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1. RAID5 Vs Mirroring (score: 1): Author: Anuvinder Chauhan <Anuvinder.CHAUHAN AT ST DOT COM>; Date: Fri, 22 Jun 2001 17:27:06 +0530; Hi All, Currently we are running AIX over RS/6000 with TSM on top of it.This is further integrated to the IBM 3494 library. In the current scenario we have mirroring implemented only for the TSM data; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2001-06/msg00787.html (10,948 bytes)
2. Re: RAID5 Vs Mirroring (score: 1): Author: Jeff Bach <jdbach AT WAL-MART DOT COM>; Date: Fri, 22 Jun 2001 08:15:03 -0500; Do you mirror your tapes? If not, that is where I would start to increase my redundancy. The DISK storage pools ussually contain data for a short period of time. The tapes for a long period of time.; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2001-06/msg00792.html (12,189 bytes)
3. Re: RAID5 Vs Mirroring (score: 1): Author: Anuvinder Chauhan <Anuvinder.CHAUHAN AT ST DOT COM>; Date: Fri, 22 Jun 2001 19:01:43 +0530; We do mirror our tape pools.For each pool that has been defined we do have a copy tape pool.Actually i wanted to nullify the disk usage which would have come down drastically in case of RAID 5.Curren; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2001-06/msg00795.html (12,815 bytes)
4. Re: RAID5 Vs Mirroring (score: 1): Author: "Prather, Wanda" <Wanda.Prather AT JHUAPL DOT EDU>; Date: Fri, 22 Jun 2001 10:09:39 -0400; I think either is fine, depending on your needs and throughput requirements. WHen we started out I had the DB on RAID5, and just mirrored the logs, to save space. As we grew, performance on the DB be; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2001-06/msg00800.html (11,163 bytes)
5. Re: RAID5 Vs Mirroring (score: 1): Author: Miles Purdy <PURDYM AT FIPD.GC DOT CA>; Date: Fri, 22 Jun 2001 09:26:14 -0500; Hi, Do not use RAID 5 if performance is at all a concern. I use RAID 1 (mirroring), for my database and log. I use RAID 0 (striping), for my disk pools. Jeff hit the nail on the head, configure your; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2001-06/msg00802.html (11,845 bytes)
6. Re: RAID5 Vs Mirroring (score: 1): Author: Miles Purdy <PURDYM AT FIPD.GC DOT CA>; Date: Fri, 22 Jun 2001 09:31:59 -0500; I don't think TSM would work that well in a large implementation with out disks... Convince your boss that you need the hard drives. Are you using SSA? Do you have the SSA Fast Write Cache? In my ex; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2001-06/msg00805.html (13,625 bytes)

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