Re: Opinions about DDS4?

[SK Suh]

At 6:33 PM -0400 07/18/2000, Steve Rothman wrote:
>Can anyone who's been using DDS-4 with a Mac for Retrospect Network 
>backup comment about reliability and maintenance?

The only problem I've had with our Sony DAT1 DDS-4 SkyData drive 
seems to have been resolved by replacing the Atto ExpressPCI card 
with an Adaptec 2940U2B model.

Reports indicate that all is now running excellently on a beige Power 
Macintosh G3, Mac OS 8.6 and Retrospect 4.2 (with updated driver 
v1.9). Haven't used this combination much for network backups yet, as 
I'm still pondering the Retrospect 4.3 update.

Stephen K. Suh


Network Admin / R&D Tel 613/228-0250
Studio Colour Group Fax 613/228-0254
6 Gurdwara Road, Suite 105
Nepean (Ottawa), ON K2E 8A3 Canada[EMAIL PROTECTED]


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Re: Opinions about DDS4?

[Craig Gaevert]

I'm in there with Nick.  I've the same setup and the same comments.  Solid and 
Reliable.

Nick Scalise wrote:

> I've got the Sony DDS4 with an APS enclosure. Ever since Dantz updated their
> drivers (shortly after the 4.2 update) all has been good.
>
> No drive or tape related failures or hiccups of any kind. I have also been
> using the odd DDS3 tape occasionally without problems too.
>
> Steve Rothman wrote:
>
> > Can anyone who's been using DDS-4 with a Mac for Retrospect Network
> > backup comment about reliability and maintenance?

--
Craig Gaevert, A.I.A.
Architect
TLCD Architecture
Santa Rosa, CA
[EMAIL PROTECTED]





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Re: Opinions about DDS4?

[Chuck Hornish]

Steve Rothman wrote:
> 
> Hi all,
> 
> Can anyone who's been using DDS-4 with a Mac for Retrospect Network
> backup comment about reliability and maintenance?

We use a Sony DDS-4 tape drive with excellent results. It is fast and
reliable. Follow normal maintenance procedures and it stays "happy"...:-)

-- 
Best Regards,

Chuck Hornish, KF6YBC
Narnia Information Systems, Inc.
Fountain Valley, California 92708 USA

Voice: 714-963-7742  FAX: 714-593-5808

mailto:[EMAIL PROTECTED]

Delivering precisely defined database solutions since 1992.


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RE: Opinions about DDS4?

[Christopher Dawe]

 Reply to:   RE: Opinions about DDS4?
Steve Rothman wrote:

>Sooo I'm back in the market for a tape drive, and my number 1 >priority is 
>reliability and maintenance requirements. Any reports >from DDS-4 users greatly 
>appreciated...

I've installed a single DDS-4 drive, and was impressed. Backing up a small workgroup 
of 2 G4s, a platinum G3, and a 7300 (host for the tape drive), I managed an aggregate 
backup speed of approximately 140 MB/minute. My client hasn't been using the drive for 
long enough to worry about mechanical issues, and has had no problems except a minor 
storage set and scheduling issue in Retrospect. It seems to be a great drive.

regards,

/cd

__
"I want to buy smoked ham...we're stocking up for winter."
 Christopher Dawe * Systems Engineer * Westwind Computing
  Seattle, Washington * (206) 522-3530






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Re: Opinions about DDS4?

[Owen Watson]

Don't know about DDS4, but DDS3 has been great after having the same 
problems as you with DDS2. . .

>Can anyone who's been using DDS-4 with a Mac for Retrospect Network 
>backup comment about reliability and maintenance?
>
-- 
.
Owen Watson
at home in Wellington, New Zealand


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Re: Opinions about DDS4?

[andrew]

dds-4 (and dds-3 for that matter) are much more reliable than dds-2. I've
been using a Mammoth ex8900, however, and find it to be more reliable than
any of the 4mm drives (faster too under most circumstances).

The 8mm tapes are a little bit more expensive ($45), but easily accommodate
40-gig, and the drive mechanism costs about the same.

Works with Retrospect using the advanced driver kit.


- Original Message -
From: "Steve Rothman" <[EMAIL PROTECTED]>
To: "retro-talk" <[EMAIL PROTECTED]>
Sent: Tuesday, July 18, 2000 6:33 PM
Subject: Opinions about DDS4?


>
> Hi all,
>
> Can anyone who's been using DDS-4 with a Mac for Retrospect Network
> backup comment about reliability and maintenance?
>
> Years ago I used to use DDS-2 (H-P) and go really fed up with tape
> heads that got dirty after minimal use, excessive cleaning
> requirements, complicated and ever-changing instructions regarding
> which brand tapes to use, alignment etc.
>
> So, I bought DVD-RAM instead, which after 18 months has been 100%
> reliable - never a media problem, never a file that couldn't be read,
> PERFECT. Unfortunately, DVD-RAM is just too small of an online
> capacity (2.6GB) and due to Retro's limitations on non-tape drives
> simply adding a DVD-RAM drive or two doesn't really serve to increase
> online capacity, if you use verification during the backup. (Also
> DVD-RAM's media cost is at least double than tape.)
>
> Sooo I'm back in the market for a tape drive, and my number 1
> priority is reliability and maintenance requirements. Any reports
> from DDS-4 users greatly appreciated...
>
> -Steve
>
>
>
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Re: Opinions about DDS4?

[Nick Scalise]

I've got the Sony DDS4 with an APS enclosure. Ever since Dantz updated their
drivers (shortly after the 4.2 update) all has been good.

No drive or tape related failures or hiccups of any kind. I have also been
using the odd DDS3 tape occasionally without problems too.

Steve Rothman wrote:

> Can anyone who's been using DDS-4 with a Mac for Retrospect Network
> backup comment about reliability and maintenance?
> 
> Years ago I used to use DDS-2 (H-P) and go really fed up with tape
> heads that got dirty after minimal use, excessive cleaning
> requirements, complicated and ever-changing instructions regarding
> which brand tapes to use, alignment etc.
> 
> So, I bought DVD-RAM instead, which after 18 months has been 100%
> reliable - never a media problem, never a file that couldn't be read,
> PERFECT. Unfortunately, DVD-RAM is just too small of an online
> capacity (2.6GB) and due to Retro's limitations on non-tape drives
> simply adding a DVD-RAM drive or two doesn't really serve to increase
> online capacity, if you use verification during the backup. (Also
> DVD-RAM's media cost is at least double than tape.)
> 
> Sooo I'm back in the market for a tape drive, and my number 1
> priority is reliability and maintenance requirements. Any reports
> from DDS-4 users greatly appreciated...

-- 
Nick Scalise
[EMAIL PROTECTED]



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Opinions about DDS4?

[Steve Rothman]

Hi all,

Can anyone who's been using DDS-4 with a Mac for Retrospect Network 
backup comment about reliability and maintenance?

Years ago I used to use DDS-2 (H-P) and go really fed up with tape 
heads that got dirty after minimal use, excessive cleaning 
requirements, complicated and ever-changing instructions regarding 
which brand tapes to use, alignment etc.

So, I bought DVD-RAM instead, which after 18 months has been 100% 
reliable - never a media problem, never a file that couldn't be read, 
PERFECT. Unfortunately, DVD-RAM is just too small of an online 
capacity (2.6GB) and due to Retro's limitations on non-tape drives 
simply adding a DVD-RAM drive or two doesn't really serve to increase 
online capacity, if you use verification during the backup. (Also 
DVD-RAM's media cost is at least double than tape.)

Sooo I'm back in the market for a tape drive, and my number 1 
priority is reliability and maintenance requirements. Any reports 
from DDS-4 users greatly appreciated...

-Steve



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