Disk time and highest active times


i could not understand what is the different between this 2 terms.

I have an ERP run for years and recently, users starting to complaints the application having intermittently slowness issue.

thus, i use maxfocux to monitor and i find out that the disk time will hit more than 50% and and read and write queue will hit about value of 2.

i try to study could it be the hard disk performance issue? when i check on the resource monitor, there are highest active times, i cant understand the highest active times.

The current  HDD configuration is RAID 5 and each disk with 10k RPM.

Please advise

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andyalderSaggar maker's framemakerCommented:
It could be a problem with the disk subsystem, I would run manufacturer diagnostics or get log report out of the RAID controller, a bit dificult to tell you how to do that as do not know what controller/server you have.
patcheahAuthor Commented:
Hi Andy,

We are using a HP gen8 server. So, you mean that i can pull out the report from RAID controller to see the disk log whether the disk have any issue ?

andyalderSaggar maker's framemakerCommented:
It's certainly worth getting the ADU report (from smart storage administrator program) and attaching it and we'll look through it for disk timeouts.

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patcheahAuthor Commented:
Hi expert,

ADU reports looks fine when submitted to HP, and we believe is the software issue.

Thanks for all the comments.
andyalderSaggar maker's framemakerCommented:
I wouldn't trust HP support to read an ADU report properly, they have a program that reads it for them but it doesn't take into account bad blocks because the disk manufacturer doesn't count bad blocks as failures.
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