Re: show exadata current i/o latency capping

From: Ls Cheng <exriscer_at_gmail.com>
Date: Thu, 31 May 2018 21:07:21 +0200
Message-ID: <CAJ2-Qb9XLKOpsf5Lg264EVPr7i_OH+DUcZD9iVL8XK3qur4=JA_at_mail.gmail.com>



Hi Fairlie

I looked in the doc

https://docs.oracle.com/cd/E80920_01/SAGUG/exadata-storage-server-cellcli.htm

and it says default value is 1000 seconds?!

*The default value for iotimeoutthreshold is 1000s. The command takes a value, such as 5, and a unit. The valid unit is s, for seconds.*

Thanks

On Thu, May 31, 2018 at 12:16 PM, Fairlie Rego <fairlie.rego_at_gmail.com> wrote:

> Hi Ls,
>
> From memory this was 1 second for flash (reads and writes) and 5 seconds
> for HDD (only writes) in 12.1.2.1.x
>
> It is configurable using alter cell IOtimeoutthreshold=10s
> All IOs taking longer than 10 seconds will be cancelled if possible
>
> I am currently not online and hence cannot check the value by doing some
> dumps
>
> Ta
> Fairlie
>
> On Thu, May 31, 2018 at 7:01 PM, Ls Cheng <exriscer_at_gmail.com> wrote:
>
>> Hi
>>
>> Does anyone know how to get the current value for Exadata Cells I/O
>> latency capping?
>>
>> Thanks
>>
>>
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>
> --
> Fairlie Rego
> Executive Database Architect
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>
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Received on Thu May 31 2018 - 21:07:21 CEST

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