Joni, Sorry, yes the URL I posted must have been specific to my search, and the results thrown away afteward. The whitepaper is called "EMC CLARiiON Backup Storage Solutions: The Value of CLARiiON Disk Library with TSM". If you log on to Powerlink, then search on "TSM CDL", one of the results coming back will be that whitepaper; I tried it earlier today to make sure they still had it.
Best Regards, John D. Schneider Sr. System Administrator - Storage Sisters of Mercy Health System 3637 South Geyer Road St. Louis, MO. 63127 Email: [EMAIL PROTECTED] Office: 314-364-3150, Cell: 314-486-2359 -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Joni Moyer Sent: Tuesday, June 05, 2007 1:18 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] How to Incorporate a CDL into TSM environment? Hi John, Thank you so much for all of the information! I have a lot of data to go through, but it is a tremendous help! I was just wondering what the name of the document you wrote is called? I tried the link and it said that it had moved on Powerlink. Thanks again! ******************************** Joni Moyer Highmark Storage Systems, Storage Mngt Analyst III Phone Number: (717)302-9966 Fax: (717) 302-9826 [EMAIL PROTECTED] ******************************** "Schneider, John" <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> 06/05/2007 10:56 AM Please respond to "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> To ADSM-L@VM.MARIST.EDU cc Subject Re: How to Incorporate a CDL into TSM environment? Joni, Disclaimer: Before the job I have now, I spent two years at EMC as a TSM consultant, helping customers use EMC products (including the CDL) in their TSM environment. I have implemented a lot of CDLs with TSM. I am still doing this at my current job. So if I seem biased in favor of this solution, well, I guess I am. I have two resources for you. The first is a whitepaper I was permitted to write while I was at EMC. You will need a Powerlink account to get access to it, but you can sign up for one for free if you don't have one already: https://powerlink.emc.com/nsepn/webapps/btg548664833igtcuup4826/km/live1 /en_US/Offering_Technical/White_Paper/H2095_TSM_WP_ldv.pdf?mtcs=ZXZlbnRU eXBlPUttQ2xpY2tTZWFyY2hSZXN1bHRzRXZlbnQsZG9jdW1lbnRJZD0wOTAxNDA2NjgwMTkw YWRhLGRhdGFTb3VyY2U9RENUTV9lbl9VU18w You can also find it in Powerlink using the search string "TSM CDL". It was the first link listed when I did it. That search will also give you lots of other valuable hits. The second is a Redbook from IBM about their VTL solution. There is a chapter in it specific to how a VTL can help in a TSM environment. Here is the link: http://www.redbooks.ibm.com/abstracts/sg247189.html?Open My favorite way to use the CDL with TSM is: 1) Design the solution and size the CDL so that most or all Primary storage pools can fit on the CDL. This will give you the most flexible solution, and the fastest restores. There is not a lot of advantage to a CDL if you only make is as big as your original disk storage pool would be. Don't think of it as a temporary holding place until the data can be migrated to tape the next day. Think of it as the tape library for your primary storage pools. 2) Emulate a IBM3584 library with LTO1 tape drives. Use the IBM driver for the library and tape drives. I have had excellent success on both AIX and Windows with that emulation working trouble free. The IBM3584 emulation can support up to 4096 slots and 72 tape drives, more than enough for most people's environment. 3) Don't be afraid to create enough virtual tape drives to solve the problem. Even in a small TSM server (30-50) clients, I create 16 virtual tape drives. In a larger environment (50-200 clients) I create 32-64. It takes a little longer to set them up, but afterwards you will reap the benefits. 4) After you have created the virtual tape library, drives, and tapes, define it to TSM the way you ordinarily would with a real tape library and drives. Simplify the setup by using the setting to automatically discover the serial and element numbers. 5) Direct the client backups directly to the virtual tapes, instead of going to disk storage pool. If you have enough virtual tape drives and spread your client schedules out into groups, you can drive the data straight through to virtual tape. This will save you hours of time in the schedule not having to migrate from disk to tape. There may be some older slower clients you could leave behind on disk storage pool if you have a lot of clients like that, it is up to you. 6) There is no particular advantage to collocating storage pools in a virtual tape environment. You can restore a client spread across two dozen virtual tapes (almost) just as fast as if it was two virtual tapes, because the mounts, dismounts, and seeks are so fast. By turning off collocation, you can get better overal utilization of the disk space in the CDL. 7) Doing backup storage pools from primary to copy pools will only require half as many real tape drives as it did before, so you can increase MAXPR if you need to to speed things up. 8) In a real tape environment, most people have to set aside time in the daily schedule to reclaim both primary storage pool and copy storage pool tapes. They need to have a script or admin schedule to start and stop reclamation, to keep it out of the way of other processes that would require tapes. If your primary storage pool is on a CDL, set the reclamation threshold at 50% (or whatever you prefer) and leave it there. As long as you have enough virtual tape drives so that you aren't running out of virtual drives, reclamation will simply grab a couple virtual tape drives, mount the tapes, and go about reclaiming tapes when it needs to. The whole process will happen "in the background" and you won't even notice it. This can free up hours so you can reclaim more copy storage pool tapes, or whatever. Those are my thoughts. Feel free to ask me other questions if you need to. Also, don't hesitate to ask for help from the EMC BURA (BackUp, Recovery, and Archive) Practice at EMC. That is what they are there for. Best Regards, John D. Schneider Sr. System Administrator - Storage Sisters of Mercy Health System 3637 South Geyer Road St. Louis, MO. 63127 Email: [EMAIL PROTECTED] Office: 314-364-3150, Cell: 314-486-2359 -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Joni Moyer Sent: Tuesday, June 05, 2007 8:21 AM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] How to Incorporate a CDL into TSM environment? Hi Everyone, We have recently purchased a CDL and will be implementing it with our TSM environment shortly. We have 120 TB for our production system and 60 TB for our test system. I was just wondering if anyone has already installed and set up a CDL library in an already existing library? (Which I'm sure many have.) And if so, what steps did you go through to tie the CDL into TSM? And what documentation, if any, was helpful? Thanks in advance! ******************************** Joni Moyer Highmark Storage Systems, Storage Mngt Analyst III Phone Number: (717)302-9966 Fax: (717) 302-9826 [EMAIL PROTECTED] ********************************