IBM Support

Recommended settings for EMC VMAX Storage

Preventive Service Planning


Abstract

This document outlines the recommended settings for EMC VMAX models supported with SAN Volume Controller , Storwize V7000, V5000 and FlashSystems V840 and V9000

Content

Please refer to this table when virtualizing VMAX Controllers with the above IBM Products.. Where other than recommended below the bit settings on VMAX should remain at factory default when virtualized behind SAN Volume Controller , Storwize V7000, V5000 and FlashSystems V840 and V9000

Recommended Director Bit Settings for VMAX with SVC
Director Bit SCSI Flags VMAX
10K 20k 40K
VMAX3
SVC/Storwize 7.3 and higher
100K 200K 400K
Notes
Negotiate_Reset(N) Disabled Disabled
Soft_Reset(S) Disabled Disabled
Environ_Set(E) Disabled Disabled
HP3000_Mode(B) Disabled Disabled
Common_Serial_Number(C) Enabled Enabled
Disable_Q_Reset_on_UA(D) Disabled Disabled
Sunapee(SCL) Disabled Disabled
Siemens(S) Disabled Disabled
Sequent(SEQ) Disabled Disabled
Avoid_Reset_Broadcast(ARB) Disabled Disabled
Server_On_AS400(A4S) Disabled Disabled
SCSI_3(SC3) Enabled Enabled 1. Factory Default setting is not to be changed since EMC requires setting the SC3 and SPC2 flags. 2. SC3 and SPC2 are advertised and is non-configurable.
SPC2_Protocol_Version(SPC2) Enabled Enabled 1. Factory Default setting is not to be changed since EMC requires setting the SC3 and SPC2 flags. 2. SC3 and SPC2 are advertised and is non-configurable.

Customers running SAN Volume Controller or Storwize versions earlier than 7.1 the SPC-2 bit should be set to "Disabled".

For customers moving from SAN Volume Controller or Storwize versions earlier than 7.1 to 7.1 and higher the SPC-2 bit should not be changed on a production system and should remain "Disabled".


Note that VMAX3 with 5977 the SPC-2 Bit is set to Enabled and is none configurable. VMAX 3 is supported on SVC and Storwize 7.3 and higher only


For customers running 7.1 and higher and installing a new VMAX the SPC-2 bit can remain at the default setting of "Enabled".


Changing the setting of the SPC-2 bit on a production system is not supported and may cause issues.
SCSI_Support1(OS2007) Enabled Enabled 1. This director bit can be modified to comply with the required setting or desired setting if it is optional either on the target port basis or initiator basis
WP_Bypass(WPBP) Disabled Disabled
Director Bit Fibre Specific Flags VMAX
10K 20k 40k
VMAX
100K 200K 400K
Notes
Volume_Set_Addressing(V) Disabled Disabled
Non_Participating(NP) Disabled Disabled
Init_Point_to_Point(PP) Enabled Enabled
Access_Logix(ACLX) Enabled Enabled
OpenVMS(OVMS) Disabled Disabled
AS400(AS4) Disabled Disabled
Auto_Negotiate(EAN) Enabled Enabled
VNX_Gateway_Direct_Attach Disabled Disabled
Show_ACLX_Device N/A Disabled Do not enable this bit for SVC attachment

Document information

More support for: SAN Volume Controller
7.5

Version: 6.4, 7.1, 7.2, 7.3, 7.4, 7.5

Operating system(s): Platform Independent

Reference #: S1005286

Modified date: 18 June 2015