddy
We are in the process of bringing up a Tivoli Storage Manager [TSM] server using zLinux [SLES11] under zVM [6.2]. We are going to use the IBM7650G with XIV back end storage to provide Virtual Tape. The idea is to backup intel servers directly to tape then replicate to remote DR site. We have

Re: Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread Christian Paro
That case (of wanting to load-balance traffic between two or more network interfaces which can all access the same destinations) could be handled by network interface bonding - but then you'd have only one IP address and subnet for the entire bond. Different issue. I think Mike's customer was havi

Re: Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread McKown, John
I think what is wanted may be something like: eth0 goes to LAN-A (10.170.0.0/16) while eth1 to to LAN-B (10.171.0.0/16). But both LANs have their own separate gateway which connects to the world-wide Internet. So the customer wants be be able to use either eth0 or eth1 when the destination is on

Re: Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread Christian Paro
A system can only have one default interface. But it should only be falling back to default when one of the more specific routes have not been met. So if I have a system like this: # route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 9.1.2.3 * 255.255.255.128 U 0

Re: Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread Pat Carroll
Mike, Has the customer tried to put the appropriate GATEWAY= statement in each ifcfg_ethx? PC Patrick Carroll | Technology Architect II L.L.Bean, Inc.(r) | Double L St. | Freeport ME 04033 http://www.llbean.com | pcarr...@llbean.com | 207.552.2426 CONFIDENTIALITY NOTICE: This e-mail an

Re: Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread Quay, Jonathan (IHG)
In your routing table, route the appropriate networks out the appropriate gateways and interfaces. Or run a routing protocol daemon. -Original Message- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Michael MacIsaac Sent: Thursday, March 03, 2011 2:36 PM To: LINUX-

Using 2 NIC addresses to different networks on different VSWITCHes

2011-03-03 Thread Michael MacIsaac
I'm asking this question on the behalf of a customer: I have this set up fine as far as VM is concerned, and have eth0 and eth1 defined on Linux (RHEL 5.5). My problem is that the networks defined by eth0 and eth1 have different gateway addresses, but when both interfaces are brought up, the defaul

Re: Spiking server

2011-03-03 Thread Eddie Chen
During the 45000 hit/hr how many threads was created by APACHE. You should also look at I/O activities for dasda2, chances are is at 100. There are some apache perforamce you can do, one of them is proxy for static page. - Original Message - From: van Sleeuwen, Berry [mailto:berry

Re: Spiking server

2011-03-03 Thread David Boyes
On 3/3/11 9:49 AM, "Bauer, Bobby (NIH/CIT) [E]" wrote: >Thanks Berry, yes it did crash with all swap space used. We doubled the >memory but adding another swap space may keep it from crashing. Making the virtual machine bigger is probably making things worse. With real memory that constrained,

Re: Spiking server

2011-03-03 Thread Gaylord Toneff
The highest priority swap should always be VDISK (not real disk). Save the real disk for a small contingency (with the lowest priority) in case you run out of both MEM and VDISK swap. Gaylord Toneff IBM Global Services gton...@us.ibm.com Member, z/Linux Commercial Account Support Kaiser Permanen

Re: EDEV FBA disks and Cloning

2011-03-03 Thread Craig Collins
FYI - the problem we were having with the boot.findself script had to do with upper/lower case matching issues when the script interrogated the sles11 parameter files searching for the source and destination server names and ip addresses. So, the script worked fine once we matched the cases to wha

Re: EDEV FBA disks and Cloning

2011-03-03 Thread Craig Collins
the script does have the "sync" command executing after the copy with "dd" completes -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visi

Re: EDEV FBA disks and Cloning

2011-03-03 Thread Mark Post
>>> On 3/3/2011 at 11:29 AM, Craig Collins wrote: > So, we have a method to make the clone, but the clonerw.sh script doesn't > seem to work with this disk without further modifications that we can't > figure out at this point. Are you using the "sync" option on the dd command, or issuing a manu

Request for Enhancement Requests

2011-03-03 Thread Mark Post
Cross-posted to Linux-390, IBMVM and IBM-Main Once again, I'm looking for customer requirements to enhance our Linux for System z product. If you've ever had any "gee I wish SLES would do X" type of thoughts, please send those to me off-list. I'm primarily interested in things that would be s

Re: EDEV FBA disks and Cloning

2011-03-03 Thread Craig Collins
1. rebuilt the golden image, preparing the disk with CMS FORMAT & RESERVE on EDEV FBA mini-disks 2. prepared the clone system disk with CMS FORMAT & RESERVE on EDEV FBA mini-disks 3. Altered the clonerw.sh script so that it recognized the disk as FBA instead of CKD to get the device names and delet

Re: EDEV FBA disks and Cloning

2011-03-03 Thread Mark Post
>>> On 3/2/2011 at 03:47 PM, Richard Troth wrote: > There is a lot of confusion about 'dasdfmt' versus 'mkfs'. If you > already know the difference, please excuse this note. Rick, Do me a favor and stick this out on the wiki (after editing it a bit for style). I think this would be useful

Re: Spiking server

2011-03-03 Thread Rob van der Heij
On Thu, Mar 3, 2011 at 1:44 PM, Bauer, Bobby (NIH/CIT) [E] < baue...@mail.nih.gov> wrote: We have a Wordpress server that really spikes during certain, know times of > the month, about 45000 hits/hour. Its running on a single z9 IFL with only > 4G of memory on the lpar, z/VM 5.4, REHL 6 (yeah, I k

Re: Spiking server

2011-03-03 Thread Bauer, Bobby (NIH/CIT) [E]
Thanks Berry, yes it did crash with all swap space used. We doubled the memory but adding another swap space may keep it from crashing. We have limited the number of https threads, that was one of the first things we noticed when usage stared to ramp up. Bobby Bauer Center for Information Techn

Re: Spiking server

2011-03-03 Thread van Sleeuwen, Berry
Perhaps you can look at the threads for the application. We have a very small apache that is configured to have only a few childs and threads within the web server. Granted, it can't service as much threads simultaneously but the server doesn't abend due to memory problems. So the users connecting

Re: Spiking server

2011-03-03 Thread Bauer, Bobby (NIH/CIT) [E]
I'll look into it. So far cpu has only been about 45%. Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -Original Message- From: Scott Rohling [mailto:scott.rohl...@gmail.com] Sent: Thursday, March 03, 2011 8:23 AM To: LIN

Re: Spiking server

2011-03-03 Thread Scott Rohling
Have you done anything with SHARE settings for the guest? You can set either an absolute (% of CPU) or relative (xx relative to yy) minimum so this guest will get that much more CPU when it's needed... Scott Rohling On Mar 3, 2011 5:44am, "Bauer, Bobby (NIH/CIT) [E]" wrote: We have a Wordpress

Re: EDEV FBA disks and Cloning

2011-03-03 Thread Craig Collins
We created the golden image server on EDEV FBA disk as well so our clone is from EDEV FBA to EDEV FBA. I presume if we are using the CMS FORMAT/RESERVE sequence we should do so for the source golden image build as well as the clone system before copying. When we tried using dd to clone, I watched

Spiking server

2011-03-03 Thread Bauer, Bobby (NIH/CIT) [E]
We have a Wordpress server that really spikes during certain, know times of the month, about 45000 hits/hour. Its running on a single z9 IFL with only 4G of memory on the lpar, z/VM 5.4, REHL 6 (yeah, I know, more memory, good luck since we are a govt. agency). The user did not expect this kind