I have a 3583 with 3 LTO1 drives and 1 LTO3. I have 2 devclass's defined with FORMAT=ULTRIUMC and FORMAT=ULTRIUM3C and stgpools defined to use the specific type. I notice that if I had specified FORMAT=DRIVES, then it was possible that when asking for a scratch that I would get an LTO1 when I really wanted an LTO3 for that stgpool. The documentation does state that using mixed drive types you should not specify FORMAT=DRIVE.
The main problem I ran in to was that I was unable to issue any commands that would copy/move the data from LTO1 to LTO3. The process would sit in a waiting for mountpoint and never finish. I opened a PMR and it went all the way up to the developers. The PMR was closed as a documentation "fix" that said to FULLY support mixed drive types in a library you must logically partition the library to separate the drives in different partitions. They said that the algorithm for device allocation would need a significant overhaul so they were changing the documentation. This was probably about a year ago I posted this to ADSM-L. Try searching the archives for my posts. Bill Boyer "Experience is a comb nature gives us after we go bald." - ?? -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of CAYE PIERRE Sent: Sunday, June 03, 2007 6:32 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: Mixing drive types in logical library 3584 Well I forgot that, if the library is able to manage different cartridge type, everything is different. My experience is very limited and about STK Libraries (with ACSLS of course), and 358x libraries (3583/3584), with and without partitioning. It is also different when mixing LTO drives with other technologies. -----Message d'origine----- De : ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] De la part de Brian Matthias Envoyé : dimanche 3 juin 2007 03:52 À : ADSM-L@VM.MARIST.EDU Objet : Re: [ADSM-L] Mixing drive types in logical library 3584 You may have found your answer; however, there is a TSM Technote on libraries using mixed media. The Technote reference number is 1155662 Regards, Brian Matthias -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Chris McKay Sent: Wednesday, May 30, 2007 12:39 To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Mixing drive types in logical library 3584 Hi all, I have been told by IBM that fibre LTO2 drives are no longer available. We wish to expand the number of drives in our 3584 library from 2 to 5. The current 2 drives are fibre LTO2 drives, would it pose a problem by adding an additional 3 LTO3 drives to that logical library? Is it possible under Windows?? I realize I will need to continue to use LTO2 media, as the existing LTO2 drives would not be compatable with LTO3 media. Our TSM server is running on Windows 2003. Any input would be appreciated. Regards, Chris ______________________________________________ This message is for the sole use of the intended recipients and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not an intended recipient, please contact the sender by reply email and destroy all copies of the original message. Thank you for your cooperation.