Re: Retro Speed

2000-09-05 Thread Keepsake 

I apologize for reopening a dead thread on the list, but I just 
wanted to share.

Running Retrospect 4.2 on a Quadra 950 with 40 MB RAM over built-in 
ethernet to our ASIP server, I get 13-16 MB/min.

Having moved Retrospect and the tape drive over to the server* (after 
addressing stability concerns) and upgrading to 4.3, I get 25-40 
MB/min.

*PowerMac 9500/132
Using Seagate Travan tape drive (using byte-by-byte confirmation for safety)
Tape drive connected to external built-in SCSI interface
Initio Miles 40 MB/sec SCSI card
7200 RPM Atlas III drives

Michael Scheurer wrote:
>on 17/8/2000 4:27 AM, Matt Barkdull  wrote:
>
>>  Using the built in 10BaseT- 62MB/min
>>  Using an Asante 10/100 at 100 - 112MB/min.
>
>I wish I could get anywhere near this, mine tops out of about 40Mb/min even
>an a G4, mind you it's only a 2606 SCSI card with DDS3 drives, even with
>built-in SCSI on a 7300 I don't get above 40. :(
>
>In theory I should be getting 60Mb/min coming from our old NT server as I
>can get 1Mb/sec copying from it.

-- 
Eric Zylstra
[EMAIL PROTECTED]


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Re: Retro Speed

2000-08-17 Thread Michael Scheurer 

on 17/8/2000 4:27 AM, Matt Barkdull  wrote:

> Using the built in 10BaseT- 62MB/min
> Using an Asante 10/100 at 100 - 112MB/min.

I wish I could get anywhere near this, mine tops out of about 40Mb/min even
an a G4, mind you it's only a 2606 SCSI card with DDS3 drives, even with
built-in SCSI on a 7300 I don't get above 40. :(

In theory I should be getting 60Mb/min coming from our old NT server as I
can get 1Mb/sec copying from it.

michael



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RE: Retro Speed

2000-08-17 Thread Gowan Fenley 

Sara said:

All three drives are using the same SCSI card, on the same controller.  The
boot drive is IDE, however, not included in these backups speeds.

>>> third.  All three volumes on server.  What would cause the difference in
the
>>> speed?

My guess - file fragmentation or retries/errors caused by locked files in
use.

-gf




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Re: Retro Speed

2000-08-17 Thread Sara M 

All three drives are using the same SCSI card, on the same controller.  The
boot drive is IDE, however, not included in these backups speeds.

--
>From: Jon Gardner <[EMAIL PROTECTED]>
>To: retro-talk <[EMAIL PROTECTED]>
>Subject: Re: Retro Speed
>Date: Wed, Aug 16, 2000, 4:42 PM
>

> on 8/16/2000 3:06 PM, Matt Barkdull at [EMAIL PROTECTED] wrote:
>
>>> Back up rates differ using: G4/ 400, DDS-4, shared 10Base-T Ethernet.  80
>>> MB/min on first volume, 187 MB/min on second volume, and 93 MB/ min on
>>> third.  All three volumes on server.  What would cause the difference in the
>>> speed?
>>
>> 80 to 93 is not much, but the 187 would almost indicate that you have
>> a fast hard drive.
>>
>> Are they three separate disk?  If so, are they connected to SCSI card?
>>
>> Since the tape drive is most likely SCSI, I would guess that the
>> drive that got 187MB/min is also SCSI and on the same card.  That
>> would account for the speed difference.
>
> Actually, the 187Mb/min drive would be on a different controller than the
> tape drive, and the lower speeds would be on the same controller. If the
> boot drive is an IDE drive and you only have one SCSI card, then the
> 187Mb/min is probably the boot drive. Am I right?
>
> <><
> Jon L. Gardner '89, Computer Systems Manager <mailto:[EMAIL PROTECTED]>
> Texas A&M University Dept. of Food Services <http://food.tamu.edu/>
> Tel 979.458.1839 * Fax 979.845.2157 * Hip 979.229.4323
> PGP public key available at <http://food.tamu.edu/pgp/jon.html>
>
>
>
>
>
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Re: Retro Speed

2000-08-17 Thread Daniel Knight 

>>1999, Power Mac G3/300 (blue), AIT, shared 10Base-T ethernet, 59.2
>>MB/min. backing up an iMac, 229 MB/min. backing up the server
>>
>>2000, Power Mac G3/300, AIT, switched 10/100 ethernet, 347.6 MB/min best
>>throughput, 207 MB/min. backing up the server
>>
>>Dan Knight, information systems manager   [EMAIL PROTECTED]
>
>Dan, what SCSI card do you have for those?

Adaptec 2930CU. I also think AIT runs faster than DLT and that our second 
AIT drive runs faster than our first.

Dan Knight, information systems manager   [EMAIL PROTECTED]
Baker Book House Company 
6030 East Fulton   616-676-9185 x146
Ada, Michigan 49301 fax 616-676-9573

 - Macintosh: Love bug resistant, always Y2K ready



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Re: Retro Speed

2000-08-16 Thread Jon Gardner 

on 8/16/2000 3:06 PM, Matt Barkdull at [EMAIL PROTECTED] wrote:

>> Back up rates differ using: G4/ 400, DDS-4, shared 10Base-T Ethernet.  80
>> MB/min on first volume, 187 MB/min on second volume, and 93 MB/ min on
>> third.  All three volumes on server.  What would cause the difference in the
>> speed?
> 
> 80 to 93 is not much, but the 187 would almost indicate that you have
> a fast hard drive.
> 
> Are they three separate disk?  If so, are they connected to SCSI card?
> 
> Since the tape drive is most likely SCSI, I would guess that the
> drive that got 187MB/min is also SCSI and on the same card.  That
> would account for the speed difference.

Actually, the 187Mb/min drive would be on a different controller than the
tape drive, and the lower speeds would be on the same controller. If the
boot drive is an IDE drive and you only have one SCSI card, then the
187Mb/min is probably the boot drive. Am I right?

<><
Jon L. Gardner '89, Computer Systems Manager 
Texas A&M University Dept. of Food Services 
Tel 979.458.1839 * Fax 979.845.2157 * Hip 979.229.4323
PGP public key available at 





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Re: Retro Speed

2000-08-16 Thread Matt Barkdull 

>Back up rates differ using: G4/ 400, DDS-4, shared 10Base-T Ethernet.  80
>MB/min on first volume, 187 MB/min on second volume, and 93 MB/ min on
>third.  All three volumes on server.  What would cause the difference in the
>speed?

80 to 93 is not much, but the 187 would almost indicate that you have 
a fast hard drive.

Are they three separate disk?  If so, are they connected to SCSI card?

Since the tape drive is most likely SCSI, I would guess that the 
drive that got 187MB/min is also SCSI and on the same card.  That 
would account for the speed difference.



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Re: Retro Speed

2000-08-16 Thread Sara M 

Back up rates differ using: G4/ 400, DDS-4, shared 10Base-T Ethernet.  80 
MB/min on first volume, 187 MB/min on second volume, and 93 MB/ min on
third.  All three volumes on server.  What would cause the difference in the
speed?

--
>From: Matt Barkdull <[EMAIL PROTECTED]>
>To: "retro-talk" <[EMAIL PROTECTED]>
>Subject: Re: Retro Speed
>Date: Wed, Aug 16, 2000, 3:08 PM
>

>>1999, Power Mac G3/300 (blue), AIT, shared 10Base-T ethernet, 59.2
>>MB/min. backing up an iMac, 229 MB/min. backing up the server
>>
>>2000, Power Mac G3/300, AIT, switched 10/100 ethernet, 347.6 MB/min best
>>throughput, 207 MB/min. backing up the server
>>
>>Dan Knight, information systems manager   [EMAIL PROTECTED]
>
> Dan, what SCSI card do you have for those?
>
> I thought I was doing well when my local Mac backed up to DLT at 150MB/min!
>
> I'm currently using an Adaptec 2940 card.  I've never seen anything
> above 200MB/min around here.
>
> Would like to hear what others are getting as well.  Thanks!
>
>
>
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Re: Retro Speed

2000-08-16 Thread Matt Barkdull 

>1999, Power Mac G3/300 (blue), AIT, shared 10Base-T ethernet, 59.2
>MB/min. backing up an iMac, 229 MB/min. backing up the server
>
>2000, Power Mac G3/300, AIT, switched 10/100 ethernet, 347.6 MB/min best
>throughput, 207 MB/min. backing up the server
>
>Dan Knight, information systems manager   [EMAIL PROTECTED]

Dan, what SCSI card do you have for those?

I thought I was doing well when my local Mac backed up to DLT at 150MB/min!

I'm currently using an Adaptec 2940 card.  I've never seen anything 
above 200MB/min around here.

Would like to hear what others are getting as well.  Thanks!



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Re: Retro Speed

2000-08-16 Thread Daniel Knight 

I keep all my information in databases. It's kinda fun looking back like 
this.

1995, Workgroup Server 80 (Quadra 800), DAT, shared 10Base-T ethernet, 
best throughput 13.9 MB/min. (14.0 MB/min. backing up the server itself)

1996, Power Mac 6100/66, DAT, shared 10Base-T ethernet, 18.8 MB/min. 
(36.7 MB/min. backing up the server itself)

1998, Power Mac 6100/66, DAT 2, shared 10Base-T ethernet, 38.5 MB/min. 
backing up PCI Power Macs. 62.5 MB/min. backing up the server

1999, Power Mac G3/300 (blue), AIT, shared 10Base-T ethernet, 59.2 
MB/min. backing up an iMac, 229 MB/min. backing up the server

2000, Power Mac G3/300, AIT, switched 10/100 ethernet, 347.6 MB/min best 
throughput, 207 MB/min. backing up the server

Dan Knight, information systems manager   [EMAIL PROTECTED]
Baker Book House Company 
6030 East Fulton   616-676-9185 x146
Ada, Michigan 49301 fax 616-676-9573

 - Macintosh: Love bug resistant, always Y2K ready



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