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red1918sox
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September 24th, 2012 08:00
Enginuity 5875 -> 5876 Upgrade
Has anyone experienced the behavior where the backend ( VMAX 20K) gets very busy for up to 24+ hours after an upgrade to 5876. We recently upgraded an array that averaged 10% util and spiked to 60-70% for 24+ hours.
red1918sox
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Posted September 24th, 2012 11:00
YEs,.,,I am talking DA util. We have many more arrays to upgrade and I cant afford that spike in the backend . My customers were bitten with the 5875. 249 issue where the data all nosed dive into SATA.
red1918sox
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Posted September 24th, 2012 13:00
Are u using FASt-VP?
red1918sox
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Posted September 25th, 2012 05:00
We had 24+ hours of higher than normal activity. We are tracking it down to see what caused it. This spike will impact my customers on other arrays. EMC has lost alot of credability with the 249 upgrade.
red1918sox
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Posted September 25th, 2012 06:00
You dont run into the issue if they execute the manual step.
Quincy561
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Posted September 24th, 2012 14:00
red1918sox2
Don't worry about the DA utilization. If it was 10% before, it is still really ~10% now. The way FAST VP background tasks are scheduled is planned to change with the next release.