HP OpenVMS Systems Documentation
Content starts here

Guidelines for OpenVMS Cluster Configurations
Previous Contents Index

7.6.2 Setting Up FC Disks for Booting and Dumping

You must use the wwidmgr command to set up each device that you will use for booting or dumping. Once a device is set up, the console retains the information it requires to access the device in nonvolatile memory. You only have to rerun the wwidmgr command if the system configuration changes and the nonvolatile information is no longer valid.

The console provides a simplified setup command, called wwidmgr -quickset . This command can be used in either of the following cases:

  • You are setting up just one device.
  • All the devices you are setting up are accessed through the same ports on the HSG.

If neither description applies to your configuration, refer to the Wwidmgr User's Manual for additional instructions.

Example 7-3 illustrates the wwidmgr -quickset command. Note the following:

  • The command wwidmgr -quickset -udid 10 sets up the FC disk whose HSG80 device identifier is equal to 10.
  • The console device names are path dependent. Each path used to access an FC disk has a different name. In this example, the wwidmgr -quickset command establishes four console device names corresponding to the four paths from the host to the FC disk:
    • dga10.1001.0.2.1
    • dga10.1002.0.2.1
    • dgb10.1003.0.3.1
    • dgb10.1004.0.3.1
  • The second command, wwidmgr -quickset -udid 50 , sets up the FC disk whose HSG80 identifier is equal to 50.
  • The changes made by the wwidmgr command do not take effect until after the next system initialization, so the next step is to issue an initialize command.
  • After the initialization, the console show device command displays each FC adapter, followed by the paths through that adapter to each of the defined FC disks. The path-independent OpenVMS device name for each FC disk is displayed in the second column.

Example 7-3 Using widmgr -quickset 

P00>>>wwidmgr -quickset -udid 10

Disk assignment and reachability after next initialization:


6000-1fe1-0000-0d10-0009-8090-0677-0016
                          via adapter:         via fc nport:        connected:
dga10.1001.0.2.1         kgpsaa0.0.0.2.1      5000-1fe1-0000-0d14      Yes
dga10.1002.0.2.1         kgpsaa0.0.0.2.1      5000-1fe1-0000-0d11      No
dgb10.1003.0.3.1         kgpsab0.0.0.3.1      5000-1fe1-0000-0d13      Yes
dgb10.1004.0.3.1         kgpsab0.0.0.3.1      5000-1fe1-0000-0d12      No
P00>>>wwidmgr -quickset -udid 50

Disk assignment and reachability after next initialization:


6000-1fe1-0000-0d10-0009-8090-0677-0016
                          via adapter:         via fc nport:        connected:
dga10.1001.0.2.1         kgpsaa0.0.0.2.1      5000-1fe1-0000-0d14      Yes
dga10.1002.0.2.1         kgpsaa0.0.0.2.1      5000-1fe1-0000-0d11      No
dgb10.1003.0.3.1         kgpsab0.0.0.3.1      5000-1fe1-0000-0d13      Yes
dgb10.1004.0.3.1         kgpsab0.0.0.3.1      5000-1fe1-0000-0d12      No

6000-1fe1-0000-0d10-0009-8090-0677-0026
                          via adapter:         via fc nport:        connected:
dga50.1001.0.2.1         kgpsaa0.0.0.2.1      5000-1fe1-0000-0d14      Yes
dga50.1002.0.2.1         kgpsaa0.0.0.2.1      5000-1fe1-0000-0d11      No
dgb50.1003.0.3.1         kgpsab0.0.0.3.1      5000-1fe1-0000-0d13      Yes
dgb50.1004.0.3.1         kgpsab0.0.0.3.1      5000-1fe1-0000-0d12      No
P00>>>initialize
Initializing...
P00>>>show device
polling ncr0 (NCR 53C810) slot 1, bus 0 PCI, hose 1   SCSI Bus ID 7
dka500.5.0.1.1     DKA500                   RRD45  1645
polling kgpsa0 (KGPSA-B) slot 2, bus 0 PCI, hose 1
kgpsaa0.0.0.2.1            PGA0        WWN 1000-0000-c920-a7db
dga10.1001.0.2.1   $1$DGA10                 HSG80  R024
dga50.1001.0.2.1   $1$DGA50                 HSG80  R024
dga10.1002.0.2.1   $1$DGA10                 HSG80  R024
dga50.1002.0.2.1   $1$DGA50                 HSG80  R024
polling kgpsa1 (KGPSA-B) slot 3, bus 0 PCI, hose 1
kgpsab0.0.0.3.1            PGB0        WWN 1000-0000-c920-a694
dgb10.1003.0.3.1   $1$DGA10                 HSG80  R024
dgb50.1003.0.3.1   $1$DGA50                 HSG80  R024
dgb10.1004.0.3.1   $1$DGA10                 HSG80  R024
dgb50.1004.0.3.1   $1$DGA50                 HSG80  R024
polling isp0 (QLogic ISP1020) slot 4, bus 0 PCI, hose 1   SCSI Bus ID 15
dkb0.0.0.4.1       DKB0                     RZ1CB-CS  0844
dkb100.1.0.4.1     DKB100                   RZ1CB-CS  0844
polling floppy0 (FLOPPY) PCEB - XBUS hose 0
dva0.0.0.1000.0    DVA0                      RX23
polling ncr1 (NCR 53C810) slot 4, bus 0 PCI, hose 0   SCSI Bus ID 7
dkc0.0.0.4.0       DKC0                     RZ29B  0007
polling tulip0 (DECchip 21040-AA) slot 3, bus 0 PCI, hose 0
ewa0.0.0.3.0       00-00-F8-21-09-74 Auto-Sensing

Example 7-4 shows a boot sequence from an FC system disk. Note the following:

  • The boot device is $1$DGA50 . The user has elected to enter all four paths to the device in the bootdef_dev string. This ensures that the system will be able to boot even if a path has failed.
  • The first path on the boot command string, dga50.1002.0.2.1 , is not currently connected (that is, the disk is not on line to the HSG80 on that path). The console indicates this fact, retries a few times, then moves on to the next path in the bootdef_dev string. This path is currently connected, and the boot succeeds.
  • After booting, the OpenVMS SHOW DEVICE command confirms that OpenVMS has configured all five of the FC devices that were displayed by the wwidmgr -show wwid command, not only the two FC disks that were set up using the console wwidmgr -quickset command. The OpenVMS SHOW DEV/MULTIPATH command confirms that OpenVMS has configured all four paths to each disk.

Example 7-4 Boot Sequence from an FC System Disk 

P00>>>set bootdef_dev dga50.1002.0.2.1,dga50.1001.0.2.1,dgb50.1003.0.3.1,
dgb50.1004.0.3.1
P00>>>b
(boot dga50.1002.0.2.1 -flags 0,0)
dga50.1002.0.2.1 is not connected
dga50.1002.0.2.1 is not connected
dga50.1002.0.2.1 is not connected
dga50.1002.0.2.1 is not connected
failed to open dga50.1002.0.2.1
(boot dga50.1001.0.2.1 -flags 0,0)
block 0 of dga50.1001.0.2.1 is a valid boot block
reading 919 blocks from dga50.1001.0.2.1
bootstrap code read in
Building FRU table
base = 200000, image_start = 0, image_bytes = 72e00
initializing HWRPB at 2000
initializing page table at 1f2000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code


    OpenVMS (TM) Alpha Operating System, Version V7.2
...

$ SHOW DEVICE

Device                  Device           Error    Volume         Free  Trans Mnt
 Name                   Status           Count     Label        Blocks Count Cnt
$1$DGA10:     (FCNOD1)  Online               0
$1$DGA50:     (FCNOD1)  Mounted              0  V72_SSB        4734189   303   1
$1$DGA51:     (FCNOD1)  Online               0
$1$DGA60:     (FCNOD1)  Online               0
$1$DGA61:     (FCNOD1)  Online               0

$ SHOW LOGICAL SYS$SYSDEVICE
   "SYS$SYSDEVICE" = "$1$DGA50:" (LNM$SYSTEM_TABLE)

$ SHO DEV/MULTI

Device                  Device           Error         Current
 Name                   Status           Count  Paths    path
$1$DGA10:     (FCNOD1)  Online               0   4/ 4  PGB0.5000-1FE1-0000-0D11
$1$DGA50:     (FCNOD1)  Mounted              0   4/ 4  PGA0.5000-1FE1-0000-0D12
$1$DGA51:     (FCNOD1)  Online               0   4/ 4  PGA0.5000-1FE1-0000-0D13
$1$DGA60:     (FCNOD1)  Online               0   4/ 4  PGB0.5000-1FE1-0000-0D14
$1$DGA61:     (FCNOD1)  Online               0   4/ 4  PGB0.5000-1FE1-0000-0D11
Device                  Device           Error         Current
 Name                   Status           Count  Paths    path
$1$GGA42:               Online               0   4/ 4  PGB0.5000-1FE1-0000-0D11

7.7 Setting Up an HSG for Use with OpenVMS

This section describes the basic requirements for setting up an HSG for use with OpenVMS. Note that the steps for setting up an HSG60 and an HSG80 are the same, although the examples show the output for an HSG80. Refer to the HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide for more information.

These are the steps you must perform to configure an HSG for OpenVMS:

  1. If the HSG has dual controllers, set them to multibus failover mode ( Section 7.7.1).
  2. Set the controller's SCSI version to SCSI-3 ( Section 7.7.2).

    Note
    You do not need to set the controller's allocation class value. This parameter is not used by OpenVMS with the HSG.
  3. If you want to access the HSG Command Console LUN (CCL) from OpenVMS, assign it a device identifier ( Section 7.7.3).
    This will cause OpenVMS to configure the CCL as a generic SCSI device.

    Note
    In current versions of OpenVMS, you must assign a device identifier to the CCL. This requirement will be removed in a future update.
  4. Set the parameters for the HSG FC ports ( Section 7.7.4).
    Each port must have its FC profile set to PLDA and its topology set to FABRIC.
  5. Initialize and add logical units to the HSG configuration ( Section 7.7.5).
    In this step, you must assign a logical unit number and a device identifier to each logical unit.

    Note
    You do not need to set the logical unit's preferred path parameter. OpenVMS does not use this value in its path selection.
  6. Configure the HSG host connection table ( Section 7.7.6).

7.7.1 Setting a Dual HSG to Multibus Failover Mode

To set a dual HSG to multibus failover mode, you can use the following commands at the HSG console:

  • An initial SHOW command to show whether the dual controller is configured for failover.
  • The SET command that puts the controllers into multibus mode. Notice that this causes the other controller to restart.
  • A second SHOW command to show that the dual controller is configured for multibus failover.

The commands and output are shown in Example 7-5.

Example 7-5 Setting a Dual HSG to Multibus Failover Mode 


HSG> SHOW THIS_CONTROLLER
Controller:
        HSG80 ZG80900677 Software R024F-0, Hardware  E01
        NODE_ID          = 5000-1FE1-0000-0D10
        ALLOCATION_CLASS = 0
        SCSI_VERSION     = SCSI-2
        Not configured for dual-redundancy
            Controller misconfigured -- other controller present
        Device Port SCSI address 6
        Time: NOT SET
        Command Console LUN is disabled
Host PORT_1:
        Reported PORT_ID = 5000-1FE1-0000-0D11
        PORT_1_PROFILE   = SCC
        PORT_1_TOPOLOGY  = OFFLINE (offline)
Host PORT_2:
        Reported PORT_ID = 5000-1FE1-0000-0D12
        PORT_2_PROFILE   = SCC
        PORT_2_TOPOLOGY  = OFFLINE (offline)
        NOREMOTE_COPY
Cache:
        128 megabyte write cache, version 0012
        Cache is GOOD
        No unflushed data in cache
        CACHE_FLUSH_TIMER = DEFAULT (10 seconds)
Mirrored Cache:
        Not enabled
Battery:
        FULLY CHARGED
        Expires:             27-APR-2000
        NOCACHE_UPS
%CER--HSG> --13-JAN-1946 04:32:49 (time not set)-- Controllers misconfigured. -
Type SHOW THIS_CONTROLLER

HSG> SET MULTIBUS_FAILOVER COPY = THIS_CONTROLLER

%EVL--HSG> --13-JAN-1946 04:38:37 (time not set)-- Instance Code: 07050064 (not
yet reported to host)
 Template: 5.(05)
 Power On Time: 0. Years, 284. Days, 5. Hours, 18. Minutes, 27. Seconds
 Controller Model: HSG80
 Serial Number: ZG80900677 Hardware Version:  E01(29)
 Software Version: R024F(FF)
 Informational Report
 Instance Code: 07050064
 Last Failure Code: 08080000 (No Last Failure Parameters)

%EVL--HSG> --13-JAN-1946 04:38:37 (time not set)-- Instance Code: 43010064 (not
yet reported to host)
 Template: 4.(04)
 Power On Time: 0. Years, 284. Days, 5. Hours, 18. Minutes, 28. Seconds
 Controller Model: HSG80
 Serial Number: ZG80900677 Hardware Version:  E01(29)
 Software Version: R024F(FF)
 Informational Report
 Other Controller Serial Number: ZG80900641
 Failed Controller Target Number: 0.(00)
 LUNs Taken By This Controller:
  00000000
  00000000
  00000000
  00000000
  00000000
  00000000
  00000000
  00000000
 Instance Code: 43010064

...
%CER--HSG> --13-JAN-1946 04:38:37 (time not set)-- Received LAST GASP message-
from other controller, Last Failure Code: 08080000
HSG>

...
%CER--HSG> --13-JAN-1946 04:39:23 (time not set)-- Other controller restarted
HSG> SHOW THIS_CONTROLLER
Controller:
        HSG80 ZG80900677 Software R024F-0, Hardware  E01
        NODE_ID          = 5000-1FE1-0000-0D10
        ALLOCATION_CLASS = 0
        SCSI_VERSION     = SCSI-2
        Configured for MULTIBUS_FAILOVER with ZG80900641
            In dual-redundant configuration
        Device Port SCSI address 6
        Time: NOT SET
        Command Console LUN is disabled
Host PORT_1:
        Reported PORT_ID = 5000-1FE1-0000-0D11
        PORT_1_PROFILE   = SCC
        PORT_1_TOPOLOGY  = OFFLINE (offline)
Host PORT_2:
        Reported PORT_ID = 5000-1FE1-0000-0D12
        PORT_2_PROFILE   = SCC
        PORT_2_TOPOLOGY  = OFFLINE (offline)
        NOREMOTE_COPY
Cache:
        128 megabyte write cache, version 0012
        Cache is GOOD
        No unflushed data in cache
        CACHE_FLUSH_TIMER = DEFAULT (10 seconds)
Mirrored Cache:
        Not enabled
Battery:
        FULLY CHARGED
        Expires:             27-APR-2000
        NOCACHE_UPS
Other controller restarted

7.7.2 Setting an HSG to SCSI-3 Mode

Example 7-6 shows how to set the HSG to SCSI-3 mode. Note that the other controller in a dual configuration is set automatically to the same mode. You must restart the controllers for this operation to take effect.

Example 7-6 Setting an HSG to SCSI-3 Mode 

HSG> SET THIS_CONTROLLER SCSI_VERSION = SCSI-3
Warning 4030: Any units that would appear as unit 0 to a host will not be
              available when in SCSI-3 mode
Warning 4020: A restart of both this and the other controller is required
              before all the parameters modified will take effect
%CER--HSG> --13-JAN-1946 04:42:28 (time not set)-- Restart of this controller-
required
%CER--HSG> --13-JAN-1946 04:42:28 (time not set)-- Restart of the other-
controller required
Restart of this controller required
Restart of the other controller required

7.7.3 Setting the Device Identifier for the CCL

If you choose to have OpenVMS configure the CCL, then you must assign an identifier to the controller pair. This identifier must be unique for all HSG controller pairs in the cluster.

The following command sets the device identifier for the CCL of the controller pair to 42. This will cause OpenVMS to configure the CCL as a generic SCSI device. The device name will be $1$GGA42. Use the SHOW THIS_CONTROLLER command to verify the setting. 


HSG> SET THIS_CONTROLLER IDENTIFIER = 42

Note
In current versions of OpenVMS, you must assign a device identifier to the CCL. This requirement will be removed in a future update.

7.7.4 Setting the HSG Port Parameters

To set each HSG port's profile to PLDA and its topology to FABRIC, use the commands shown in Example 7-7. You can verify the settings with the SHOW THIS and SHOW OTHER commands.

Note that each port has a unique 64-bit identifier in the form 5000-1FE1-0000-0D11. These identifiers are displayed in the SHOW THIS and SHOW OTHER displays, next to the label Reported PORT_ID . These identifiers are used by OpenVMS to denote the multiple paths that may exist between the host and the logical unit.

Note
The command HSG> SET THIS_CONTROLLER PORT_1_PROFILE=PLDA , shown in Example 7-7, is required for ACS 8.4. If you are using ACS 8.5 or above, omit this step.)

Example 7-7 Setting the HSG Port Parameters 

HSG> SET THIS_CONTROLLER PORT_1_PROFILE = PLDA
Warning 4000: A restart of this controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:24:09-- Restart of this controller required
Restart of this controller required
HSG> SET THIS_CONTROLLER PORT_1_TOPOLOGY = FABRIC
Warning 4000: A restart of this controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:25:02-- Restart of this controller required
Restart of this controller required
HSG> SET THIS_CONTROLLER PORT_2_PROFILE = PLDA
Warning 4000: A restart of this controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:25:26-- Restart of this controller required
Restart of this controller required
HSG> SET THIS_CONTROLLER PORT_2_TOPOLOGY = FABRIC
Warning 4000: A restart of this controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:25:39-- Restart of this controller required
Restart of this controller required


HSG> SHOW THIS_CONTROLLER
Controller:
        HSG80 ZG80900677 Software R024F-0, Hardware  E01
        NODE_ID          = 5000-1FE1-0000-0D10
        ALLOCATION_CLASS = 0
        SCSI_VERSION     = SCSI-3
        Configured for MULTIBUS_FAILOVER with ZG80900641
            In dual-redundant configuration
        Device Port SCSI address 6
        Time: 17-MAR-1999 12:25:55
        Command Console LUN is lun 0 (IDENTIFIER = 42)
Host PORT_1:
        Reported PORT_ID = 5000-1FE1-0000-0D11
        PORT_1_PROFILE   = PLDA
        PORT_1_TOPOLOGY  = FABRIC (offline)
Host PORT_2:
        Reported PORT_ID = 5000-1FE1-0000-0D12
        PORT_2_PROFILE   = PLDA
        PORT_2_TOPOLOGY  = FABRIC (offline)
        NOREMOTE_COPY
Cache:
        128 megabyte write cache, version 0012
        Cache is GOOD
        No unflushed data in cache
        CACHE_FLUSH_TIMER = DEFAULT (10 seconds)
Mirrored Cache:
        Not enabled
Battery:
        FULLY CHARGED
        Expires:             27-APR-2000
        NOCACHE_UPS

HSG> SET OTHER_CONTROLLER PORT_1_PROFILE = PLDA
Warning 4010: A restart of the other controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:26:46-- Restart of the other controller required
Restart of the other controller required
HSG> SET OTHER_CONTROLLER PORT_1_TOPOLOGY = FABRIC
Warning 4010: A restart of the other controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:26:59-- Restart of the other controller required
Restart of the other controller required
HSG> SET OTHER_CONTROLLER PORT_2_PROFILE = PLDA
Warning 4010: A restart of the other controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:27:08-- Restart of the other controller required
Restart of the other controller required
HSG> SET OTHER_CONTROLLER PORT_2_TOPOLOGY = FABRIC
Warning 4010: A restart of the other controller is required before all the
              parameters modified will take effect
%CER--HSG> --17-MAR-1999 12:27:15-- Restart of the other controller required
Restart of the other controller required

HSG> SHOW OTHER_CONTROLLER
Controller:
        HSG80 ZG80900641 Software R024F-0, Hardware  E01
        NODE_ID          = 5000-1FE1-0000-0D10
        ALLOCATION_CLASS = 0
        SCSI_VERSION     = SCSI-3
        Configured for MULTIBUS_FAILOVER with ZG80900677
            In dual-redundant configuration
        Device Port SCSI address 7
        Time: 17-MAR-1999 12:27:31
        Command Console LUN is lun 0 (IDENTIFIER = 42)
Host PORT_1:
        Reported PORT_ID = 5000-1FE1-0000-0D13
        PORT_1_PROFILE   = PLDA
        PORT_1_TOPOLOGY  = FABRIC (offline)
Host PORT_2:
        Reported PORT_ID = 5000-1FE1-0000-0D14
        PORT_2_PROFILE   = PLDA
        PORT_2_TOPOLOGY  = FABRIC (offline)
        NOREMOTE_COPY
Cache:
        128 megabyte write cache, version 0012
        Cache is GOOD
        No unflushed data in cache
        CACHE_FLUSH_TIMER = DEFAULT (10 seconds)
Mirrored Cache:
        Not enabled
Battery:
        FULLY CHARGED
        Expires:             27-APR-2000
        NOCACHE_UPS

7.7.5 Setting Up Logical Units on the HSG

Setting up logical units on the HSG consists of the following steps, as shown in Example 7-8:

  1. Configure all the physical disk devices on the HSG with the CONFIG command.
  2. Configure each disk device as a logical unit as follows:
    1. Use the INITIALIZE command to initialize the disk.
    2. Use the ADD command to add the initialized disk as a host-visible logical unit.
      Choose a logical unit number that is unique for the HSG storage subsystem. The value chosen in Example 7-8 is 20, which results in a logical unit name of D20.
    3. Use the SET command to set a device identifier that will serve as the basis for the OpenVMS device name.
      This device identifier must be unique for all FC disks in the OpenVMS Cluster. The value chosen in Example 7-8 is 32020, which results in an OpenVMS device name of $1$DGA32020 for the logical unit.
      Note: This device identifier is limited to 9999, if the FC device is MSCP served. This restriction will be removed in a future release.

Example 7-8 Setting Up Logical Units on the HSG 

HSG> RUN CONFIG

Config Local Program Invoked

Config is building its tables and determining what devices exist
on the subsystem. Please be patient.

add disk DISK10000   1 0 0
add disk DISK10100   1 1 0
add disk DISK10200   1 2 0
add disk DISK20000   2 0 0

Config - Normal Termination
HSG> SHOW DISK FULL
Name          Type                      Port Targ  Lun        Used by
------------------------------------------------------------------------------
...
DISK20000     disk                         2    0    0
          DEC      RZ1CD-CS (C) DEC 0306
        Switches:
          NOTRANSPORTABLE
          TRANSFER_RATE_REQUESTED = 20MHZ (synchronous 20.00 MHZ negotiated)
        Size: 8378028 blocks

HSG> SHOW UNITS
No LUNs
HSG> INITIALIZE DISK20000
HSG> ADD UNIT D20 DISK20000
HSG> SET D20 IDENTIFIER = 32020
HSG> SHOW UNITS FULL
    LUN                                      Uses             Used by
------------------------------------------------------------------------------

  D20                                        DISK20000
        LUN ID:      6000-1FE1-0000-0D10-0009-8090-0677-0024
        IDENTIFIER = 32020
        Switches:
          RUN                    NOWRITE_PROTECT        READ_CACHE
          READAHEAD_CACHE        WRITEBACK_CACHE
          MAXIMUM_CACHED_TRANSFER_SIZE = 32
        Access:
                ALL
        State:
          ONLINE to this controller
          Not reserved
          NOPREFERRED_PATH
        Size: 8378028 blocks
        Geometry (C/H/S): ( 3708 / 20 / 113 )

Previous Next Contents Index