need suggested tape drive replacement for Exabyte 8505 on OS 5.0.0C - plug and play, please!
Jean-Pierre Radley
|
| I am a non-administrator administrator for a business system whose EXB-8505
| died last week - I need a replacement which will not give me trouble to set
| up.
|
| I use Microlite Backup EDGE for all backups.
|
| I am running OS 5.0.0C on a Dec 433T <1991> 486/66 with an Adaptec 2742W
| card.
|
| What about Seagate Scorpion STD-24000N-SB, a 4mm DAT? I can't find it on
| SCO's list of compliant hardware. Is this supported in v5.0.0C ?
|
| What about H-P ? model C1599Ai ? is this compliant and supported for v5.0.0C
| ?
SCSI drives (be they SCSI tape drives, SCSI hard drives, or SCSI CD-ROM
drives) are not listed in the Compatibale HardWare Pages. They don't
have to be. SCSI Host Adapters are listed, and it's their job is to talk
to the hardware plugged in on their bus. Your Adaptec 2742 is listed
(and, obviously, you're using it every day).
My informal sense of the DDS tape vendors is that while HP used to have
the highest regard, lately Sony seems to be better regarded.
--
Jean-Pierre Radley <j...@jpr.com> XC/XT Custodian Sysop, CompuServe SCOForum
Geoffrey B. Rosenberg
I am a non-administrator administrator for a business system whose EXB-8505
died last week - I need a replacement which will not give me trouble to set
up.
I use Microlite Backup EDGE for all backups.
I am running OS 5.0.0C on a Dec 433T <1991> 486/66 with an Adaptec 2742W
card.
What about Seagate Scorpion STD-24000N-SB, a 4mm DAT? I can't find it on
SCO's list of compliant hardware. Is this supported in v5.0.0C ?
What about H-P ? model C1599Ai ? is this compliant and supported for v5.0.0C
?
I need HELP...please give me some experience to guide my decision.
Thank you all.
Geoff Rosenberg
QPo...@mediaone.net
P.S. - don't buy Exabyte - they don't want to support their units that fail
prematurely - mine was only 2.5 years old with only 1000 backup cycles for
600MB data on it. They want $400 to do any needed repair - and they wanted
to give me someone else's drive in the end.
Freddy
without fail. HP is my first recommendation. Sony second. Works well with
Backup edge.
<clip>
Michel Donais
> >My informal sense of the DDS tape vendors is that while HP used to have
> >the highest regard, lately Sony seems to be better regarded.
> >
Jean Pierre,
Whay to think about Onstram 50gig?
The capacity is there, the price appealing!
http://www.onstream.com/server/sc50.html
Michel
MrSmiley
[...]
|I am running OS 5.0.0C on a Dec 433T <1991> 486/66 with an Adaptec 2742W
|card.
|What about Seagate Scorpion STD-24000N-SB, a 4mm DAT? I can't find it on
|SCO's list of compliant hardware. Is this supported in v5.0.0C ?
|What about H-P ? model C1599Ai ? is this compliant and supported for v5.0.0C
|?
|Geoff Rosenberg
|QPo...@mediaone.net
HP has always been a solid choice, but I haven't tried any Sony's yet.
4mm DAT drives can cost a lot, when one considers the cost/GB on
systems requiring large size backups.
Your question about compatability in OSE is odd, because scsi tape drives
work if your HBA works, but is relevant to your drive supporting all the
tape commands. Some drives have a nice feature to FF the tape to the
EOD (End of data) mark, and RR to a specific mark, and others don't.
There may be other commands, but I have found my HP DDS1 does almost
everything (no RR seek).
There was an excellent article in the April/May, 1999, "SCO World,"
"SCO Certification: Taravan Tape Drives," in which the authors
claim that these QIC flavor drives are "quickly becoming the
standard on many new SCO Unix servers." The speed is definitely
there in these drive which ran near 120MB/min in compressed mode.
The price is reasonable (< $1000), and they tested models by
HP, Seagate, Aiwa, and Tecmar.
I would have liked it if they "aged" the tapes in an environment
box, testing the longevity of QIC-3220 tapes vs 4mm DAT's.
Mr:)
Jean-Pierre Radley
| >My informal sense of the DDS tape vendors is that while HP used to have
| >the highest regard, lately Sony seems to be better regarded.
| >
| without fail. HP is my first recommendation. Sony second. Works well with
| Backup edge.
I suggest that Sony has it over HP, and you recommend HP over Sony, and
you call that "concurring" with me ??
What are you smoking?
Bill Vermillion
Michel Donais <don...@ntic.qc.ca> wrote:
>> >My informal sense of the DDS tape vendors is that while HP used
>> >to have the highest regard, lately Sony seems to be better
>> >regarded.
>Jean Pierre,
Well I'm not JP but I think this comment may be pertinent.
>Whay to think about Onstram 50gig?
>The capacity is there, the price appealing!
Yup the capacity is there. Yup the price is right.
However in a server machine saving a couple of hundred may cost you
in the long run.
I've used magnetic media every day of my life (if you count both
HD's and floppies along with tape) for over 30 years. I got hooked
on recording as a kid. I even mixed an album that made it to the
top of Billboards soul charts a long time ago.
Having worked with things from the cheapest to $75K audio recorders
I'll say this. Based on experience I have yet to see a cheap
device that can perform as well and reliably as a well engineered
device.
The Onstream may be good. But knowing what it takes to reliably
record and retreive data from tape means that you have to PROVE
to me that the cheap solution is indeed a good solution.
Reliable tape currently means 1/4" QIC - up to 6GB the last I
recall in Tandberg. DAT - I prefer Sony. The desinged the orignal
audio DATs that spawned the DDS formats. You then have the
Exabytes, the AIT from Sony & Seagate, the DLT's from Quantum
(designed by the team at DEC), and newer technologies on the
horizon.
So you have to make a choice. Cheap, fast, or reliable.
Pick any two.
--
Bill Vermillion bv @ wjv.com
Yves Leclerc
are cheap compared to the cost of rebuilding lost data.
By-the-way!: I believe that OS 5.0.0 will not be supported/warranted for
Year 2000. You might consider inquring with SCO to see how to get Year 2000
support for your OS.
Yves Leclerc
Geoffrey B. Rosenberg <qpo...@mediaone.net> wrote in message
news:GvFm3.17524$kL2.5...@ndnws01.ne.mediaone.net...
> Hello SCO group!
>
> I am a non-administrator administrator for a business system whose
EXB-8505
> died last week - I need a replacement which will not give me trouble to
set
> up.
>
> I use Microlite Backup EDGE for all backups.
>
> I am running OS 5.0.0C on a Dec 433T <1991> 486/66 with an Adaptec 2742W
> card.
>
> What about Seagate Scorpion STD-24000N-SB, a 4mm DAT? I can't find it on
> SCO's list of compliant hardware. Is this supported in v5.0.0C ?
>
> What about H-P ? model C1599Ai ? is this compliant and supported for
v5.0.0C
> ?
>
D. Thomas Podnar
There are no plans to support OnStream DI30, DP30, SC30, or SC50 drives
on Novell or Unix servers.
There are TWO requirements for SCSI tape drives to successfully operate under
Unix operating systems:
1) They have to support the SCSI communications spec. (obviously).
2) They have to support ONE of the SCSI TAPE drives specs.
(this is not so obvious).
The smaller (under 70GB) OnStream products do NOT support a SCSI tape
drive specification (such as QIC-121) that allows them to run and operate
with the standard tape drivers in any operating system.
Although the "SC" models connect to the SCSI bus, they operate in a
proprietary mode and require special drivers, which are ONLY available for
Windows.
To my knowledge, they are the only SCSI drives currently shipping by
any manufacturer that do not conform to a SCSI tape spec and operate
with the standard Unix drivers.
We have high hopes for the OnStream ADR70, due this fall. It is supposed
to operate just fine under Unix.
Tom
---
D. Thomas Podnar - President t...@microlite.com Email
Microlite Corporation 724-375-6711 Voice
2315 Mill Street 724-375-6908 Fax
Aliquippa PA 15001-2228 888-257-3343 Toll Free Sales
+-------------------------------------------------------------------+
| Makers of Microlite BackupEDGE - Data Archiving Software For Unix |
| http://www.microlite.com ftp://ftp.microlite.com |
+-------------------------------------------------------------------+
| > >My informal sense of the DDS tape vendors is that while HP used to have
| > >the highest regard, lately Sony seems to be better regarded.
| > >
|
| Jean Pierre,
|
| Whay to think about Onstram 50gig?
| The capacity is there, the price appealing!
|
| http://www.onstream.com/server/sc50.html
|
| Michel
TelusPlanet
Seagate's Pythone.
D. Thomas Podnar <t...@microlite.com> wrote in message
news:990727104...@mlitedom.microlite.com...
Freddy
You are correct on your point. What I should have said was that my
experience caused me to prefer the HP first. My agreement with your
statement was that I agreed with HP and Sony as choices. Then I said, I
prefer the HP first, then Sony.
I certainly apologize for the lack of clarity. :)
Freddy
Bill Vermillion
<nospam...@nospamworldnet.att.net> wrote:
>Jean-Pierre: You are correct on your point. What I should have
>said was that my experience caused me to prefer the HP first. My
>agreement with your statement was that I agreed with HP and Sony as
>choices. Then I said, I prefer the HP first, then Sony. I certainly
>apologize for the lack of clarity. :) Freddy
In the DDS-2 line, I have not compared the DDS-3 variants, the Sony
is almost 50% faster than the HP because of the higher rotational
speed of the head, and thus the higher linear movement of tape.
Price is about the same but the Sony (for me at least) has superior
performance.
If you have access to them, look at the tech sheets for each
model and it becomes immediately apparent.