Optional) Configuring A Third-Party Multipathing Policy For Host - Huawei OceanStor 2000 V3 Series Features Manual

OceanStor V3 Series
HyperMetro Feature Guide for Block
Step 4 Optional: (for Windows) Set the timeout period for an iSCSI initiator.
l If you are using a Hyper-V cluster for HyperMetro's upper-layer environment and employing a 10GE
l If the upper-layer environment of HyperMetro is not a Hyper-V cluster or does not use a 10GE SAN, skip
Perform the following steps on each Hyper-V host.
1.
2.
3.
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4.7.2 (Optional) Configuring a Third-party Multipathing Policy
for Host
This section introduces the operation procedure for configuring third-party multipathing
software.
Context
If the customer needs to use non-Huawei multipathing software (such as HP-UNIX NMP and
PV-Links, OpenVMS DM-MultiPath, and Oracle DM-MultiPath) on the application server,
Issue 05 (2018-01-30)
UltraPath Configuration
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Basic Configuration
Working Mode : load balancing within controller
LoadBanlance Mode : min-queue-depth
Loadbanlance io threshold : 1
LUN Trespass : on
Advanced Configuration
Io Retry Times : 10
Io Retry Delay : 0
Faulty path check interval : 10
Idle path check interval : 60
Failback Delay Time : 600
Max io retry timeout : 1800
Path reliability configuration
Timeout degraded statistical time : 600
Timeout degraded threshold : 1
Timeout degraded path recovery time : 1800
Intermittent IO error degraded statistical time : 300
Min. I/Os for intermittent IO error degraded statistical : 5000
Intermittent IO error derraded threshold : 20
Intermittent IO error derraded path recovery time : 1800
Intermittent fault degraded statistical time : 1800
Intermittent fault degraded threshold : 3
Intermittent fault degraded path recovery time : 3600
High latency degraded statistical time : 300
High latency degraded threshold : 1000
High latency degraded path recovery time : 3600
APDtoPDL configuration
APD to PDL Mode : on
APD to PDL Timeout : 10
NOTE
SAN, you must set the timeout period to 5 seconds for the iSCSI initiator of every host in the cluster.
this step.
NOTE
Run the iscsiConfig set timeout 5 command.
Run the iscsiConfig set linkdowntime 5 command.
Restart the host.
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