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тАО01-02-2005 11:50 PM
тАО01-02-2005 11:50 PM
IO load balance tolerance
I hope all are well. Complements of the season to one and all.
I'm faced with the following problematic question and was hoping for some input regarding this. The question is as follow:
In Tru64, load balancing/failover between fibre interfaces is on by default. Is it possible to tune this layer to adjust tolerance? How does one tune I/O timeouts at device driver level or within the LSM volume manager, and is this possible at all?
Any help regarding this, even if just pointing to documentation or something regarding this, would truly be appreciated.
I thank you in advance.
Kind regards
Paul
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тАО01-03-2005 09:14 AM
тАО01-03-2005 09:14 AM
Re: IO load balance tolerance
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тАО01-03-2005 06:36 PM
тАО01-03-2005 06:36 PM
Re: IO load balance tolerance
Would you mind describing the problem you are trying to solve?
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тАО01-04-2005 06:53 PM
тАО01-04-2005 06:53 PM
Re: IO load balance tolerance
We are connected to an EMC SAN where the storage allocated to the host is mat behind multiple storage processors, however they are not in an active active configuration. And failover between the two in the event of a storage processor failure results in link lost to the host and we have found where large lun arrays are failed over we get data corruption as the time frames are too lengthy and the host reports uncorrectable read/write IOs. We were thinking of, at host level, trying to manipulate the time outs to cater for the fail over delays.
Paul
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тАО01-04-2005 08:00 PM
тАО01-04-2005 08:00 PM
Re: IO load balance tolerance
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тАО01-04-2005 08:28 PM
тАО01-04-2005 08:28 PM
Re: IO load balance tolerance
Will do. Thank you
Paul