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T430 + PERC H730 - missing Adaptive Read Ahead?
Windows 2012 R2 fully patched
PERC H730 1GB + Battery
All Dell drivers/firmware installed and up to date
OMSA 8.3
Go to OMSA, Storage, PERC, Virtual Disks, Change Policy, Read Policy - only options are 'Read ahead' and 'No read ahead'
I'm missing Adaptive Read Ahead. What am I missing so I can select that in OMSA?
DELL-Daniel My
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June 4th, 2016 15:00
Hello
Adaptive read-ahead is not a feature of the PERC H730:
http://www.dell.com/support/home/us/en/19/product-support/product/poweredge-rc-h730/manuals
Adaptive read-ahead was a feature designed to reduce resource usage of using read-ahead all of the time. I suspect that it has been dropped as a feature since resources are much higher on modern controllers.
Thanks
mark.valpreda
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June 4th, 2016 18:00
Going to have to disagree with you there. I have a PowerEdge T630 at home with an H730 and I have Adaptive Read Ahead as an option.See the attached screenshot.
DELL-Daniel My
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June 4th, 2016 19:00
Adaptive read ahead is not a feature of the H730. If it shows available on one of your H730s then it is likely a reporting issue due to the OMSA version, FW version, or because the array was migrated from another controller.
I double checked my documentation on the H730 and reviewed the FW release notes. I show nowhere that adaptive read ahead is a feature of the H730; However I found multiple documents where the feature was obviously omitted in comparison to previous controllers.
Thanks
mark.valpreda
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June 4th, 2016 19:00
Very odd. Have 25.3 on one, and 25.4 on the new one. Both have the same driver and OMSA 8.3.