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932
April 10th, 2008 23:00
Powerpath licence / failover questions
Hello
I´m using powerpath 5.1 (unlicenced) with win2003 , msiscsi and a Emc-cx3-20.
I have 4 iscsi ports configured on my cx3-20 (2 /SP)
I have 2 dedicated iSCSI NIC in my win 2003
SPA0 and SPB0 is on 192.168.204. network and SPA1 and SPB1 on 192.168.205. network
NIC 0 is on 192.168.204.
NIC 1 is on 192.168.205.
when i connect the SAN i can see 4 paths in powerpath and the path to SPA0 and SPB0 is marked active and SPA1 and SPB1 is marked unlicensed.
Now to the failover question:
Can i have failover from SPA0 to SPA1 (diffrent NIC) or can failover only be med within one NIC.
If i disconnect NIC 0 i loose the path to SPA0 and SPB0 , i would like powerpath to resume the connection on SPA1 and SPB1 but it´s not
As i pointed out i´m running unlicensed version of powerpath if this is a limitation.
Networkconfig:
SPA0 192.168.204.2
SPB0 192.168.204.3
SPA0 192.168.205.2
SPA1 192.168.205.3
NIC 0 192.168.204.20
NIC 1 192.168.205.20
/bjorn
I´m using powerpath 5.1 (unlicenced) with win2003 , msiscsi and a Emc-cx3-20.
I have 4 iscsi ports configured on my cx3-20 (2 /SP)
I have 2 dedicated iSCSI NIC in my win 2003
SPA0 and SPB0 is on 192.168.204. network and SPA1 and SPB1 on 192.168.205. network
NIC 0 is on 192.168.204.
NIC 1 is on 192.168.205.
when i connect the SAN i can see 4 paths in powerpath and the path to SPA0 and SPB0 is marked active and SPA1 and SPB1 is marked unlicensed.
Now to the failover question:
Can i have failover from SPA0 to SPA1 (diffrent NIC) or can failover only be med within one NIC.
If i disconnect NIC 0 i loose the path to SPA0 and SPB0 , i would like powerpath to resume the connection on SPA1 and SPB1 but it´s not
As i pointed out i´m running unlicensed version of powerpath if this is a limitation.
Networkconfig:
SPA0 192.168.204.2
SPB0 192.168.204.3
SPA0 192.168.205.2
SPA1 192.168.205.3
NIC 0 192.168.204.20
NIC 1 192.168.205.20
/bjorn
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Conor
341 Posts
0
April 10th, 2008 23:00
I believe you have hit a limitation with PowerPath using a basic-failover license.
You have two HBAs connected to his array but are using a basic-failover license in PowerPath. This is not supported -- please see emc114228. Basic-failover is supported in single-HBA environments only. That's most likely the reason PowerPath didn't fail across the SPs; it was confused as it had a single-HBA license but noted multiple SCSI bus connections to the array.
You will need to purchase a license, or go to a single-HBA environment as supported without a PowerPath license.
Conor
null
looc
9 Posts
0
April 11th, 2008 00:00
/bjorn
looc
9 Posts
0
April 11th, 2008 00:00
Just so its clear, Powerpath will never failover to NIC1 if my NIC0 goes down when i use Powerpath basic (unlicensed)
So there is no use for two Nics connected to iSCSI and PP-basic
Conor
341 Posts
0
April 11th, 2008 00:00