Re: HSM for NT
From: Dearman, Richard [mailto:[EMAIL PROTECTED]] Is anyone using the HSM for NT product that intergrates with TSM called OTG Diskextender? Or is there any other products that do HSM on NT that intergrate with TSM. The OTG product is not very good I am having alot of problems with it. From: Burton, Robert [mailto:[EMAIL PROTECTED]] What sort of problems are you experiencingwe tested the OTG product and we thought it looked pretty good. Dearman, Richard wrote: We use the software on our home directory servers. Our servers are hanging when we do a drive scan and we have to disable the otg service and reboot the machine to get it working again. Also, the software is generating alot of error messages trying to locate files. It seems to be a good product for servers that don't change alot. Our home directory servers continuely change when users login and diskextender doesn't seem to keep up with the changes very well. Stop and think about it. The purpose of HSM is to use tape, in place of disk, for files that are infrequently accessed. It is not meant for production boxes where files are frequently accessed. If files are being accessed/changed frequently, there is not an HSM client/server combo in the world that will be able to keep up with it. I don't understood the strong interest in HSM in some IT shops. It made sense when tape was cheap and harddisk real estate was pricey. Now that the situation is reversed, the file access delay and added overhead of HSM operations don't make much sense. -- Mark Stapleton ([EMAIL PROTECTED])
Re: Expiration question??
Expiration is not designed to just delete one file. It runs through entire database each time and deletes any and all files that meet criteria, for all storage pools and files. It will do this unless there is a time limit set on it or it terminates abnormally. Then reclamation will reclaim the space on tape pools for the files that were deleted. David Longo [EMAIL PROTECTED] 06/15/01 08:17PM Hello, I have one primary tape pool and (I won't get into it) and two copy tape pools. Example: I have three copies of a file. The file in the primary pool WILL be expired. when expiration processing gets to it. Does expiration remove AT THE SAME TIME the copies or does expiration have go through each pool? Assuming the primary pool has one million files for all the nodes and only my one file meets expiration does TSM have to search three million records to delete all three instances of my file?? Thanks, Mark Brown [EMAIL PROTECTED] MMS health-first.org made the following annotations on 06/16/01 09:29:34 -- This message is for the named person's use only. It may contain confidential, proprietary, or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it, and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. Health First reserves the right to monitor all e-mail communications through its networks. Any views or opinions expressed in this message are solely those of the individual sender, except (1) where the message states such views or opinions are on behalf of a particular entity; and (2) the sender is authorized by the entity to give such views or opinions. ==
How to keep one month worth of data offsite
How to keep one month worth of data offsite. The reson, lack of tape spaces and can not have so many version. The other reson, managment wants data to be kept in safe box for at least one month the we can recycle it... This is what I did Background: I have 10 filesystem to backup of 5 different systems. I have 2 libraries of 3750 attached separately, to the ADSM server. I'm using 1st one for daily live data of each system, I'm having only one copies of the files, the current version, and the retention of that is one year, or can be unlimit...so everyday it's getting refreshed, only one copy exists. I need to keep previous day's copy on the second library, I have two options as I thought of it, one is to do each day archive and keep it for max. One month and then start recycling, the other option, which I'm not sure, is whether I can use Copy Storage pool or not. I know the retention on Copy Pool is same as the primary pool... But if I do copy pool to some tapes and then move that tape offsite, on daily basis, can these files be retrieved any day within one year, or it stay only one day. Please help ... Thanks, Alyn Bush ADSM Leader Automobiles DBA __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/
