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Operating Systems AIX Flag issue
# 1  
Old 03-27-2012
Flag issue

Hi all,

We dont have access to aix source code and i have a doubt.

The flag SC_NO_RESERVE, is it got to do anything with the failover?

If the flag is set the paths are going to failed state. If flag is not set everything comes up fine after failover.

Thanks in advance for helping

-Nakul
# 2  
Old 03-28-2012
Where are you seeing the "SC_NO_RESERVE"? The VIO servers need to set their disks' attributes for "reserve_policy" to "no_reserve" so that both VIO servers can see the disk at the same time. Without this setting, one VIO server will put a reserve on the disk and the other VIO server can no longer access it.
# 3  
Old 03-29-2012
@kah00na :
We are setting it in our driver(for cluster support purpose). I tested with "lsattr -El <all hdisks> " as reserve_lock=no and reserve_policy=no_reserve on vios and LPARs too. But not working Smilie
Also, the issue exists on stand alone machine too..

Last edited by gnakul; 04-03-2012 at 10:22 AM..

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