Re: www.vm.ibm.com outage
On Mon, Jun 30, 2008 at 3:17 PM, Brian Wade [EMAIL PROTECTED] wrote: Our site www.vm.ibm.com will be down Thursday, July 3, 2008, 9 PM EDT to Sunday, July 6, 2008, 12:00 noon EDT, for maintenance on the chilled water systems on our raised floor. Did it run out of water already? It's July 3, 6 AM EDT and I really need some stuff... Rob
Re: www.vm.ibm.com outage
It's working OK for me. Rob van der Heij wrote: On Mon, Jun 30, 2008 at 3:17 PM, Brian Wade [EMAIL PROTECTED] wrote: Our site www.vm.ibm.com will be down Thursday, July 3, 2008, 9 PM EDT to Sunday, July 6, 2008, 12:00 noon EDT, for maintenance on the chilled water systems on our raised floor. Did it run out of water already? It's July 3, 6 AM EDT and I really need some stuff... Rob -- Rich Smrcina VM Assist, Inc. Phone: 414-491-6001 Ans Service: 360-715-2467 rich.smrcina at vmassist.com http://www.linkedin.com/in/richsmrcina Catch the WAVV! http://www.wavv.org WAVV 2009 - Orlando, FL - May 15-19, 2009
Re: www.vm.ibm.com outage
Also don't forget http://web.archive.org/web/*/http://www.vm.ibm.com might have what you want i -- Original Message -- Received: Thu, 03 Jul 2008 12:43:02 PM BST From: Rob van der Heij [EMAIL PROTECTED] To: IBMVM@LISTSERV.UARK.EDU Subject: Re: www.vm.ibm.com outage On Thu, Jul 3, 2008 at 1:14 PM, Rich Smrcina [EMAIL PROTECTED] wrote: It's working OK for me. Back for me again. I guess I still have a few hours to get what I need from there. Rob
z/VM 5.3 and PAV
We are currently running a single z/VM 5.3 (701) system on Hitachi 7700E disk, set up as 3390-3, connected to a z9BC via ESCON. This has worked well, but the limited disk storage has kept us from growing past the 15 RH Linux guests. We are in the process of installing a new Hitachi USP V that will give us the storage capability to use some M9 and M27 for some of the new servers that are planned. With those volume sizes I am anticipating that we will need to utilize PAV for some applications. We don't have any prior experience or knowledge other than what the manuals tell us. Everything I have found on the subject so far has been pretty generic. We were looking at Hyper-PAV or possibly dynamic. Will dynamic PAV work for z/VM 5.3? Can anyone share any experiences or their particular application? (Volumes? Minidisks? Particular applications i.e. DB2, etc?) Appreciate any and all input. Dave
Re: z/VM 5.3 and PAV
On Thursday, 07/03/2008 at 09:39 EDT, Dave Yarris [EMAIL PROTECTED] wrote: We are currently running a single z/VM 5.3 (701) system on Hitachi 7700E disk, set up as 3390-3, connected to a z9BC via ESCON. This has worked well, but the limited disk storage has kept us from growing past the 15 RH Linux guests. We are in the process of installing a new Hitachi USP V that will give us the storage capability to use some M9 and M27 for some of the new servers that are planned. With those volume sizes I am anticipating that we will need to utilize PAV for some applications. We don't have any prior experience or knowledge other than what the manuals tell us. Everything I have found on the subject so far has been pretty generic. We were looking at Hyper-PAV or possibly dynamic. Will dynamic PAV work for z/VM 5.3? Can anyone share any experiences or their particular application? (Volumes? Minidisks? Particular applications i.e. DB2, etc?) Appreciate any and all input. Before you go to all that work, verify that you have a problem that PAV will solve: I/O queuing in CP on the RDEV. Your performance monitor will tell you that. Alan Altmark z/VM Development IBM Endicott
Re: z/VM 5.3 and PAV
Alan, I suppose the reason you say Before you go to all that work ... is because z/VM (unfortunately) does *not* support dynamic PAV. Which means the only way you can leverage or take advantage of PAV on z/VM is to hard code the PAV aliases in the DASD subsystem. (This is the reason we no longer have access to PAV volumes on our z/VM systems ... because no one wants to do the work configure the DASD subsystem when z/OS will do this all dynamically.) JR (Steven) Imler CA Senior Software Engineer Tel: +1 703 708 3479 Fax: +1 703 708 3267 [EMAIL PROTECTED] -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Alan Altmark Sent: Thursday, July 03, 2008 09:49 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: z/VM 5.3 and PAV On Thursday, 07/03/2008 at 09:39 EDT, Dave Yarris [EMAIL PROTECTED] wrote: We are currently running a single z/VM 5.3 (701) system on Hitachi 7700E disk, set up as 3390-3, connected to a z9BC via ESCON. This has worked well, but the limited disk storage has kept us from growing past the 15 RH Linux guests. We are in the process of installing a new Hitachi USP V that will give us the storage capability to use some M9 and M27 for some of the new servers that are planned. With those volume sizes I am anticipating that we will need to utilize PAV for some applications. We don't have any prior experience or knowledge other than what the manuals tell us. Everything I have found on the subject so far has been pretty generic. We were looking at Hyper-PAV or possibly dynamic. Will dynamic PAV work for z/VM 5.3? Can anyone share any experiences or their particular application? (Volumes? Minidisks? Particular applications i.e. DB2, etc?) Appreciate any and all input. Before you go to all that work, verify that you have a problem that PAV will solve: I/O queuing in CP on the RDEV. Your performance monitor will tell you that. Alan Altmark z/VM Development IBM Endicott
Re: Best method
Thanks Dave But does the script file need another product like DCF(?) to format it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Wednesday, July 02, 2008 9:16 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Jim, the documentation on how to use the vmserve package is included in the vmarc file. Look for the VMSERVE SCRIPT file. Dodds, Jim wrote: Is there any documentation on how to use this or must we spend time trying to figure out what it does and how it does it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Cal Fisher Sent: Tuesday, July 01, 2008 5:55 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Hi David Go to the VM download site http://www.vm.ibm.com/download/ and get the vmserve package. It uses wakeup and will do just about anything you will ever want your service machine to do. I have used this for years and I am very happy with it. Cal Fisher My tour in the Navy The MVMUA website -- DJ V/Soft z/VM and mainframe Linux expertise, training, consulting, and software development www.vsoft-software.com
Re: www.vm.ibm.com outage
On Jul 3, 2008, at 5:04 AM, Rob van der Heij wrote: On Mon, Jun 30, 2008 at 3:17 PM, Brian Wade [EMAIL PROTECTED] wrote: Our site www.vm.ibm.com will be down Thursday, July 3, 2008, 9 PM EDT to Sunday, July 6, 2008, 12:00 noon EDT, for maintenance on the chilled water systems on our raised floor. Did it run out of water already? It's July 3, 6 AM EDT and I really need some stuff... Addiction is an ugly thing. Adam
Re: www.vm.ibm.com outage
Yeah, and apparently reported by the voice of cough experience, right? ;-) cough, cough Mike Walter And before our moderator chimes in: focus mea culpa Adam Thornton [EMAIL PROTECTED] Sent by: The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU 07/03/2008 09:14 AM Please respond to The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU To IBMVM@LISTSERV.UARK.EDU cc Subject Re: www.vm.ibm.com outage On Jul 3, 2008, at 5:04 AM, Rob van der Heij wrote: On Mon, Jun 30, 2008 at 3:17 PM, Brian Wade [EMAIL PROTECTED] wrote: Our site www.vm.ibm.com will be down Thursday, July 3, 2008, 9 PM EDT to Sunday, July 6, 2008, 12:00 noon EDT, for maintenance on the chilled water systems on our raised floor. Did it run out of water already? It's July 3, 6 AM EDT and I really need some stuff... Addiction is an ugly thing. Adam The information contained in this e-mail and any accompanying documents may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message, including any attachments. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited. All messages sent to and from this e-mail address may be monitored as permitted by applicable law and regulations to ensure compliance with our internal policies and to protect our business. E-mails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, lost or destroyed, or contain viruses. You are deemed to have accepted these risks if you communicate with us by e-mail.
Re: z/VM 5.3 and PAV
I don't know anything about the HDS storage, presumably your new box is FICON? So you should see a world of difference there. We run mod 3s, 9s, 27s, 54s. All without PAV. All on DS8300. We don't see any performance issues at all. The performance problem that PAV solves is queueing on the UCB.Now, I probably wouldn't stick all the 300 CMS users going after the same focus database on 1 mod 54, but for a linux server, I think they make sense. How many I/Os could 1 guest managed to get queued to that volume? I think i'll just be having them add all new stuff as 54 (65,520 cyl). (except paging volumes which we'll probalby keep as 3's). Marcy Cortes This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation. From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Yarris Sent: Thursday, July 03, 2008 6:39 AM To: IBMVM@LISTSERV.UARK.EDU Subject: [IBMVM] z/VM 5.3 and PAV We are currently running a single z/VM 5.3 (701) system on Hitachi 7700E disk, set up as 3390-3, connected to a z9BC via ESCON. This has worked well, but the limited disk storage has kept us from growing past the 15 RH Linux guests. We are in the process of installing a new Hitachi USP V that will give us the storage capability to use some M9 and M27 for some of the new servers that are planned. With those volume sizes I am anticipating that we will need to utilize PAV for some applications. We don't have any prior experience or knowledge other than what the manuals tell us. Everything I have found on the subject so far has been pretty generic. We were looking at Hyper-PAV or possibly dynamic. Will dynamic PAV work for z/VM 5.3? Can anyone share any experiences or their particular application? (Volumes? Minidisks? Particular applications i.e. DB2, etc?) Appreciate any and all input. Dave
Re: Best method
You can use B2H to convert a Script file to HTML. B2H lives on VM's download lib 2008/7/3 Dave Jones [EMAIL PROTECTED]: Hi, Jim. Yes, it doesbut you're in luck.I have DCF here, and I will format the SCRIPT file and send you a copy. What output format do you prefer: LISTING or LIST3820? Hm..I might be able to convert it to PDF as well. Dodds, Jim wrote: Thanks Dave But does the script file need another product like DCF(?) to format it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Wednesday, July 02, 2008 9:16 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Jim, the documentation on how to use the vmserve package is included in the vmarc file. Look for the VMSERVE SCRIPT file. Dodds, Jim wrote: Is there any documentation on how to use this or must we spend time trying to figure out what it does and how it does it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Cal Fisher Sent: Tuesday, July 01, 2008 5:55 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Hi David Go to the VM download site http://www.vm.ibm.com/download/ and get the vmserve package. It uses wakeup and will do just about anything you will ever want your service machine to do. I have used this for years and I am very happy with it. Cal Fisher My tour in the Navy The MVMUA website -- DJ V/Soft z/VM and mainframe Linux expertise, training, consulting, and software development www.vsoft-software.com -- Kris Buelens, IBM Belgium, VM customer support
Re: z/VM 5.3 and PAV
The z/VM 5.3 announcement letter states that it includes HyperPAV support for IBM System Storage DS8000. So - if you have a DS8000, then you have the dynamic PAV support. However, as far as I know, 5.3 does not virtualize HyperPAV, so a guest can't use it directly, although it can take advantage of VM's use of it for minidisk I/O. On Thu, Jul 3, 2008 at 10:01 AM, Imler, Steven J [EMAIL PROTECTED] wrote: Alan, I suppose the reason you say Before you go to all that work ... is because z/VM (unfortunately) does *not* support dynamic PAV. Which means the only way you can leverage or take advantage of PAV on z/VM is to hard code the PAV aliases in the DASD subsystem. (This is the reason we no longer have access to PAV volumes on our z/VM systems ... because no one wants to do the work configure the DASD subsystem when z/OS will do this all dynamically.) JR (Steven) Imler CA Senior Software Engineer Tel: +1 703 708 3479 Fax: +1 703 708 3267 [EMAIL PROTECTED] -- Bruce Hayden Linux on System z Advanced Technical Support IBM, Endicott, NY
Scheduling Software to interface between zVM, zLinux zOS
Does anyone have a recommendation for a scheduling tool that will communicate between zOS and VM and/or a Linux guest? We are new to VM an d Linux and are wondering if we can trigger jobs on one system based on conditions on another system. Does anyone do this currently and if so, what do you use? Thanks, Karla Karla Cope Sr. Systems Programmer J.B. Hunt Transport, Inc. 479-820-8714
Re: z/VM 5.3 and PAV
Be sure to carefully read what Alan wrote: I/O queuing in CP on the RDEV. That is: if you have a guest (like Linux, z/OS, or even SFS and DB2/VM) it will start only one I/O at a time to a device (the architecture doesn't allow more). The guest can have a queue too (on its virtual device that is), CP's PAV support can't help here. The queue in the guest cannot be seen by CP's performance monitor. To profit of PAV, guests need PAV support themselves and you have to attach base plus alias addresses to the guest. Futhermore: when dataspaces are used, CP's paging routines perform the I/O, and CP's paging doesn't use PAV... 2008/7/3 Bruce Hayden [EMAIL PROTECTED]: The z/VM 5.3 announcement letter states that it includes HyperPAV support for IBM System Storage DS8000. So - if you have a DS8000, then you have the dynamic PAV support. However, as far as I know, 5.3 does not virtualize HyperPAV, so a guest can't use it directly, although it can take advantage of VM's use of it for minidisk I/O. On Thu, Jul 3, 2008 at 10:01 AM, Imler, Steven J [EMAIL PROTECTED] wrote: Alan, I suppose the reason you say Before you go to all that work ... is because z/VM (unfortunately) does *not* support dynamic PAV. Which means the only way you can leverage or take advantage of PAV on z/VM is to hard code the PAV aliases in the DASD subsystem. (This is the reason we no longer have access to PAV volumes on our z/VM systems ... because no one wants to do the work configure the DASD subsystem when z/OS will do this all dynamically.) JR (Steven) Imler CA Senior Software Engineer Tel: +1 703 708 3479 Fax: +1 703 708 3267 [EMAIL PROTECTED] -- Bruce Hayden Linux on System z Advanced Technical Support IBM, Endicott, NY -- Kris Buelens, IBM Belgium, VM customer support
Re: z/VM 5.3 and PAV
Appreciate all of the responses so far. The Hitachi UPS V is relatively new on the market and was not ordered with any PAV in the initial buy. Yesit will be FICON attached and serve two z/OS LPARs along with a z/VM system with two IFLs. I have read the z/VM 5.3 enhancement notes talking about Hyper-PAV support. I just couldn't find anythingor anyone.that talked about dynamic PAV. I did find a paper that talked about how to do dynamic PAV with 5.1 or 5.2, but it looked real messy. The 5.3 CP Planning and Admin book outlines PAV pretty well, but seems to be generic as far as which type of PAV is being discussed. We would obviously like to do Hyper over anything else for all of the obvious work intensive reasons. I don't really have any way to test whether we are going to have I/O queueing problems since we can only do 3390-3 right now. The UPS V is still in install process and the planned servers after that. Trying to think logically, by running larger volumes with ..for example...a DB2 database on a M9 or M27 accessible to 30k+ users might be a problem without PAV. We would like to do it up front instead of catch up later.
Re: Scheduling Software to interface between zVM, zLinux zOS
Hi, Karla. I believe CA has some tools that allow their z/OS scheduling software to initiate and control 'batch' jobs on Linux. You might want to take a look there. Karla Cope wrote: Does anyone have a recommendation for a scheduling tool that will communicate between zOS and VM and/or a Linux guest? We are new to VM and Linux and are wondering if we can trigger jobs on one system based on conditions on another system. Does anyone do this currently and if so, what do you use? Thanks, Karla Karla Cope Sr. Systems Programmer J.B. Hunt Transport, Inc. 479-820-8714 -- DJ V/Soft z/VM and mainframe Linux expertise, training, consulting, and software development www.vsoft-software.com
Re: Scheduling Software to interface between zVM, zLinux zOS
Karla, We have a product here called FDR/Upstream which is used for backups from various platforms. We found that is not only does backups but can issue commands to run on various platforms. SO here's what we do - 1. CA-7 is our batch production job scheduler that runs on z/OS. 2. Upstream is running on z/OS as well. 3. Upstream client is running on a linux image under z/VM. 4. We connect our Upstream server on z/OS and our Upstream client on Linux under z/VM via Hipersockets. Thos you could go straight IP if needed. 5. CA-7 submits batch jobs that execute the Upstream program to do one of the following - a. Move a file from linux to z/OS b. Move a file from z/OS to linux c. Execute scripts that we have on our linux image to perform what ever. ie - execute a sftp wrapper script to move ftp files. or execute a pgp encryption on the file and then ftp it. The batch job submitted could have many steps and for each upstream step, it will wait until it gets acknowledgement back before the next step kicks off. We do condition code checking and upstream had a jobreturncode map that we're starting to use as well. At 11:45 AM 7/3/2008, Karla Cope wrote: Does anyone have a recommendation for a scheduling tool that will communicate between zOS and VM and/or a Linux guest? We are new to VM an d Linux and are wondering if we can trigger jobs on one system based on conditions on another system. Does anyone do this currently and if so, what do you use? Thanks, Karla Karla Cope Sr. Systems Programmer J.B. Hunt Transport, Inc. 479-820-8714 Brian W. France Systems Administrator (Mainframe) Pennsylvania State University Administrative Information Services - Infrastructure/SYSARC Rm 25 Shields Bldg., University Park, Pa. 16802 814-863-4739 [EMAIL PROTECTED] To make an apple pie from scratch, you must first invent the universe. Carl Sagan
Re: Best method
Folks, if anyone is interested, I now have the VMSERVE documentation formated as an IBM BookReader *.boo file. Youn should be able to read it using any of the current Bookreader products (z/OS, z/VM, Windows, etc.). If anyone would like a copy, drop me a note (off list, please) Dodds, Jim wrote: Thanks Dave But does the script file need another product like DCF(?) to format it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Wednesday, July 02, 2008 9:16 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Jim, the documentation on how to use the vmserve package is included in the vmarc file. Look for the VMSERVE SCRIPT file. Dodds, Jim wrote: Is there any documentation on how to use this or must we spend time trying to figure out what it does and how it does it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Cal Fisher Sent: Tuesday, July 01, 2008 5:55 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Hi David Go to the VM download site http://www.vm.ibm.com/download/ and get the vmserve package. It uses wakeup and will do just about anything you will ever want your service machine to do. I have used this for years and I am very happy with it. Cal Fisher My tour in the Navy The MVMUA website -- DJ V/Soft z/VM and mainframe Linux expertise, training, consulting, and software development www.vsoft-software.com
Re: Best method
Listing or PDF which ever is easiest for you. Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Thursday, July 03, 2008 10:42 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Hi, Jim. Yes, it doesbut you're in luck.I have DCF here, and I will format the SCRIPT file and send you a copy. What output format do you prefer: LISTING or LIST3820? Hm..I might be able to convert it to PDF as well. Dodds, Jim wrote: Thanks Dave But does the script file need another product like DCF(?) to format it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Wednesday, July 02, 2008 9:16 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Jim, the documentation on how to use the vmserve package is included in the vmarc file. Look for the VMSERVE SCRIPT file. Dodds, Jim wrote: Is there any documentation on how to use this or must we spend time trying to figure out what it does and how it does it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Cal Fisher Sent: Tuesday, July 01, 2008 5:55 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Hi David Go to the VM download site http://www.vm.ibm.com/download/ and get the vmserve package. It uses wakeup and will do just about anything you will ever want your service machine to do. I have used this for years and I am very happy with it. Cal Fisher My tour in the Navy The MVMUA website -- DJ V/Soft z/VM and mainframe Linux expertise, training, consulting, and software development www.vsoft-software.com
Re: Best method
I've sent the *.boo format for the VMSERVE applicationdo you still need a listing or PDF format version as well? Dodds, Jim wrote: Listing or PDF which ever is easiest for you. Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Thursday, July 03, 2008 10:42 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Hi, Jim. Yes, it doesbut you're in luck.I have DCF here, and I will format the SCRIPT file and send you a copy. What output format do you prefer: LISTING or LIST3820? Hm..I might be able to convert it to PDF as well. Dodds, Jim wrote: Thanks Dave But does the script file need another product like DCF(?) to format it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Dave Jones Sent: Wednesday, July 02, 2008 9:16 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Jim, the documentation on how to use the vmserve package is included in the vmarc file. Look for the VMSERVE SCRIPT file. Dodds, Jim wrote: Is there any documentation on how to use this or must we spend time trying to figure out what it does and how it does it? Jim Dodds Systems Programmer Kentucky State University 400 East Main Street Frankfort, Ky 40601 502 597 6114 -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Cal Fisher Sent: Tuesday, July 01, 2008 5:55 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Best method Hi David Go to the VM download site http://www.vm.ibm.com/download/ and get the vmserve package. It uses wakeup and will do just about anything you will ever want your service machine to do. I have used this for years and I am very happy with it. Cal Fisher My tour in the Navy The MVMUA website -- DJ V/Soft z/VM and mainframe Linux expertise, training, consulting, and software development www.vsoft-software.com
Re: z/VM 5.3 and PAV
Are you concerned you'll need PAV as you consolidate current volumes? or as you grow current workloads? If the former, I'd suggest looking at some statistics like I/O rate per GB of disk storage. For example if you are doing 15 I/Os a second on a 2.7GB disk, that's 5.6 I/Os/GB. If you are then going to configure your new volumes as 24GB volumes then on average you'd have 134.4 I/Os per second for the volumes. Ask your vendor about whether that would be significant enough to warrant PAV. It's been my experience that most VM shops do not need PAV for large number of volumes in the same way as they do in z/OS shops. If you do need PAV, a couple sources of additional information include: http://www.vm.ibm.com/storman/pav/index.html http://www.vm.ibm.com/devpages/farman/WAVVPAV.PDF http://www.vm.ibm.com/perf/reports/zvm/html/530hpav.html http://www.vm.ibm.com/perf/reports/zvm/html/520pav.html Bill Bitner
Re: z/VM 5.3 and PAV
Well ... for me ... it's not an issue of what benefit having a PAV alias(es) for a given volume might yield. It's a question of support and toleration (for example, will VM:Backup or HiDRO back the BASE up and erroneously back the potential PAV alias(es) too?). So, up until recently (6 months ago or so [we did a huge DASD migration]), each time our storage group got a new disk array (IBM or Hitachi, whatever), they would hard-code PAV alias addresses into the DASD subsystem ... because z/OS needed that. When this was done, z/VM 5.3 could see and use the PAV alias(es) (for non-z/OS volumes too). However, now, z/OS does not require that PAV alias(es) be defined to the disk array (hard coded in the DASD subsystem) with the newer DASD subsystems ... z/OS (I think via WLM) can *dynamically define* PAV aliases to alleviate I/O contention ... the PAV aliases do not need to be pre-defined or hard-coded in the DASD subsystem/configuration. (This is why our storage group no longer defines the PAV alias addresses to the DASD subsystem ... and won't for z/VM.) Please correct me if I'm wrong, but z/VM still requires the PAV alias(es) to be hard-coded/pre-defined to the DASD subsystem ... HyperPAV support or whatever in z/VM. Otherwise, z/VM can not support PAV aliases. This is what we've experienced at our site. If there's something we are missing in the z/VM support, please let me know. Thanks, JR JR (Steven) Imler CA Senior Software Engineer Tel: +1 703 708 3479 Fax: +1 703 708 3267 [EMAIL PROTECTED] -Original Message- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Bill Bitner Sent: Thursday, July 03, 2008 04:52 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: z/VM 5.3 and PAV Are you concerned you'll need PAV as you consolidate current volumes? or as you grow current workloads? If the former, I'd suggest looking at some statistics like I/O rate per GB of disk storage. For example if you are doing 15 I/Os a second on a 2.7GB disk, that's 5.6 I/Os/GB. If you are then going to configure your new volumes as 24GB volumes then on average you'd have 134.4 I/Os per second for the volumes. Ask your vendor about whether that would be significant enough to warrant PAV. It's been my experience that most VM shops do not need PAV for large number of volumes in the same way as they do in z/OS shops. If you do need PAV, a couple sources of additional information include: http://www.vm.ibm.com/storman/pav/index.html http://www.vm.ibm.com/devpages/farman/WAVVPAV.PDF http://www.vm.ibm.com/perf/reports/zvm/html/530hpav.html http://www.vm.ibm.com/perf/reports/zvm/html/520pav.html Bill Bitner
Re: Best method
Dave - I would like to snag a copy. Thanks, /Fran Francis J. Hensler, CCP Yes, Virginia, there is a Slippery Rock Software Support Specialist mailto:[EMAIL PROTECTED] Administrative Info Systems Tech http://zvm.sru.edu/~fjh Slippery Rock University of PA http://www.sru.edu 200 Maltby Center; 1 Morrow Way Voice: +1.724.738.2153 Slippery Rock, PA 16057-1313 USAFAX: +1.724.738.4483 --- On Thu, 3 Jul 2008 11:30:18 -0500 Dave Jones said: Folks, if anyone is interested, I now have the VMSERVE documentation formated as an IBM BookReader *.boo file. Youn should be able to read it using any of the current Bookreader products (z/OS, z/VM, Windows, etc.). If anyone would like a copy, drop me a note (off list, please)
