HP StorageWorks Modular Smart Array 1000 Installation and Reference Guide for - Page 23

hpdsm set device policy, hpdsm set device path

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hpdsm paths device=1 Path# Controller Port# 1 P56350FX3Q5006-1 2 P56350GX3RI0F6-1 State Available Available HBA Slot# 4 4 RTP 00010001 00020002 P.B.T.L 3.1.3.1 4.1.3.1 hpdsm set device policy Syntax: hpdsm set device=x policy=policy Syntax: hpdsm set device=all policy=policy The hpdsm set device policy command sets the load balancing policy for device x or all devices, depending on the input parameter specified, to one of the following: • No_Load_Balance (NLB) • Round_Robin (RR) • Shortest_Queue_Requests (SQR) • Shortest_Queue_Bytes (SQB) • Shortest_Queue_ServiceTime (SQST) The example below demonstrates the information displayed by the hpdsm set device policy command. NOTE: You can not change the load balance policy in an MSCS/Failover Cluster environment. Example: hpdsm set device=1 policy=sqst Device Name : HP MSA_VOLUME Device Serial No. : 600508B300912160AF87D3596705001B Change Load Balance policy (y/n)? y Load Balance policy changed. Verify by issuing "hpdsm devices" command. Example: hpdsm set device=all policy=rr Successful for all the devices. Verify by issuing "hpdsm devices" command. hpdsm set device path Syntax: hpdsm set device=x path=y The hpdsm set device path command changes the preferred path for device x, as shown in the example below. NOTE: Use the hpdsm paths device command to view the available paths for the device. HP MPIO Full Featured DSM for MSA1000/1500 (Active-Active) Disk Arrays 3.00.00 23

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hpdsm paths device=1
Path#
Controller Port#
State
HBA Slot#
RTP
P.B.T.L
1
P56350FX3Q5006-1
Available
4
00010001
3.1.3.1
2
P56350GX3RI0F6-1
Available
4
00020002
4.1.3.1
hpdsm set device policy
Syntax:
hpdsm set device=x policy=policy
Syntax:
hpdsm set device=all policy=policy
The
hpdsm set device policy
command sets the load balancing policy for device
x
or
all
devices, depending on the input parameter speci
fi
ed, to one of the following:
•
No_Load_Balance (NLB)
•
Round_Robin (RR)
•
Shortest_Queue_Requests (SQR)
•
Shortest_Queue_Bytes (SQB)
•
Shortest_Queue_ServiceTime (SQST)
The example below demonstrates the information displayed by the
hpdsm set device policy
command.
NOTE:
You can not change the load balance policy in an MSCS/Failover Cluster environment.
Example:
hpdsm set device=1 policy=sqst
Device Name
: HP MSA_VOLUME
Device Serial No.
: 600508B300912160AF87D3596705001B
Change Load Balance policy (y/n)?
y
Load Balance policy changed.
Verify by issuing "hpdsm devices" command.
Example:
hpdsm set device=all policy=rr
Successful for all the devices.
Verify by issuing "hpdsm devices" command.
hpdsm set device path
Syntax:
hpdsm set device=x path=y
The
hpdsm set device path
command changes the preferred path for device
x
, as shown in the
example below.
NOTE:
Use the
hpdsm paths device
command to view the available paths for the device.
HP MPIO Full Featured DSM for MSA1000/1500 (Active-Active) Disk Arrays 3.00.00
23