SUMMARY:connecting DEC-Servers to EMC-Box

From: Willig Reimund <Willig.Reimund_at_gdr.de>
Date: Mon, 11 Jan 1999 16:35:36 +0100

Hello again,
at first many thanks to everyone who answered:

orig. Question:
we would like to connect several alpha servers to an EMC symmetrix
3700-18 Box.

- Does anyone has any experiences??
- the docu of EMC states that A11 firmware must be accompanied by te
latest jumbo patch for DU 4.0B. We are running DU 4.0D but didn't do a
firmware update to the kzpsa.
- how could i verify the firmware release?

solutions:
the firmwarecode for the KZPSA could be found as follows:

uerf -o full -r 300 -R | more

Look for the entries with the following format :
     pza0 firmware version: DEC P01 A10
the last entry (here A10) is the firmware release.

Concerning the other questions i simply append the summary of a similar
question some time before (thanks to Miguel Fliguer):

The main points to check:
1) The Symmetrix array can handle 15 devices on the FW SCSI chain, but
Digital Unix only supports 7.
2) A Symmetrix entry on the /etc/ddr.dbase may be needed.
3) The disktab entry may not be needed since the dynamic geometry labels
can be used.
4) There are some special considerations for ASE (we're not using it
anyway)
5) It's a must to have a microcode release which supports stripped
metavolumes (we will have it).
6) EMC supports dual paths to the disks, so you could access the same
device through two SCSI channels. DU doesn't understand this (not until
4.0F according to Viktor), so one may find differentdevices referencing
the same physical unit, which is potentially a badthing. The solution is
to ask EMC to remove the secondary paths.





 mit freundlichen Gruessen
          Reimund Willig
------------------------------------------
e-mail: willig.reimund_at_gdr.de
       tel: +49-5205-941747
      fax: +49-5205-941725
  ** Schwer ist leicht was **
-----------------------------------------
Received on Mon Jan 11 1999 - 15:37:48 NZDT

This archive was generated by hypermail 2.4.0 : Wed Nov 08 2023 - 11:53:38 NZDT