New disk on MA12000/HSG80 does not show under Tru64 4.0G ...

[rakeshjain]

Hi,

I created a new disk on MA12000/HSG80 by combining 3 disks & presented to a server running Tru64 4.0G & did "scu scan edt" &
"scu show edt" but can not see new disk. I
tried even rebooting the server but this also did not show new disk on server.

Earlier 2 disks were created (some time back)
which show as connected to HSG80. Seems this time there is the some mistake in procedure. Can some one suggest the proper steps for creating new disk on MA12000/HSG80 & presenting it to Tru64 4.0G running on GS60 AlphaServer? Any hints/help will be highly appreciated. Thanks.

[Mark Poeschl_2]

On the HSG80 you must take these steps:

1. Create the container (STRIPESET or RAIDSET in this case)
TOP> ADD RAID DISK DISK DISK

2. Create a unit using the container
TOP> ADD UNIT D

3. Ensure that your server has access to the unit.
TOP> SHOW D
Under "Access:" look for either "All" or a list of connections. If access is "None" you must grant access to your server
TOP> SET D ENABLE=,...

To see what connections names are available use
TOP> SHOW CONN
Look for the connection names that correspond to your server

The best practice for HSG80s is to disable all access to a newly created unit and then enable just the connections you want:
TOP> SET D DISABLE=ALL
TOP> SET D ENABLE=,...

[rakeshjain]

Hi,

Finally, we discovered that Tru64 4.0G does not allow LUN > 7. So, safest is to create disks with LUN < 8. Seems to be a big limitation.

Thanks anyway. RAKESH

[Uwe Zessin]

Sure, that's because Tru64 version 4 is an *OLD* OS which uses SCSI-2 drivers, no multipathing, ...

[rakeshjain]

In case of Tru64 4.0G logical unit for Disk
must be in the range of 0-7. So, create disks keeping this in mind.