Enabling SCSI-3 PGR


Enabling SCSI-3 PGR
Prev	Active/Active and Active/Passive settings in a cluster environment	Next

You must enable SCSI-3 support before using the Active/Active setting for DMP DSMs. (SCSI-3 support is disabled by default.)

Note:

Before enabling SCSI-3 PGR support, move any cluster disk groups to another node or deport the cluster disk groups.

In SFW 5.1 and later releases, SFW support for clustering environments can be selected to issue SCSI-2 or SCSI-3 reservations with the SFW Control Panel.

If SCSI-3 is selected in the SFW Control Panel, then there is no need to enable SCSI-3 PGR support for the DMP DSMs.
After selecting SCSI-3, you must issue the following CLI commands to complete the setting:
- net stop vxsvc
- net start vxsvc
If SCSI-2 is selected in the SFW Control Panel, then SCSI-3 PGR support can be enabled for the DMP DSMs by updating the Windows registry by running one of the files that is listed in the table below, or by using the vxdmpadm CLI command.

The files in the following table are provided to enable or disable SCSI-3 support for the type of storage array supported. The files are located on the product CD at ..\Tools\storage_foundation_for_windows\DMP_DSM_SCSI3_reg

Copy the files to your system and run the appropriate .reg for your storage array.

Note:

You must ensure that your storage array supports SCSI-3 PGR before using the Active/Active setting for DMP DSMs. Also check to see if your array manufacturer requires any special settings for a LUN to be enabled for SCSI-3 PGR.

Table: Files to Enable/Disable SCSI-3 PGR

Array Type

Enable SCSI-3 PGR

Disable SCSI-3 PGR

EMC Symmetrix 8000 Series
EMC Symmetrix DMX Series

EnableSupportSCSI3EMC.reg

DisableSupportSCSI3EMC.reg

IBM TotalStorage™ ESS800/ESS750
IBM TotalStorage™ DS8000

EnableSupportSCSI3IBMDS.reg

DisableSupportSCSI3IBMDS.reg

Hitachi TagmaStore Universal Storage Platform (USP100, USP600, and USP1100)
Hitachi TagmaStore Network Storage Controller (NSC55)
Hitachi TagmaStore Adaptable Modular Storage (AMS200 and AMS500)
Hitachi TagmaStore Workgroup Modular Storage (WMS100)
Hitachi Hitachi 9900 Lightning Series (9900 and 9900V)
Sun StorEdge SE9900 Series (SE9910, SE9960, SE9970V, SE9980V, and SE9990

EnableSupportSCSI3HDS.reg

DisableSupportSCSI3HDS.reg

HP StorageWorks XP128 Disk Array
HP StorageWorks XP1024 Disk Array
HP StorageWorks XP10000/XP12000 Disk Array

EnableSupportSCSI3HPXP.reg

DisableSupportSCSI3HPXP.reg

HP StorageWorks Enterprise Virtual Array (EVA4000, EVA6000, and EVA8000)

EnableSupportSCSI3HPEVA.reg

DisableSupportSCSI3HPEVA.reg

Network Appliance F800 Series
Network Appliance FAS200 Series (FAS250 and FAS270)
Network Appliance FAS900 Series (FAS920, FAS940, FAS960, and FAS980)
Network Appliance FAS3000 Series (FAS3020 and FAS3050)
Network Appliance NearStore Series
NetApp V-Series (GF980c, GF960c, V3050c, V3020c, and GF270c

Note:

The only Network Appliance arrays that are supported are those that are configured as an active/active hardware type (cfmode: standby for each Network Appliance filer).

EnableSupportSCSI3NETAPP.reg

DisableSupportSCSI3NETAPP.reg