Re: deterministic io throughput in multipath

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Have you looked into the delay_watch_checks and delay_wait_checks
configuration parameters?  The idea behind them is to minimize the use
of paths that are intermittently failing.

-Ben

On Mon, Dec 19, 2016 at 11:50:36AM +0000, Muneendra Kumar M wrote:
>    Customers using Linux host (mostly RHEL host) using a SAN network for
>    block storage, complain the Linux multipath stack is not resilient to
>    handle non-deterministic storage network behaviors. This has caused many
>    customer move away to non-linux based servers. The intent of the below
>    patch and the prevailing issues are given below. With the below design we
>    are seeing the Linux multipath stack becoming resilient to such network
>    issues. We hope by getting this patch accepted will help in more Linux
>    server adoption that use SAN network.
> 
>    I have already sent the design details to the community in a different
>    mail chain and the details are available in the below link.
> 
>    [1]https://www.redhat.com/archives/dm-devel/2016-December/msg00122.html.
> 
>    Can you please go through the design and send the comments to us.  
> 
>     
> 
>    Regards,
> 
>    Muneendra.
> 
>     
> 
>     
> 
> References
> 
>    Visible links
>    1. https://www.redhat.com/archives/dm-devel/2016-December/msg00122.html

> --
> dm-devel mailing list
> dm-devel@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/dm-devel

--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel




[Index of Archives]     [DM Crypt]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Packaging]     [Fedora SELinux]     [Yosemite Discussion]     [KDE Users]     [Fedora Docs]

  Powered by Linux