- Backupsets do not have the ability to have copies in TSM. Count yourself how many times a tape (of the backupset) can become bad during those 7 years.If you realize it on the 4-th or 6-th year ...? - Will you stay at current tape drive technology forever? What should you do after 7 years - today's backupsets are let say on DLT, during 2003-2004 you will use LTOv2 and later will be say on LTOv4?!? You will have to keep *operative* and working for restores all technologies used during last 7 years. - What do you mean as "huge"? Alex already did some math. The only thing he did not added is: there are many people successfully driving 80, 100, even 180 GB TSM DB (with appropriate hardware of course). And it works every day! - Backupset lives alone on a cartridge and nothing else can use it. If your backupset is for example 30 GB and you still use DLT 7000 wasted space will be "only" 14%. If DLT8000 is used it will grow to 25%, for 100 GB LTO and 110 GB SDLT - 70% and 73% respectively. This will mean unused *expensive* cartridges. For 7 years, 2 cartridges (minimum) per day, ... do the math yourself. (TSM rulez! sorry, cannot resist to ask bean counters how it will cost using *any* other product :-)
I can only add that if *each* copy is so important to force you to make them twice a day, you have to be careful. Zlatko Krastev IT Consultant Alex Paschal <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> 02.12.2002 18:18 Please respond to "ADSM: Dist Stor Manager" To: [EMAIL PROTECTED] cc: Subject: Re: Permanent retention Dorothy, 2 archives/day * 365.25 * 7 * 800b (600b+200b for copy) = about 4.1 MB/object at the end of 7 years. How many objects will you archive each day? When you're fully populated at 7 years, your database would have grown by only 1GB due to these archives if you're archiving as many as 240 objects twice a day. I'd say your archives, unless you're doing thousands of objects twice a day, probably shouldn't grow your database as much as you might fear. Alex Paschal Storage Administrator Freightliner, LLC (503) 745-6850 phone/vmail -----Original Message----- From: Dorothy LIM Kay Choo [mailto:[EMAIL PROTECTED]] Sent: Monday, December 02, 2002 1:43 AM To: [EMAIL PROTECTED] Subject: Re: Permanent retention Hi Zlatko, Thks for the suggestion. I understand that the archive function will result in huge database. I believe there is a protential problem if the database grows too big. Because of the above, I tried to used backupset which was recommended to be as a better option. Regards, Dorothy Lim Systems & Network Division, United Overseas Bank Limited mailing address: 396 Alexandra Road, #04-00, BP Tower Singapore 119954 e-mail: [EMAIL PROTECTED] // tel: 371 5813 // fax: 270 3944 Privileged/Confidential information may be contained in this communication (which includes any attachment(s)). If you are not an intended recipient, you must not use, copy, disclose, distribute or retain this communication or any part of it. Instead, please delete all copies of this communication from your computer system and notify the sender immediately by reply email. Thank you. -----Original Message----- From: Zlatko Krastev/ACIT [mailto:[EMAIL PROTECTED]] Sent: Monday, December 02, 2002 4:01 PM To: [EMAIL PROTECTED] Subject: Re: Permanent retention Look at the "Archive" function of TSM client. It can be invoked from CLI by using "dsmc archive <objects> <options>" or from GUI/Web pressing button "Archive" instead of "Backup". With appropriate settings in archive copygroup (which is different from backup copygroup) this is very easy to achieve. Look for "def copy t=a" server command. Zlatko Krastev IT Consultant Dorothy LIM Kay Choo <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> 02.12.2002 08:47 Please respond to "ADSM: Dist Stor Manager" To: [EMAIL PROTECTED] cc: Subject: Permanent retention Hi, I would like to seek advise on how to use TSM to keep my information permanent. Before the application, execute the end-of-day processing, a set of database will be dump. After the end-of-day processing, there is another dump to database which will overwrite the previous. I need to keep both set for a retention of 7 years. Any advise ? Regards, Dorothy Lim Systems & Network Division, United Overseas Bank Limited mailing address: 396 Alexandra Road, #04-00, BP Tower Singapore 119954 e-mail: [EMAIL PROTECTED] // tel: 371 5813 // fax: 270 3944 Privileged/Confidential information may be contained in this communication (which includes any attachment(s)). If you are not an intended recipient, you must not use, copy, disclose, distribute or retain this communication or any part of it. Instead, please delete all copies of this communication from your computer system and notify the sender immediately by reply email. Thank you.