Re: Oracle RMAN and TSM
>I have a dedicated disk pool for one specific Oracle RMAN backup >using 8 channels of a database at 300Gb. The backup takes about 2 >hours, but if I clean the cache on the pool, I will see no storage >space usage until the channel session has ended. So, at the end of >the backup, the storage pool usage will go from 0% to about 66%. My >storage pool size is 310Gb and I don't enable compression. Two >questions : > >1) What is TSM doing with each channel's data being sent ? Is it >buffering it somehow ? Most of the TSM queries relating to storage use are blind to files in transit. For example, when an offsite tape reclamation at our site copies an 8 gigabyte file, we see no change in the percentage utilization of the output tape until the entire file is moved, at which point the utilization suddenly goes up by about 40%. I suspect that you are seeing a similar phenomenon.
Re: Oracle RMAN and TSM
Richard, Your database has an allocated disk size of 300 GB, but RMAN takes only the backup of effective data in it. That explains why the disk consumption in the disk storage pool is less than 300 GB. Check once in an OEM the usage of the tablespaces. This should match better to the size in the disk storage pool. best regards, Kurt Van: ADSM: Dist Stor Manager namens Richard Mochnaczewski Verzonden: ma 1/30/2006 19:30 Aan: ADSM-L@VM.MARIST.EDU Onderwerp: [ADSM-L] Oracle RMAN and TSM Hi Everybody, I have a dedicated disk pool for one specific Oracle RMAN backup using 8 channels of a database at 300Gb. The backup takes about 2 hours, but if I clean the cache on the pool, I will see no storage space usage until the channel session has ended. So, at the end of the backup, the storage pool usage will go from 0% to about 66%. My storage pool size is 310Gb and I don't enable compression. Two questions : 1) What is TSM doing with each channel's data being sent ? Is it buffering it somehow ? 2) Because my database is abouot 300Gb, why does the storage pool show 66% usage ? Shoudldn't it be more ? Rich
Oracle RMAN and TSM
Hi Everybody, I have a dedicated disk pool for one specific Oracle RMAN backup using 8 channels of a database at 300Gb. The backup takes about 2 hours, but if I clean the cache on the pool, I will see no storage space usage until the channel session has ended. So, at the end of the backup, the storage pool usage will go from 0% to about 66%. My storage pool size is 310Gb and I don't enable compression. Two questions : 1) What is TSM doing with each channel's data being sent ? Is it buffering it somehow ? 2) Because my database is abouot 300Gb, why does the storage pool show 66% usage ? Shoudldn't it be more ? Rich
Setting up Oracle RMAN and TSM on Linux
Hello All, I am new to both the list and to Oracle/TSM solutions. All the basic components of the TSM Oracle and RMAN have been installed and appear to be OK, but I'm having problems locating the libobk.a file. The only thing I can find is libobk.so Is this the file I need? Anyone out there have any experience setting up on RedHat 2.1AS that could point me in the right direction? Thanks in advance. John M. Mota IT Manager "The MIS Department provides its customers with superior value by continually enhancing the productivity, accuracy, and reliability of information systems." 35 Kenney Drive Cranston, RI 02920 (401) 463-1800 Ext. 3314 Direct: 401-490-4970 Fax: 401-463-0159 mailto:[EMAIL PROTECTED] http://www.yushin.com Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and contains confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of this original message.
