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VAX 4300 disk logicals change

Nahmad_1
Advisor

VAX 4300 disk logicals change

Hi There

We have an old VAX 4300 with VMS 5.5. I want to baseline it from the tapes (including vms and application) as VMS is corupt now. It used to display its disk like $1$DIA0 but now as R2UZZA$DIA0. Is there any way to change it to $1$DIA0 on the >>>> ?

Thanks in Advance

Ahmad
7 REPLIES
Volker Halle
Honored Contributor

Re: VAX 4300 disk logicals change

Ahmad,

seems like you've swapped the DSSI disk. You can set the ALLCLASS parameter in the DSSI ISE.

This is described here:

http://h71000.www7.hp.com/wizard/wiz_1179.html

Volker.
labadie_1
Honored Contributor

Re: VAX 4300 disk logicals change

Volker did a typo, it is
ALLOCLASS
Volker Halle
Honored Contributor

Re: VAX 4300 disk logicals change

Gerard,

ALLOCLASS is the OpenVMS system parameter name.

ALLCLASS is the parameter name on the DSSI ISE.

The DSSI disk contains a MSCP server and - by default (ALLCLASS=0) - uses it's NODENAME to present the disk. If ALLCLASS is .NE. 0, it will present the disk using $n$DIAx: with n being the allocation class number (ALLCLASS).

Volker.
Shriniketan Bhagwat
Trusted Contributor

Re: VAX 4300 disk logicals change

Hi,

Steps to implement Volkerâ s above explanation.

Try this.

$ mc sysgen
SYSGEN> SHOW ALLOCLASS
Parameter Name Current Default Min. Max. Unit Dynamic
-------------- ------- ------- ------- ------- ---- -------
ALLOCLASS 0 0 0 255 Pure-numbe
SYSGEN>
SYSGEN> USE CURRENT
SYSGEN> SET ALLOCLASS 1
SYSGEN> WRITE CURRENT
SYSGEN> SHOW ALLOCLASS
Parameter Name Current Default Min. Max. Unit Dynamic
-------------- ------- ------- ------- ------- ---- -------
ALLOCLASS 1 0 0 255 Pure-numbe
SYSGEN>EXIT

ALLOCLASS is not dynamic parameter. Hence you need to reboot the machine after setting the ALLOCLASS parameter.

Regards,
Ketan
Volker Halle
Honored Contributor

Re: VAX 4300 disk logicals change

Ketan,

Ahmad is talking about the DSSI device name as shown on the console prompt >>>

This does NOT involve the OpenVMS ALLOCLASS system parameter at all.

The ALLCLASS parameter in the DSSI ISE needs to be changed.

Volker.
Shriniketan Bhagwat
Trusted Contributor

Re: VAX 4300 disk logicals change

Ok, Sorry about that.
Hoff
Honored Contributor

Re: VAX 4300 disk logicals change

> ALLOCLASS is not dynamic parameter. Hence you need to reboot the machine after setting the ALLOCLASS parameter.

For both this cited host allocation case and for the allocation classes that are present in storage controllers such as the ISE/DSSI and HSC/CI and EVA series storage controllers, you may (will) need to reboot the whole cluster to get the allocation classes reset; to get references to the old classes removed from the cluster.