Page Comparison

...

Note

In AlphaStation 400 configuration use the following syntax for KGPSA-CA storage adapter loading:

load KGPSA FGA irq_bus = isa

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The adapter instance name ("FGA" in the example above) is used then for parametrization, for example:

...

io_queue_depth

Parameter

io_queue_depth[N]

N is "XXYY" number, where:

XX - SCSI ID (0..15)
YY - LUN (00..07)

Type Numeric

Value

Specifies KZPBA I/O requests (read or write) for a given unit in a range 2..128

Setting this parameter enables KZPBA instance to run up-to the specifiied specified numbers of I/O requests (read or write) for unit N in parallel, thus improving the performance.

The default value set by controller is optimal for most of the cases. It may be needed to enlarge this number if guest OS I/O queue for a certain unit contains too much pending entries. In this case the value should be equal to an average size of the queue, collected statistically.

Please do not set this parameter without clear understanding the purpose.

By default parallel execution of I/O requests is disabled.

Example:

set PKA io_queue_depth[603]=4

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min_n_of_threads

Parameter

min_n_of_threads

Type Numeric

Value

Instructs KZPBA I/O to reserve a given number of working threads in a range 1..64, thus improving the performance.

All units of KZPBA instance share the I/O threads.

The default value is equal to number of units plus 2.

For optimization it is possible to set this parameter to sum of the "io_queue_depth" parameters for each unit plus 2. This assumption seems optimal for most of the cases.

Please do not set this parameter without clear understanding the purpose.

Example:

set PKA min_n_of_threads=16

...

Note that the WWID and UDID are automatically obtained from disk server (SAN) in this mode - it is very convenient in case of shared disks cluster configurations. Also note that some storage controllers may not support aquiring UDID - in this case this way of mapping cannot be used in case of OpenVMS (Tru64 Unix is Ok)!

See the "Presentation mode" section for details.

Include Page

	KBCOMMON:DOC-GoToToc
	KBCOMMON:DOC-GoToToc

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Supported	Not Supported	Not tested
LP8000 LP9000 LP9002 LP9802 LP10000 LP10000DC LP10000-S LPX1000 LP11002 LPe11002 (FC2242SR, A8003A) LPe1105 LPe12002 (AJ762B)	LPe1150 (FC2142SR, A8002A)	LPe11000

Also see the "host_bus_location" section for details

Include Page

	KBCOMMON:DOC-GoToToc
	KBCOMMON:DOC-GoToToc

...

It provides the following functionality:

Command Description

fc rescan {/verbose}

Scans connected SAN using FC adapters, discovers FC ports, storage controllers, logical units and then builds volatile FC database.

The "/verbose" qualifier enables FC communication trace on console (for diagnostic and troubleshooting).

fc show {adapter | port | device}

Displays corresponding part of volatile FC database.

fc set {boot | dump} udid <X>

Fills the environment variables wwid0..wwid3 and n1..n4 to identify path(s) to logical unit with the specified UDID.

These variables are later used by "INIT" to create device database entries and by OpenVMS/Tru64 to get access to boot and dump disks.

This command does NOT make any change to other environment variables.

fc set {boot | dump} wwid <X>

Fills the environment variables wwid0..wwid3 and n1..n4 to identify path(s) to logical unit with the specified WWID.

These variables are later used by "INIT" to create device database entries and by OpenVMS/Tru64 to get access to boot and dump disks.

This command does NOT make any change to other environment variables.

This parameter is useful if UDID is absent.

Info

Only right part of the displayed WWID is used for specification, for example:

P00>>>fc res
polling for units on kgpsa0, slot 2, bus 0, hose 0 ...
pga0.0.0.2.0 PGA0 F/W Rev 2.72A2
WWN 1000-0000-0263-0040
fabric WWN 2003-0060-0263-0040
directory WWN 20fc-0060-0263-0040
port 020100 CED 8GSH 0 F88V
WWN 5000-1fe0-0000-0bf1
lun 0000000000000000 DEC HSG80CCL V88F
UDID:-1 WWID:01000010:6000-1fe0-0000-0bf0-3030-3030-373f-3f3f
lun 0000000000000100 COMPAQ RZ1ED 0000
UDID:-1 WWID:01000010:6000-1fe0-0000-0bf0-3030-3030-3030-3030

P00>>>fc

P00>>>fc set boot wwid 6000-1fe0-0000-0bf0-3030-3030-3030-3030

fc clear

Clears environment variables wwid0..wwid3 and n1..n4, which automatically disable (but do NOT delete) device database entries representing FC attached devices.

This command does NOT affect volatile FC database.

Example of usage:

P00>>>fc show devices
     UDID:110 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0081 (ev:none)
                                               via adapter     via fc_port         con
[0]                   pga0.0.0.5.1    5000-1fe1-000b-6bf1 yes (ev:none)
[1]                   pga0.0.0.5.1    5000-1fe1-000b-6bf4 yes (ev:none)
   UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039 (ev:none)
                                               via adapter     via fc_port         con
[12]                  pga0.0.0.5.1    5000-1fe1-000b-6bf1 yes (ev:none)
[13]                  pga0.0.0.5.1    5000-1fe1-000b-6bf4 yes (ev:none)

...

Once the configuration steps described above are done, start the CHARON VM and wait for the P00>>>the P00>>> prompt.

Please refer to the following example with two FC adapters PGA and PGB defined:

initializing ...

polling for units on kzpba0, slot 4, bus 0, hose 0 ...
pka0.0.0.4.0 PKA0 Q-Logic/ISP PCI SCSI HBA

polling for units on kgpsa0, slot 5, bus 0, hose 0 ...
   pga0.0.0.5.0         PGA0            WWN 1000-0000-C92E-97C9
      fabric                            WWN 2003-0060-6920-4682
         directory                      WWN 20fc-0060-6920-4682
         port 021400                    WWN 5000-1fe1-000b-6bf1
            lun 0000000000000100        DEC     HSG80           V88F
         UDID:100       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80 V88F
         UDID:200 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC HSG80 V88F
         UDID:300       WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400    DEC HSG80 V88F
         UDID:400       WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC     HSG80 V88F
         UDID:108       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00    DEC HSG80 V88F
         UDID:208       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000

         port 021500                    WWN 5000-1fe1-000b-6bf4
            lun 0000000000000100        DEC     HSG80 V88F
         UDID:100       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80 V88F
         UDID:200       WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC HSG80 V88F
         UDID:300 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400        DEC HSG80 V88F
         UDID:400 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC HSG80 V88F
         UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00        DEC HSG80 V88F
         UDID:208 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000

polling for units on kgpsa1, slot 6, bus 0, hose 0 ...
   pgb0.0.0.6.0         PGB0    WWN 1000-0000-C92D-8D00
      fabric                            WWN 2003-0060-6920-45ff
         directory                      WWN 20fc-0060-6920-45ff
         port 011400                    WWN 5000-1fe1-000b-6bf2
            lun 0000000000000100        DEC     HSG80           V88F
         UDID:100 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80           V88F
         UDID:200 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC     HSG80           V88F
         UDID:300 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400        DEC     HSG80           V88F
         UDID:400 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC     HSG80           V88F
         UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00        DEC     HSG80           V88F
         UDID:208 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000
         port 011500                    WWN 5000-1fe1-000b-6bf3
            lun 0000000000000100        DEC     HSG80           V88F
         UDID:100 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80           V88F
         UDID:200 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC     HSG80           V88F
         UDID:300 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400        DEC     HSG80           V88F
         UDID:400 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC     HSG80           V88F
         UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00        DEC     HSG80           V88F
         UDID:208 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000
         port 011100                    failed port login

... enter console

P00>>>

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The next step is to configure paths for the FC storage:

P00>>>fc show devices

     UDID:100 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038 (ev:none)
                        via adapter     via fc_port         con
[0]                     pga0.0.0.5.0    5000-1fe1-000b-6bf1 no (ev:none)
[1]                     pga0.0.0.5.0    5000-1fe1-000b-6bf4 yes (ev:none)
[2]                     pgb0.0.0.6.0    5000-1fe1-000b-6bf2 no (ev:none)
[3]                     pgb0.0.0.6.0    5000-1fe1-000b-6bf3 yes (ev:none)
     UDID:200 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074 (ev:none)
                        via adapter     via fc_port         con
[4]                     pga0.0.0.5.0    5000-1fe1-000b-6bf1 no (ev:none)
[5]                     pga0.0.0.5.0    5000-1fe1-000b-6bf4 yes (ev:none)
[6]                     pgb0.0.0.6.0    5000-1fe1-000b-6bf2 no (ev:none)
[7]                     pgb0.0.0.6.0    5000-1fe1-000b-6bf3 yes (ev:none)
     UDID:300 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b (ev:none)
                        via adapter     via fc_port         con
[8]                     pga0.0.0.5.0    5000-1fe1-000b-6bf1 no (ev:none)
[9]                     pga0.0.0.5.0    5000-1fe1-000b-6bf4 yes (ev:none)
[10]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf2 no (ev:none)
[11]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf3 yes (ev:none)
     UDID:400 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080 (ev:none)
                        via adapter     via fc_port         con
[12]                    pga0.0.0.5.0    5000-1fe1-000b-6bf1 no (ev:none)
[13]                    pga0.0.0.5.0    5000-1fe1-000b-6bf4 yes (ev:none)
[14]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf2 no (ev:none)
[15]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf3 yes (ev:none)
     UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039 (ev:none)
                        via adapter     via fc_port         con
[16]                    pga0.0.0.5.0    5000-1fe1-000b-6bf1 yes (ev:none)
[17]                    pga0.0.0.5.0    5000-1fe1-000b-6bf4 no (ev:none)
[18]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf2 yes (ev:none)
[19]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf3 no (ev:none)
   UDID:208 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a (ev:none)
                        via adapter     via fc_port         con
[20]                    pga0.0.0.5.0    5000-1fe1-000b-6bf1 yes (ev:none)
[21]                    pga0.0.0.5.0    5000-1fe1-000b-6bf4 no (ev:none)
[22]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf2 yes (ev:none)
[23]                    pgb0.0.0.6.0    5000-1fe1-000b-6bf3 no (ev:none)

P00>>>fc set boot udid 400

P00>>>INIT

initializing ...

polling for units on kzpba0, slot 4, bus 0, hose 0 ...
pka0.0.0.4.0 PKA0 Q-Logic/ISP PCI SCSI HBA

polling for units on kgpsa0, slot 5, bus 0, hose 0 ...
   pga0.0.0.5.0         PGA0            WWN 1000-0000-C92E-97C9
      fabric                            WWN 2003-0060-6920-4682
         directory                      WWN 20fc-0060-6920-4682
         port 021400                    WWN 5000-1fe1-000b-6bf1
            lun 0000000000000100        DEC     HSG80           V88F
         UDID:100       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80 V88F
         UDID:200 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC HSG80 V88F
         UDID:300       WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400    DEC HSG80 V88F
         UDID:400       WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC     HSG80 V88F
         UDID:108       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00    DEC HSG80 V88F
         UDID:208       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000
         port 021500                    WWN 5000-1fe1-000b-6bf4
            lun 0000000000000100        DEC     HSG80 V88F
         UDID:100       WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80 V88F
         UDID:200       WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC HSG80 V88F
         UDID:300 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400        DEC HSG80 V88F
         UDID:400 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC HSG80 V88F
         UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00        DEC HSG80 V88F
         UDID:208 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000

polling for units on kgpsa1, slot 6, bus 0, hose 0 ...
   pgb0.0.0.6.0         PGB0    WWN 1000-0000-C92D-8D00
      fabric                            WWN 2003-0060-6920-45ff
         directory                      WWN 20fc-0060-6920-45ff
         port 011400                    WWN 5000-1fe1-000b-6bf2
            lun 0000000000000100        DEC     HSG80           V88F
         UDID:100 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80           V88F
         UDID:200 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC     HSG80           V88F
         UDID:300 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400        DEC     HSG80           V88F
         UDID:400 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC     HSG80           V88F
         UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00        DEC     HSG80           V88F
         UDID:208 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000
         port 011500                    WWN 5000-1fe1-000b-6bf3
            lun 0000000000000100        DEC     HSG80           V88F
         UDID:100 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0038
            lun 0000000000000200        DEC     HSG80           V88F
         UDID:200 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0074
            lun 0000000000000300        DEC     HSG80           V88F
         UDID:300 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-007b
            lun 0000000000000400        DEC     HSG80           V88F
         UDID:400 WWID:01000010:6000-1fe1-000b-6bf0-0009-9081-1283-0080
            lun 0000000000006c00        DEC     HSG80           V88F
         UDID:108 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-0039
            lun 0000000000006d00        DEC     HSG80           V88F
         UDID:208 WWID:01000010:6000-1fe1-000b-6bf0-0009-0440-4014-003a
            lun 0000000000000000
         port 011100                    failed port login

... enter console

P00>>>SHOW DEV

sys0.0.0.0.0            SYS0          System ROOT Device
ewa0.0.0.3.0            EWA0          00-51-71-F5-8E-D8
pka0.0.0.4.0            PKA0          Q-Logic/ISP PCI SCSI HBA
pga0.0.0.5.0            PGA0          WWN 1000-0000-C92E-97C9
pgb0.0.0.6.0    PGB0          WWN 1000-0000-C92D-8D00
pqa0.0.0.15.0           PQA0          ALi 1553C Integrated IDE Controller
pqb0.0.1.15.0 PQB0          ALi 1553C Integrated IDE Controller
dqa0.0.0.15.0           DQA0          Virtual ATAPI - TEAC DW-224E-V
dka0.0.0.4.0            DKA0          Virtual SCSI Disk (C)SRI
dga400.1001.0.5.0       $1$DGA400     DEC     HSG80           V88F
dga400.1002.0.5.0       $1$DGA400     DEC     HSG80           V88F
dgb400.1003.0.6.0       $1$DGA400     DEC     HSG80           V88F
dgb400.1004.0.6.0       $1$DGA400     DEC     HSG80           V88F

P00>>>BOOT $1$DGA400

dga400.1001.0.5.0: failed to open device
(boot dga400.1002.0.5.0)
jumping to bootstrap code

OpenVMS (TM) Alpha Operating System, Version V7.3-2
© Copyright 1976-2003 Hewlett-Packard Development Company, L.P.
%SMP-I-CPUTRN, CPU #02 has joined the active set.
%SMP-I-CPUTRN, CPU #03 has joined the active set.
%SMP-I-CPUTRN, CPU #01 has joined the active set.
Please enter date and time (DD-MMM-YYYY HH:MM)

...

Versions Compared

Old Version 29

New Version Current

Key

io_queue_depth

min_n_of_threads