I wish I could say more, but I'm waiting for DD890 to land to our DC where I plan to test the same using NW. I plan to test DFA (client direct) too which I believe is not there in your case (I believe you use TSM, correct?).
Ah I see... I will get close to that using DSP and DFA functionality (NW will pick only metadata and be backup orchestrator for all backup operations). I'm not 100% sure, but I believe that with custom library you got you get to see DSP functionality which just pushes part of computing to host side (so in theory you should see a bit more CPU usage on the host), but there is no local cache to have it quick as if it would be client side de-dupe. This is why I don't believe you should see that much of improvements. For a test, have you tried the same without custom library? (using NFS device as disk target and "native" RMAN to disk)
Nice... I have variety of Oracle 10 and 11 is all sizes and shapes too. I will first test VTL functionality (this is because we currenly use VTL and I wish to see how it compares). Then I will switch to DD Boost devices and can't wait to test it.
dynamox
9 Legend
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October 9th, 2012 11:00
this is RMAN going directly to DD, no 3rd party backup tools involved.
ble1
4 Operator
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14.4K Posts
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October 9th, 2012 11:00
I wish I could say more, but I'm waiting for DD890 to land to our DC where I plan to test the same using NW. I plan to test DFA (client direct) too which I believe is not there in your case (I believe you use TSM, correct?).
ble1
4 Operator
•
14.4K Posts
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October 9th, 2012 13:00
Ah I see... I will get close to that using DSP and DFA functionality (NW will pick only metadata and be backup orchestrator for all backup operations). I'm not 100% sure, but I believe that with custom library you got you get to see DSP functionality which just pushes part of computing to host side (so in theory you should see a bit more CPU usage on the host), but there is no local cache to have it quick as if it would be client side de-dupe. This is why I don't believe you should see that much of improvements. For a test, have you tried the same without custom library? (using NFS device as disk target and "native" RMAN to disk)
dynamox
9 Legend
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20.4K Posts
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October 18th, 2012 10:00
a little bit more testing:
database: Oracle 10.2.5
application: PeopleSoft
db size: ~800G
channels: 6
RMAN full backup to NFS mounted DD890 - ~4 hours
RMAN full backup to DDBoost on DD890 ~ 26 minutes
....amazing, DBA could not believe it so he did a couple db recoveries which worked perfectly (took ~4 hours to restore)
ble1
4 Operator
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14.4K Posts
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October 18th, 2012 11:00
Nice... I have variety of Oracle 10 and 11 is all sizes and shapes too. I will first test VTL functionality (this is because we currenly use VTL and I wish to see how it compares). Then I will switch to DD Boost devices and can't wait to test it.