Dear admin colleagues !
We operate a DEC 3000_500 and a 2100_C500 MP,
both running Tru64 4.0D + 4.0F (each dual-boot)
with the intent to upgrade to 4.0D + 5.0 (still dual-boot)
or 4.0D + 4.0F + 5.0 (triple-boot).
My purpose is to increase disk capacity on the 3000/500
and tape backup capacity on either of the two.
Due to several changes of duties and to moves, I lack an
owner's manual for the 3000/500 - so I ask here
(all device/address info taken from "sys_check" output):
a) I assume the SCSI devices to be single-ended, narrow.
Should I check that ? If yes - how can I ?
(All I found on the SCSI host adapters is the "boot record" info
tc0 at nexus / scc0 at tc0 slot 7 /
tcds0 at tc0 slot 6 / scsi0 at tcds0 slot 0
and scsi1 at tcds0 slot 1
but I cannot take type codes from that.)
b) The 3000/500 has 2* RZ25, 1* RZ26 + 1* RRD42 internal.
It has an external SCSI cabinet "BA35X-VA"
which contains 6* RZ28 + 1* TLZ06.
In the external cabinet, can I replace two RZ28 (2 GB ? each)
by one or two larger disk(s) (4 .. 8 GB would be o.k.)
and use these two RZ28 to replace the two internal RZ25
(400 MB ? each) ?
Could I then use rz1, rz2 and rz3 (RZ28, RZ28, and RZ26)
for a triple-boot installation ?
c) I do have an external TZ87 drive (sticker: "SCSI SE") which
with an "Alpha Station 200 4/166" originally intended for
Alpha/NT, now running Alpha/Linux (SuSE 6.1).
Is a TZ87 the same as a DLT III drive, or does it just
look similar ?
d) It seems that the 3000/500 has only a single external SCSI
connection which leads to the external cabinet.
This cabinet contains seven devices, so all SCSI ids are in use.
If I take out one device (any restrictions ?),
could I then insert the TZ87 in the SCSI bus between system
and expansion cabinet ?
e) Would it be easier to connect an external tape to the 2100 ?
(condensed excerpt from messages:
scsi0 at psiop0 slot 0
rz0/rz1/rz2/rz3 at scsi0 target 0/1/2/3 ... RZ29B
tz5 at scsi0 target 5 lun 0 TLZ07
rz6 at scsi0 target 6 lun 0 RRD45
and
scsi1 at psiop1 slot 0
rz8 at scsi1 target 0 lun 0 RZ28D (C) DEC 0008) (Wide16)
rz9/rz10/rz11 at scsi1 target 1/2/3 ... RZ29B
All these devices are internal.
Does that really mean it has w _wide_ rz8 and all others
_narrow_ ?)
f) Is there any other backup device you would recommend,
especially one that fits internally (= 3.5 " size) ?
(Remember the TLZ06 and TLZ07 are already present,
but I am not too confident regarding their reliability
and would like increased tape capacity.)
Thank you for hints and pointers,
and I will summarize !
Joerg Bruehe
--
Joerg Bruehe, SQL Datenbanksysteme GmbH, Berlin, Germany
mailto: joerg_at_sql.de
Received on Fri Feb 11 2000 - 11:58:59 NZDT