Tape drive for 'dump' backup

Tape drive for 'dump' backup

Post by Andrew Prihod » Mon, 08 Jul 1996 04:00:00



Hi!

I am running a WWW site on a Dell Pentium PC under 2.1R.  For backup purposes,
I need to buy a tape drive that preferably could store the entire filesystem
which has 1.2G of data (several tapes is fine too.)  Does anyone know of the
best tape drive in terms of both capacity and ease of installation?

Thanks a lot in advance,

                                -Andrew

 
 
 

Tape drive for 'dump' backup

Post by Brian Some » Tue, 09 Jul 1996 04:00:00


: Hi!

: I am running a WWW site on a Dell Pentium PC under 2.1R.  For backup purposes,
: I need to buy a tape drive that preferably could store the entire filesystem
: which has 1.2G of data (several tapes is fine too.)  Does anyone know of the
: best tape drive in terms of both capacity and ease of installation?

I use a 4/8Gb DAT.  It cost #700 two years ago.  I think it goes for
about #650 now.  It stores all my data on one tape, is easy to install
(it's SCSI - all SCSI is easy to install), it's also external.

If this is more than your budget, I would still suggest getting SCSI.
Also, buy something that is at least twice the size of your hard disk.
This makes it (a bit) future proof.

--

Don't _EVER_ lose your sense of humour....

 
 
 

Tape drive for 'dump' backup

Post by J Wuns » Tue, 09 Jul 1996 04:00:00



> I am running a WWW site on a Dell Pentium PC under 2.1R.  For backup
> purposes, I need to buy a tape drive that preferably could store the
> entire filesystem which has 1.2G of data (several tapes is fine
> too.)  Does anyone know of the best tape drive in terms of both
> capacity and ease of installation?

No such thing like ``the best foobar'', but i'm rather happy with my
Tandberg TDC4222.  It's a 2.5 Gig QIC drive, it can work with
everything from 150 MB to 2.5 GB QIC cartridges, even with hardware
compression for the 2.5G parts.

It's in the same price region as a DAT drive, but many people consider
helical drives (DAT, 8 mm video Exabyte) a poor backup solution.

--
cheers, J"org


Never trust an operating system you don't have sources for. ;-)

 
 
 

Tape drive for 'dump' backup

Post by John Luc » Thu, 11 Jul 1996 04:00:00



>Hi!

>I am running a WWW site on a Dell Pentium PC under 2.1R.  For backup purposes,
>I need to buy a tape drive that preferably could store the entire filesystem
>which has 1.2G of data (several tapes is fine too.)  Does anyone know of the
>best tape drive in terms of both capacity and ease of installation?

I have been using HP "SureStore" DDS (DAT) drives. The model 2000 holds 2GB
and the model 6000 holds 4-16GB (4 w/o HW compression, up to 16GB w/ hw
compression). I recently had a 2GB Seagate Barracuda "melt down" and
restoration went without a hitch from level 0 dump tapes on a HP SureStore
2000 tape drive (FreeBSD v2.1.0-RELEASE).


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Tape drive for 'dump' backup

Post by David Fi » Sun, 14 Jul 1996 04:00:00


If you are going to be using a LOT of tapes, then a DAT drive may
be cheaper in the long run because of the media costs. But...

That being said, I recently picked up a Conner (now Seagate) TapeStor TSM4000R
SCSI QIC MiniCart drive for less than half the price of a DAT. It holds 2G
native on a QIC-3080XLF QIC Wide tape. I bought it primarily for my Win95
system but I do have FreeBSD installed for testing. I did a quick tar and it
seemed to work fine. Under Win95 I did a full backup (with compression) and got
about 38MB/sec with 1G of data.

Dave

 
 
 

Tape drive for 'dump' backup

Post by Steinar Ha » Sun, 14 Jul 1996 04:00:00


[David Fisk]

| If you are going to be using a LOT of tapes, then a DAT drive may
| be cheaper in the long run because of the media costs. But...
|
| That being said, I recently picked up a Conner (now Seagate) TapeStor TSM4000R
| SCSI QIC MiniCart drive for less than half the price of a DAT. It holds 2G
| native on a QIC-3080XLF QIC Wide tape. I bought it primarily for my Win95
| system but I do have FreeBSD installed for testing.

I can confirm that the 4000 works fine under FreeBSD. The only thing I don't
like about it is the cost of the tapes.


 
 
 

Tape drive for 'dump' backup

Post by J Wuns » Sun, 14 Jul 1996 04:00:00



>  Under Win95 I did a full backup (with compression) and got
> about 38MB/sec with 1G of data.

That would be stunning, assuming the SCSI bus runs at 10 MHz and
is 8 bit wide (=> 8 MB/s). ;-)

--
cheers, J"org


Never trust an operating system you don't have sources for. ;-)

 
 
 

Tape drive for 'dump' backup

Post by Matthew Whit » Sun, 14 Jul 1996 04:00:00


You can also get an Exabyte drive used for cheap.  These are simple
SCSI-1 devices that are built slightly tougher than your average brick.
One $5 tape holds 2.3GB.  I've seen 8200s used on the net for $250-$300.

-Matt


> If you are going to be using a LOT of tapes, then a DAT drive may
> be cheaper in the long run because of the media costs. But...

> That being said, I recently picked up a Conner (now Seagate) TapeStor TSM4000R
> SCSI QIC MiniCart drive for less than half the price of a DAT. It holds 2G
> native on a QIC-3080XLF QIC Wide tape. I bought it primarily for my Win95
> system but I do have FreeBSD installed for testing. I did a quick tar and it
> seemed to work fine. Under Win95 I did a full backup (with compression) and got
> about 38MB/sec with 1G of data.

> Dave

 
 
 

Tape drive for 'dump' backup

Post by David Fi » Tue, 16 Jul 1996 04:00:00



Quote:

>That would be stunning, assuming the SCSI bus runs at 10 MHz and
>is 8 bit wide (=> 8 MB/s). ;-)

Oops... The mind thinks 38MB/minute but the fingers type 38M/sec.

Oh well...

 
 
 

1. When I run 'dump' to backup data to tape, I met errors

My linux server connect one SCSI LTO-1 tape machine. The tape's capacity is
100G/200G, so I wanna compress data so that one tape can store more.
# dump 0fz /dev/nst0 /dev/sda3

  DUMP: Date of this level 0 dump: Mon Dec 12 16:07:28 2005
  DUMP: Dumping /dev/sda3 (/ ) to /dev/nst0
  DUMP: Added inode 8 to exclude list (journal inode)
  DUMP: Added inode 7 to exclude list (resize inode)
  DUMP: Label: /
  DUMP: Compressing output at compression level 2 (zlib)
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 12065202 tape blocks.
  DUMP: Volume 1 started with block 1 at: Mon Dec 12 16:07:28 2005
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping (Pass IV) [regular files]
  DUMP: 1.80% done at 725 kB/s, finished in 4:32
  DUMP: 3.61% done at 725 kB/s, finished in 4:27
  DUMP: write error 631260 blocks into volume 1: Input/output error
  DUMP: Do you want to rewrite this volume?: ("yes" or "no")

I don't know why I always get such errors, even I use another compress
option 'j', which command is 'dump 0fj /dev/nst0 /dev/sda3. Who has met such
alike errors and help me or give me some advice? Thanks for your help!

Have a good day!

Best Regards,

Harryzhu

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