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Total 6 documents matching your query.

1. [ADSM-L] TSM only reads from COPY1 during DB backup (score: 1): Author: Orville Lantto <orville.lantto AT GLASSHOUSE DOT COM>; Date: Tue, 24 Apr 2007 15:23:04 -0400; Has anyone else observed that TSM only reads from COPY1 of a db volume mirror pair during DB backup? Orville L. Lantto Glasshouse Technologies, Inc.; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2007-04/msg00407.html (11,319 bytes)
2. Re: [ADSM-L] TSM only reads from COPY1 during DB backup (score: 1): Author: Richard Sims <rbs AT BU DOT EDU>; Date: Wed, 25 Apr 2007 10:22:49 -0400; Has anyone else observed that TSM only reads from COPY1 of a db volume mirror pair during DB backup? Why do you believe it should do otherwise? As exposited in the Admin Guide manual, mirroring is f; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2007-04/msg00416.html (11,867 bytes)
3. Re: [ADSM-L] TSM only reads from COPY1 during DB backup (score: 1): Author: Orville Lantto <orville.lantto AT GLASSHOUSE DOT COM>; Date: Wed, 25 Apr 2007 10:55:16 -0400; Reads should be safe from mirrored volumes and are commonly done in operating systems to load balance. Not taking advantage of the available IO resource is wasteful and puts an unnecessarily unbalanc; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2007-04/msg00417.html (12,396 bytes)
4. Re: [ADSM-L] TSM only reads from COPY1 during DB backup (score: 1): Author: Richard Sims <rbs AT BU DOT EDU>; Date: Wed, 25 Apr 2007 11:49:10 -0400; Reads should be safe from mirrored volumes and are commonly done in operating systems to load balance. Not taking advantage of the available IO resource is wasteful and puts an unnecessarily unbalan; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2007-04/msg00419.html (12,604 bytes)
5. Re: [ADSM-L] TSM only reads from COPY1 during DB backup (score: 1): Author: Orville Lantto <orville.lantto AT GLASSHOUSE DOT COM>; Date: Wed, 25 Apr 2007 15:22:04 -0400; Performance is the issue. As tapes get faster and faster, trying to get a db backup without "shoe-shining" the tape drive gets harder. Using storage sub-system mirroring is an option, but not the rec; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2007-04/msg00427.html (13,427 bytes)
6. Re: [ADSM-L] TSM only reads from COPY1 during DB backup (score: 1): Author: Paul van Dongen <Paul AT VANGUARD-IT.COM DOT BR>; Date: Wed, 25 Apr 2007 16:55:13 -0300; If it was't a dream, I remember reading something about this issue. It stated that this behaviour was "by design", because reading blocks from both copies of a mirrored volume cancelled all gains obt; /usr/local/webapp/mharc-adsm.org/html/ADSM-L/2007-04/msg00429.html (14,038 bytes)

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