My only observation at this point is, something changed, therefore, something else changed.
If you have not changed the level or configuration of the server or client software, then something outside of changed. I hope your reboot helps. George H. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Loon, EJ van - SPLXM Sent: Monday, October 05, 2009 6:46 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Migration problem Hi George! I do not want to treat one client different that the other one. Years of experience with TSM taught me one thing: if you want to run a TSM environment with a minimum amount of people and attention, you should create an environment with as little management classes, policies an deviceclasses as possible! I have to mention that this TSM environment has been running fine for about two years now and nothing has changed. The strange migration behavior is something that started about a few days ago. I scheduled a stop/start of this server, so let's see what that brings. Thanks!!!! Kind regards, Eric van Loon KLM Royal Dutch Airlines -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Huebschman, George J. Sent: maandag 5 oktober 2009 12:02 To: ADSM-L@VM.MARIST.EDU Subject: Re: Migration problem It sounds a lot like TSM is allocating space in your disk pool for a lot of data from many clients and finding itself maxed out. It is not always how much data is actually on the media, but how much space TSM has allocated per client. - Have you considered setting up larger clients to go directly to Virtual Tape? If you want data to go to VTL right away, send it there. If you have 30 VTL drives, find the 10 or 15 clients with the biggest sized files put them in a domain with a default management class that points directly to VTL...or edit the include statements of the clients (any client)to point the biggest files to a Virtual Tape management class. The second way does not require a new domain, but it requires more work with clients.) - I would also raise your threshold a bit so that you are not continually in migration. George Huebschman Media Librarian Legg Mason -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Loon, EJ van - SPLXM Sent: Monday, October 05, 2009 4:47 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Migration problem Hi Remco! The high treshold is set to 5 because we want the data to go to virtual tape a.s.a.p. This weekend the diskpool went to 100% again because of the strange migration behavoir. The pool contained data from 100+ clients, but still no more than 2 migrations were running.... The tape deviceclass has mountlimit=drives which is 30 drives. Kindest regards, Eric van Loon KLM Royal Dutch Airlines -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Remco Post Sent: vrijdag 2 oktober 2009 17:10 To: ADSM-L@VM.MARIST.EDU Subject: Re: Migration problem Have you ever considered increasing the high threshold? IIRC TSM won't start new automig processes when migration is already running, and will only start as many processes as there are different clients having data in your pool. Also, check out your mountlimit on the tape devclass..... Furthermore, your disk pool might not be fast enough to keep your drives streaming. -- Met vriendelijke groeten, Remco Post r.p...@plcs.nl +31 6 248 21 622 ********************************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. 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This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ********************************************************************** IMPORTANT: E-mail sent through the Internet is not secure. Legg Mason therefore recommends that you do not send any confidential or sensitive information to us via electronic mail, including social security numbers, account numbers, or personal identification numbers. Delivery, and or timely delivery of Internet mail is not guaranteed. Legg Mason therefore recommends that you do not send time sensitive or action-oriented messages to us via electronic mail. This message is intended for the addressee only and may contain privileged or confidential information. Unless you are the intended recipient, you may not use, copy or disclose to anyone any information contained in this message. If you have received this message in error, please notify the author by replying to this message and then kindly delete the message. Thank you.
