Re: Mulitthreading
Hi, the solution doesn't sound like a TSM solution. One solution is to put half of each disk storage pool on each array. You will probably have to drop and recreate each storage pool. Although, you might be better off, unless you really need all that space, to drop both RAID 5 arrays and make one large RAID 0 array. RAID 5 is terrible for writing. Having said that I would take into consideration how many disks, how many adapters and now much space you need. Have you checked to see if you are saturating the array? (use iostat on Unix). Reply with more information if you would like some more help. Miles --- Miles Purdy System Manager Farm Income Programs Directorate Winnipeg, MB, CA [EMAIL PROTECTED] ph: (204) 984-1602 fax: (204) 983-7557 --- >>> [EMAIL PROTECTED] 07-May-01 4:38:15 PM >>> I have 2 raid-5 sets with 1 volume of a storage pool sitting on each raid set. I am noticing that when I backup that I don't write to both volumes all the time in parellel. My network through put isn't limiting me. Is there any way to force tsm to write to both volumes in a storage pool at the same time. Effectively doubling my through put. Thanks ***EMAIL DISCLAIMER** This e-mail and any files transmitted with it may be confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient or the individual responsible for delivering the e-mail to the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is strictly prohibited. If you have received this e-mail in error, please delete it and notify the sender or contact Health Information Management (312) 996-3941.
Re: Mulitthreading
> I have 2 raid-5 sets with 1 volume of a storage pool sitting on each raid > set. I am noticing that when I backup that I don't write to both volumes > all the time in parellel. My network through put isn't limiting me. Is > there any way to force tsm to write to both volumes in a storage pool at the > same time. Effectively doubling my through put. >From my observations, I believe that TSM tries to place each user file on a single disk volume. Thus, it you have only one backup process running, TSM will write to only one disk. If you have two backups running, then there is a good probability that TSM will write the first user's file to disk 1, and the the second user's file to disk2. TSM also appears to place equal amounts of data on each disk volume. Thus, if you have only one backup process running and the files are all about the same size, you will observe that the first file will go to disk 1, the second file to disk 2, the third file to disk 1, and so on. Mike Hull [EMAIL PROTECTED] Systems and Automation Analyst 613-562-5800 x 4587 Computer Centre/ 136 Jean-Jacques Lussier Room 543 University of Ottawa / Ottawa, Ontario / Canada K1N 6N5
Mulitthreading
I have 2 raid-5 sets with 1 volume of a storage pool sitting on each raid set. I am noticing that when I backup that I don't write to both volumes all the time in parellel. My network through put isn't limiting me. Is there any way to force tsm to write to both volumes in a storage pool at the same time. Effectively doubling my through put. Thanks ***EMAIL DISCLAIMER** This e-mail and any files transmitted with it may be confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient or the individual responsible for delivering the e-mail to the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is strictly prohibited. If you have received this e-mail in error, please delete it and notify the sender or contact Health Information Management (312) 996-3941.
