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Zero controller fault reduction in Solaris+Dorado V6+Veritas Infoscale DMP multipathing

Latest reply: Oct 12, 2021 04:27:42 144 1 2 0 0

If a Dorado V6 controller is faulty, the zero-down time of the storage is less than 2s. In default host configuration, the zero-down time of the host is mainly consumed by the HBA timeout time.


Therefore, the fp.conf fcp.conf file is still modified, but the parameter setting is shorter than 10s.


For Solaris 11


1. Check whether the fcp.conf file exists.

2.

cp /kernel/drv/fcp.conf /etc/driver/drv/fcp.conf

3. Open the file and check whether there are parameters. If there are no parameters, add them.

fcp_offline_delay = 10; The default value is 20.

name="fcp" parent="pseudo" instance=0;

4. reboot

5.Querying echo "fcp_offline_delay/U"|mdb -k

The same method is used.

cp /kernel/drv/fp.conf /etc/driver/drv/fp.conf

fp_offline_ticker = 10; (The default value is 90.)

echo "fp_offline_ticker/U"|mdb -k


Note: Do not lose semicolons; otherwise, the parameter does not work.


If this parameter is set to 10s, the zero-down time is still about 10s. Therefore, you can set this parameter to a smaller value. For example, if this parameter is set to 0, the zero-down time is less than 2s.


Helpful post. Thanks.
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