Linux Host cant see VMAX Array

Question

Hi Guys,

I am having problem in discovering VMAX in 2 of my linux hosts.2 Arrays has been zoned with the hosts.It can see the DMX-4 but it cant see the VMAX Array.The array microcode is 5874 and we are using the RHEL 4.

I can see the Hosts HBA logged in to the VMAX array.Solution Enabler 7.3 is installed and after issuing symcfg discover command it can see only the DMX-4,not the VMAX.Is there any specific port flag setting required for linux hosts to be connected to VMAX.Right now only the D Bit is set in the initiator group level for the hosts.

Any suggestion guys???Do i need to change any linux config files for this?????

dynamox · Answer

was the system rebooted after it was zoned to VMAX or at least try to rescan HBAs ?

echo "1" > /sys/class/fc_host/host0/issue_lip

echo "- - -" > /sys/class/scsi_host/host0/scan

echo "1" > /sys/class/fc_host/host1/issue_lip

echo "- - -" > /sys/class/scsi_host/host1/scan

where host0 and host1 represent your HBAs

MorbidAngel1 · Answer

Hi Dynamox,

Thanks for the reply.The host was rebooted several times but no results.We are issuing hp_rescan -a which actually scans all the devices within the hosts.

Let me know if you have any other suggestions.

dynamox · Answer

other flags on FAs were not changed, they are still at default settings ?

MorbidAngel1 · Answer

Hi ganapathi/Dynamox,

Engine can see the Initiators.and also Device has been assigned with the hosts.But it cant discover the VMAX.You can check the logs-

root@chturp1-/root> symmask -sid 1850 list logins | grep clcupr25

10000000c976a54e Fibre clcupr25 a54e 0d00d5 Yes Yes

10000000c976a54f Fibre clcupr25 a54f 1a00cc Yes Yes

10000000c976a54e Fibre clcupr25 a54e 0d00d5 Yes Yes

10000000c976a54f Fibre clcupr25 a54f 1a00cc Yes Yes

root@chturp1-/root> symmask -sid 1850 list logins | grep clcupr26

10000000c97692da Fibre clcupr26 92da 0d00c0 Yes Yes

10000000c97692db Fibre clcupr26 92db 1a00b8 Yes Yes

10000000c97692da Fibre clcupr26 92da 0d00c0 Yes Yes

10000000c97692db Fibre clcupr26 92db 1a00b8 Yes Yes

root@chturp1-/root> symaccess -sid 1850 show view clcupr25_mv

Symmetrix ID : 000012341234

Masking View Name : clcupr25_mv

Last updated at : 11:56:16 AM on Tue Jun 14,2011

Initiator Group Name : clcupr25_ig

Host Initiators

{

WWN : 10000000xxxxxx4e

WWN : 10000000xxxxxx4f

}

Port Group Name : 09e1_09f1_10e0_10f0

Director Identification

{

FA-9E:1

FA-10E:0

FA-9F:1

FA-10F:0

}

Storage Group Name : clcupp25_sg

Sym Dev Host

Name Dir:P Physical Device Name Lun Attr Cap(MB)

------ ----- ----------------------- ---- ---- -------

0537 09E:1 Not Visible 7 (M) 23003

10E:0 Not Visible 7 (M)

09F:1 Not Visible 7 (M)

10F:0 Not Visible 7 (M)

-------

Total Capacity 23003

root@chturp1-/root> symaccess -sid 1850 show view clcupr26_mv

sy

Symmetrix ID : 000012341234

Masking View Name : clcupr26_mv

Last updated at : 11:58:04 AM on Tue Jun 14,2011

Initiator Group Name : clcupr26_ig

Host Initiators

{

WWN : 10000000xxxxxxda

WWN : 10000000xxxxxxdb

}

Port Group Name : 09e1_09f1_10e0_10f0

Director Identification

{

FA-9E:1

FA-10E:0

FA-9F:1

FA-10F:0

}

Storage Group Name : clcupp26_sg

Sym Dev Host

Name Dir:P Physical Device Name Lun Attr Cap(MB)

------ ----- ----------------------- ---- ---- -------

0539 09E:1 Not Visible 8 (M) 23003

10E:0 Not Visible 8 (M)

09F:1 Not Visible 8 (M)

10F:0 Not Visible 8 (M)

-------

Total Capacity 23003

root@chturp1-/root> symaccess -sid 1850 -type init -detail show clcupr25_ig

Symmetrix ID : 000012341234

Initiator Group Name : clcupr25_ig

Last updated at : 11:15:59 AM on Wed Jun 15,2011

Port Flag Overrides : Yes

Enabled : Common_Serial_Number(C)

Disable_Q_Reset_on_UA(D)

SCSI_3(SC3)

SPC2_Protocol_Version(SPC2)

Disabled : N/A

Consistent Lun : No

Originator Port wwn : 10000000xxxxxx4e

User-generated Name : clcupxxxxxx4e

FCID Lockdown : No

Heterogeneous Host : No

Port Flag Overrides : Yes

Enabled : Common_Serial_Number(C)

Disable_Q_Reset_on_UA(D)

SCSI_3(SC3)

SPC2_Protocol_Version(SPC2)

Disabled : N/A

CHAP Enabled : N/A

Type : Fibre

Originator Port wwn : 10000000xxxxxx4f

User-generated Name : clcupxxxxxx4f

FCID Lockdown : No

Heterogeneous Host : No

Port Flag Overrides : Yes

Enabled : Common_Serial_Number(C)

Disable_Q_Reset_on_UA(D)

SCSI_3(SC3)

SPC2_Protocol_Version(SPC2)

Disabled : N/A

CHAP Enabled : N/A

Type : Fibre

root@chturp1-/root> symaccess -sid 1850 -type init -detail show clcupr26_ig

Symmetrix ID : 000012341234

Initiator Group Name : clcupr26_ig

Last updated at : 12:41:50 PM on Tue Jun 14,2011

Port Flag Overrides : Yes

Enabled : Disable_Q_Reset_on_UA(D)

Disabled : N/A

Consistent Lun : No

Originator Port wwn : 10000000xxxxxxda

User-generated Name : clcupxxxxxxda

FCID Lockdown : No

Heterogeneous Host : No

Port Flag Overrides : Yes

Enabled : Disable_Q_Reset_on_UA(D)

Disabled : N/A

CHAP Enabled : N/A

Type : Fibre

Originator Port wwn : 10000000xxxxxxdb

User-generated Name : clcupxxxxxxdb

FCID Lockdown : No

Heterogeneous Host : No

Port Flag Overrides : Yes

Enabled : Disable_Q_Reset_on_UA(D)

Disabled : N/A

CHAP Enabled : N/A

Type : Fibre

Message was edited by: SymmetrixForumsModerator Removed IDs/WWNs.

MorbidAngel1 · Answer

Hi Dynamox, cat /proc/scsi/scsi |grep -i vmax; output shows nothing!

dynamox · Answer

grep for 5874

MorbidAngel1 · Answer

Hi Dynamox, grep for 5874 is nothing....I think u r trying to get any devices from VMAX in the host but no luck!

SKT2 · Answer

look for dmx_series_support_matrix , P/N 300-000-166. You might need SC3 and SPC2 at the least.

marioantonio_pe · Answer

Hi, Do you try to change this flags over FAs for Linux

Common_Serial_Number(C)      : Enabled
Disable_Q_Reset_on_UA(D)     : Enabled
SCSI_3(SC3)                  : Enabled
SPC2_Protocol_Version(SPC2) : Enabled

Symmetrix

Linux Host cant see VMAX Array

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