Mixing Fibre Channel HBA types on private-loop configurations can cause loop offline/timeouts.

Asset ID:	1-72-1002168.1
Update Date:	2010-07-19
Keywords:

Solution Type Problem Resolution Sure

Solution 1002168.1 : Mixing Fibre Channel HBA types on private-loop configurations can cause loop offline/timeouts.

Related Items


Sun Storage T3 Array
 Sun Storage T3+ Array
 Sun Storage A5200 Array
 Sun Storage A5000 Array

Related Categories


GCS>Sun Microsystems>Storage - Disk>Modular Disk - Other

PreviouslyPublishedAs
203073

Symptoms
Mixing the following combinations of Fibre Channel Host Bus Adapters (HBA) on private-loop configurations may cause loop offlines/timeouts:

SOC+ with any Sun SAN HBA
SOC+ with ISP2100
ISP2100 with any Sun SAN HBA

Resolution
The resolution is to use the same type of HBA for each initiator/host on the private loop and to ensure that the HBA is qualified with the host/storage combination.
For example, if there are SOC+ HBAs then ensure that there are no other types of HBAs on the same private-loop.

For example, if there are ISP2100 HBAs then ensure that there are no other types of HBAs on the same private-loop.

Additional Information
These combinations of HBAs when connected on the same physical private-loop can cause offlines or timeouts:

SOC+ with any Sun SAN HBA
SOC+ with ISP2100
ISP2100 with any Sun SAN HBA

All of the above HBAs can operate in 'private-loop' mode (Sun SAN HBAs also work in fabric or switch attached) however, certain operating differences can lead to offlines or timeouts if mixed types are connected on the same physical 'private-loop'.

Definitions.

SOC+ 1Gigabit/Sec SBus Dual FC Host Adapter (FC100/S) Option 6730
SOC+ E3x00/4x00/5x00/6x00 SBus I/O Board with SOC+ / Graphics I/O Board with SOC+
ISP2100 1Gigabit/Sec PCI Single FC Host Adapter (FC100/P) Option 6729
Sun SAN HBA as per www.sun.com/storage/san

HBA identification can be achieved by looking at the driver path within 'format' or using luxadm -e port. SOC+,ISP2100 and Sun SAN HBAs use different kernel drivers.

SOC+ will use SUNW,socal
ISP2100 will use SUNW,ifp
SUN SAN will use SUNW,qlc or SUNW,jfca

This issue affects only private-loop configurations.

Product
Sun StorageTek A5200 Array
Sun StorageTek A5100 Array
Sun StorageTek A5000 Array
Sun StorageTek T3+ Array
Sun StorageTek T3 Array

FC100, luxadm, HBA, private-loop
Previously Published As
81279

Change History
Date: 2005-05-04
User Name: 25440
Action: Approved
Comment: Publishing.
Version: 3
Date: 2005-05-04
User Name: 25440
Action: Accept
Comment:
Version: 0
Date: 2005-05-04
User Name: 34660
Action: Approved
Comment: reworked.

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