powerpath or extra hbas

Question

without the powerpath software I see I have 8 paths 4 standby and 4 active but 1 active only has (I/O with powerpath will that give me 4 paths active? can I get more active paths by adding in extra hba?

tdubb123 · Answer

mru right now. esxi 5.0 thanks. but I am upgrading to cx4-960 this weekend

dynamox · Answer

what failover settings do you have set for ESX ..and what version of ESX ?

dynamox · Answer

if you have 4 paths to SPA and 4 paths to SPB, change policy to Round Robin for your LUNs and you will see 4 active and 4 passive per LUN. PowerPath/VE provides more intelligent load balancing /failover.

tdubb123 · Answer

I heard round robin is not supported on the cx3?

dynamox · Answer

in Navisphere, right click on the system > properties > software tab ...i think it says operating system version or flare version..can't remember

also take a look at this post

https://community.emc.com/thread/133693

tdubb123 · Answer

can you help me find this ?

dynamox · Answer

what flare verson on CX3

tdubb123 · Answer

I dont have a software tab. how do I find this with naviseccli?

tdubb123 · Answer

ok i found it

Name of the software package: FLARE-Operating-Environment

Revision of the software package: 03.26.080.5.032

Commit Required: NO

Revert Possible: NO

Active State: YES

Is installation completed: YES

Is this System Software: NO

itzikr · Answer

Hi There,

if you are upgrading to CX4 and will have PowerPath/VE installed,then you want to enable failovermode=4 which will enable ALUA AND is a pre-requisite for VAAI.

if PowerPath/VE isnt installed on a CX4, then you have the options:

1. RR = loadbalancing without a path auto restore

2. Fixed = no loadbalancing but auto path restore

PP/VE offer both.

Itzik

VMware

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