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ONTAP Discussions

ontap 9.5 - different Algorithms for Flash Cache and READS from SSD ? - did anyone notice a change

xiawiz

OK I noticed a change in the way NABOX , Graphana , Harvest displays metrics related to Flash Cache and READS from SSD after CDOT upgrade from 9.4X to 9.5X - 3 different clusters / 3 diff upgrate dates / all display same characteristics - so is it just the way NABOX charts these metrics now or was the Algorithms for Flash Cache and READS from SSD modified in 9.5X ? thanks.

 

NASI

successful 9.4P5 3/2/2019 3/2/2019 nasi-04 9.4P3 9.4P5   00:19:39 01:59:17
successful 9.5P1 4/7/2019 4/7/2019 nasi-04 9.4P5 9.5P1   09:20:48 10:59:42

nasi1.JPG

 

NANW

successful 9.4P5 2/23/2019 2/23/2019 nanw-04 9.4P3 9.4P5   04:03:40 05:46:12
successful 9.5P1 3/16/2019 3/16/2019 nanw-04 9.4P5 9.5P1   01:16:28 03:35:24

nanw1.JPG

 

NAFH

successful 9.4P5 3/2/2019 3/2/2019 nafh-04 9.4P3 9.4P5        00:32:41 02:14:18
successful 9.5P1 4/14/2019 4/14/2019 nafh-04 9.4P5 9.5P1   19:43:05 21:31:46

nafh1.JPG

 

1 ACCEPTED SOLUTION

xiawiz

TMAC - thanks for your help, thru this tread I was able to update the SDK componenet  and the Harvest Component - so that was a plus 😉    - as far as the graphs related to "  Flash Cache and READS from SSD" - it looks like the "scale" changed after the upgrade I mentioned - also I remember for the last 4 or 5 ONTAP versions the oncommand system manager displayed "flash cache" info for the AFF controllers when it should not have( AFF systems do not have "Flash Cache" cards ).  So when all is said and done after the ONTAP upgrade to 9.5X  the oncommand system manager DOES NOT display  "flash cache" info for the AFF controllers and that is now correctly reflected in the NABOX charts / graphs.

 

pic before and after ONTAP upgrade ( we see stats from all 4 nodes - 2 AFF and 2 HYBRID )

nabox4.JPG

 

pic after ONTAP upgrade ( we see stats from 2 nodes - only the 2 HYBRID )

nabox5.JPG

 

 

View solution in original post

5 REPLIES 5

TMAC_CTG

Did you happen to update the SDK to 9.5 for NABOX?

xiawiz

Thanks TMAC - here are our versions on the NABOX side of the house

( BTW - we are using the NABOX ISO image )

     

NAbox 2.5 (2018-12-16).
NMSDK 9.4.
Harvest 1.4.

TMAC_CTG

yeah... update the SDK & the harvest versions. Both behind!

 

Up to you if you want to update the NABOX image itself!

 

xiawiz

OK Will do, thanks, will report back later.....

xiawiz

TMAC - thanks for your help, thru this tread I was able to update the SDK componenet  and the Harvest Component - so that was a plus 😉    - as far as the graphs related to "  Flash Cache and READS from SSD" - it looks like the "scale" changed after the upgrade I mentioned - also I remember for the last 4 or 5 ONTAP versions the oncommand system manager displayed "flash cache" info for the AFF controllers when it should not have( AFF systems do not have "Flash Cache" cards ).  So when all is said and done after the ONTAP upgrade to 9.5X  the oncommand system manager DOES NOT display  "flash cache" info for the AFF controllers and that is now correctly reflected in the NABOX charts / graphs.

 

pic before and after ONTAP upgrade ( we see stats from all 4 nodes - 2 AFF and 2 HYBRID )

nabox4.JPG

 

pic after ONTAP upgrade ( we see stats from 2 nodes - only the 2 HYBRID )

nabox5.JPG

 

 

View solution in original post

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