Can I show the HBA link speed from OpenVMS??

[Tom Griesan]

Hi people!!

I've been searching for a way to show the link speed of the HBAs (FG devices) from VMS without going to the FC switch. I haven't been able to do it with anal/sys fc commands. Maybe I'm missing something easy...

Even if I could just show the current connection speed that would be cool, versus all the possible speeds.

Thanks!!
Tom

[Robert Atkinson]

Tom, I can't find anything from VMS - what about looking at the speed from the switch port instead?

Rob.

[Peter Zeiszler]

I have always gotten the information from the switch. I don't see anything obvious in SDA for it but thats where I would think it should be found.

[Robert Brooks_1]

I've just sent a note to one of the maintainers of the fibre channel port drivers. I'll report back whatever he says.


-- Rob

[Robert Brooks_1]

This is from the engineer who works on the fibre channel port drivers . . .

-----
The answer is yes, if you're willing to work for it. When we first did these drivers there was only 1 link speed so it was never extracted into an SDA extension display - it should be now, though, as this isn't the first time we've been asked this question


For Qlogic:

SDA> FC SET DEVICE FGA ! Or FGB, etc.
SDA> EXAMINE LSDB+LSDB$L_LINK_DATA_RATE

! 0 = 1G, 1 = 2G, 2 = 4G

For Emulex:

SDA> FC SET DEVICE FGA ! Or FGB, etc.
SDA> EXAMINE @(@(LSDB+LSDB$PS_READ_LA_FCCD)+FCCD$PS_MBX_RSP)+8*4
SDA>

! In bits 15:8, 0 = down, 4 = 1G, 8 = 2G, 0x10 = 4G

[Tom Griesan]

Awesome guys, thanks!!!

Perhaps I misunderstood...I'm not that great with SDA. I seem to get the wrong output for a 1gb Emulex, but it works for the 2gb Emulex. These devices are online and paths are connected thru them. It appears to me that I do get the value of 8 in that byte (bits 8 thru 15) for the 2gb. Also did 0x10 mean %x10 as in Hex A?


SDA> FC SET DEVICE FGA ! 1GB Emulex
SDA> EXAMINE @(@(LSDB+LSDB$PS_READ_LA_FCCD)+FCCD$PS_MBX_RSP)+8*4

SPDT+00CF0: 00000000.0000000A "........"

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

SDA> FC SET DEVICE FGA ! 2GB Emulex
SDA> EXAMINE @(@(LSDB+LSDB$PS_READ_LA_FCCD)+FCCD$PS_MBX_RSP)+8*4

FCLE_RCTX+00BF0: 00000000.0000080A "........"

Thanks again!
Tom

[Jur van der Burg]

What type of device is it? Find it out this way and post the output:

SDA> FC SET DEV FGA0 ! or FGB0 etc.
SDA> EX UCTX+UCTX$L_CTRL_ID

Jur.

[Tom Griesan]

SDA> fc set dev fga0
SDA> EX UCTX+UCTX$L_CTRL_ID
UCTX+00248: 8199C590.F80010DF "à ..ø.à .."

SDA> fc set dev fgb0
SDA> EX UCTX+UCTX$L_CTRL_ID
UCTX+00248: 818E9350.F80010DF "à ..øP..."

Thanks!
Tom

[Jur van der Burg]

That does not make sense. Both entries are the same type, an LP8000. And in a previous note you talk aout a 1Gb and a 2Gb version. Please clarify that.

Jur.

[Tom Griesan]

Hey Jur,

The 2GB cards are on another machine. Its the 1GB units that don't report correctly, presuming I'm doing everything right.

Sorry for that confusion, and I see how that was very misleading. I just wanted to show both FGA and B which are both the same type and as you indicated.

To Peter and Robert, thanks for the note. Yes we can and have looked at the switches. Its just kinduv a pain with a big SAN... It would be so nice to just pop it out from VMS.

Thanks again!!
Tom