13 Mar
2002
13 Mar
'02
6:27 p.m.
Hi ho,
now I hauled it home, the modules of this very impressive MTI
StorageWare assembly. It's a marvellous piece of super redundant
24/7 operational gear for any VAX cluster. The fun starts with
a box that probably emulates an HSC90 or so, that one has two
power supplys, and there are two of those boxes each having the
4 redundant CI connectors. Each box has 3 SCSI (?) connectors
that run to another 4-box assembly and there is another layer
of redundancy. Then all this drives 4 arrays of 4GB SCSI disks
each having 8 such disks. I conclude that this must be a RAID
array, because I don't know how else one could address 8 disks
on a SCSI bus (isn't 7 devices appart from the controller the
maximum?) Initially it seemed straight-forward to use as a
simple CI/HSC to SCSI adapter, but now it looks like this stuff
is best kept as one big impressive unit. I'm going to try find
the manuals for this too. Does anyone have experience with
this kind of gear?
regards,
-Gunther
--
Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org
Medical Information Scientist Regenstrief Institute for Health Care
Adjunct Assistant Professor Indiana University School of Medicine
tel:1(317)630-7960 http://aurora.regenstrief.org
14 Mar
14 Mar
2:45 a.m.
Sounds like an MTI Stingray subsystem... what specifically would you like to
know? I had a few in operation years ago on a cluster of 6230's.
Gunther Schadow wrote:
Hi ho,
now I hauled it home, the modules of this very impressive MTI
StorageWare assembly. It's a marvellous piece of super redundant
24/7 operational gear for any VAX cluster. The fun starts with
a box that probably emulates an HSC90 or so, that one has two
power supplys, and there are two of those boxes each having the
4 redundant CI connectors. Each box has 3 SCSI (?) connectors
that run to another 4-box assembly and there is another layer
of redundancy. Then all this drives 4 arrays of 4GB SCSI disks
each having 8 such disks. I conclude that this must be a RAID
array, because I don't know how else one could address 8 disks
on a SCSI bus (isn't 7 devices appart from the controller the
maximum?) Initially it seemed straight-forward to use as a
simple CI/HSC to SCSI adapter, but now it looks like this stuff
is best kept as one big impressive unit. I'm going to try find
the manuals for this too. Does anyone have experience with
this kind of gear?
regards,
-Gunther
--
Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org
Medical Information Scientist Regenstrief Institute for Health Care
Adjunct Assistant Professor Indiana University School of Medicine
tel:1(317)630-7960 http://aurora.regenstrief.org
--
David Barnes
davebarnes(a)adelphia.net
OpenVMS , Tru64, Netbsd, Linux guru
and collector of DEC equipment
7:38 p.m.
David Barnes wrote:
Sounds like an MTI Stingray subsystem... what
specifically would you like to
know? I had a few in operation years ago on a cluster of 6230's.
For example, what are all those boxes for? What is the simplest way
of attaching other SCSI devices, such as my DAT drive or random
SCSI disks? Can I plug those directly into the CI/HSC box or is all
that other gear needed? How do I operate the front panel, how do
I change node numbers, how address the disks? Is it juts exactly like
an HSC?
thanks,
-Gunther
--
Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org
Medical Information Scientist Regenstrief Institute for Health Care
Adjunct Assistant Professor Indiana University School of Medicine
tel:1(317)630-7960 http://aurora.regenstrief.org
8:09 p.m.
At 01:38 AM 3/15/02 -0500, Gunther Schadow wrote:
For example, what are all those boxes for?
Well this machine probably implements both SCA and CI, and on the SCSI
drives implements RAID.
What is the simplest way of attaching other SCSI
devices, such as my DAT
drive or random SCSI disks?
DAT drives might work, but "random SCSI disks" most definitely won't work.
If its any sort of RAID box the disks must all be the same size and matched
in speed. This allows the box to stripe data across several drives. The
benefits are speed and data protection since you can set it up so that
losing any single drive can be recovered from automatically.
Can I plug those directly into the CI/HSC box or is
all that other gear
needed?
I'm betting you need to power up the whole kit and kaboodle.
--Chuck
15 Mar
15 Mar
1:52 a.m.
its similiar to an HSC in operation, setup is quite different. If I recall
correctly we never were able to make 'just any scsi disk' work properly with
it...
So we just stuck with the disks that were 'qualified' by MTI.
Lemme see if I can dig up some docs... I might still have that stuff buried
somewhere...
Gunther Schadow wrote:
David Barnes wrote:
--
David Barnes
davebarnes(a)adelphia.net
OpenVMS , Tru64, Netbsd, Linux guru
and collector of DEC equipment
Sounds like an MTI Stingray subsystem... what
specifically would you like to
know? I had a few in operation years ago on a cluster of 6230's.
For example, what are all those boxes for? What is the simplest way
of attaching other SCSI devices, such as my DAT drive or random
SCSI disks? Can I plug those directly into the CI/HSC box or is all
that other gear needed? How do I operate the front panel, how do
I change node numbers, how address the disks? Is it juts exactly like
an HSC?
thanks,
-Gunther
--
Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org
Medical Information Scientist Regenstrief Institute for Health Care
Adjunct Assistant Professor Indiana University School of Medicine
tel:1(317)630-7960 http://aurora.regenstrief.org
8166
days inactive
8168
days old
4 comments
3 participants
participants (3)
-
cmcmanis＠mcmanis.com -
davebarnes＠adelphia.net -
gunther＠aurora.regenstrief.org