And worse yet, you have to run them to the end and then rewind them if
you are going to keep the data for long [the magnetic fields affect
layers near them]. An array of RAID1 disks, which sleep deeply [off]
between uses would probably be affordable, and last MUCH longer.
Just my 2 cents worth-
> Not sure if it is important to many people, but tapes take a lot less
> electricity than online disks.
do you really care? an active disk is about 15W, inactive 5W
and asleep nearly zero. even assuming idle-but-spinning,
I make that as about $2/year.
tapes are wonderful in every way except o
ECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Michael Tokarev
Sent: Wednesday, February 23, 2005 1:29 PM
To: linux-raid@vger.kernel.org
Subject: Re: [OT] best tape backup system?
Guy wrote:
> I know a thing or 2 about SCSI. I know I had it correct. 1 config was
all
> wide LVD (2940U2W). My
Guy wrote:
I know a thing or 2 about SCSI. I know I had it correct. 1 config was all
wide LVD (2940U2W). My card has a LVD and a SE port on the same logical
SCSI bus.
I was surprized once when I noticied such "logical SCSI bus" really isn't
"logical" per se. I mean, if I plug ANY device into th
: [OT] best tape backup system?
Guy wrote:
> I have NOT been able to share a SCSI cable/card with disks and a tape
drive.
> Tried for days. I would get disk errors, or timeouts. I corrected the
> problem by putting the tape drive on a dedicated SCSI bus/card. I don't
> recall t
hi ya
On Tue, 22 Feb 2005, Jon Lewis wrote:
> I should clarify, that's 80GB per tape...so 800GB native assumes you have
> 10 tapes in the unit.
yup...seen those puppies too ... too much headache for me
> > i keep wondering why people pay $150K for 1TB brandname tape subsystems ..
>
> I would
Not sure if it is important to many people, but tapes take a lot less
electricity than online disks.
--David Dougall
On Tue, 22 Feb 2005, Jon Lewis wrote:
> On Tue, 22 Feb 2005, Alvin Oga wrote:
>
> > > Better depends on what you want/need/can afford. Last time I was tape
> > > shopping, I thou
On Tue, 22 Feb 2005, Alvin Oga wrote:
> > Better depends on what you want/need/can afford. Last time I was tape
> > shopping, I thought this would be a good compromise on the need/can
> > afford:
> > Exabyte VXA-2 Packetloader 1x10
> >
> > Native tape capacity is 800gb. The only downside is, no
On Tue, 22 Feb 2005, Jon Lewis wrote:
> On Tue, 22 Feb 2005, Louis-David Mitterrand wrote:
>
> > I am considering getting a Sony SAIT 3 with 500G/1TB tapes, which seems
> > like a nice solution for backuping a whole server on a single tape.
> >
> > Has anyone used that hardware and can comment
On Tue, 22 Feb 2005, Louis-David Mitterrand wrote:
> I am considering getting a Sony SAIT 3 with 500G/1TB tapes, which seems
> like a nice solution for backuping a whole server on a single tape.
>
> Has anyone used that hardware and can comment on its performance,
> linux-compatibility or otherwis
Guy wrote:
I have NOT been able to share a SCSI cable/card with disks and a tape drive.
Tried for days. I would get disk errors, or timeouts. I corrected the
problem by putting the tape drive on a dedicated SCSI bus/card. I don't
recall the details of the failures, since it has been well over a
t: Tuesday, February 22, 2005 12:40 PM
To: Guy
Cc: linux-raid@vger.kernel.org
Subject: RE: [OT] best tape backup system?
On Tue, 22 Feb 2005, Guy wrote:
> I have NOT been able to share a SCSI cable/card with disks and a tape
> drive. Tried for days. I would get disk errors, or timeouts. I
> co
On Tue, 22 Feb 2005, Guy wrote:
> I have NOT been able to share a SCSI cable/card with disks and a tape
> drive. Tried for days. I would get disk errors, or timeouts. I
> corrected the problem by putting the tape drive on a dedicated SCSI
> bus/card. I don't recall the details of the failures,
best tape backup system?
On Tue, 22 Feb 2005, Louis-David Mitterrand wrote:
> I am considering getting a Sony SAIT 3 with 500G/1TB tapes, which seems
> like a nice solution for backuping a whole server on a single tape.
I've been using DLT tapes for many years now, prior to that DAT ta
On Tue, 22 Feb 2005, Louis-David Mitterrand wrote:
> I am considering getting a Sony SAIT 3 with 500G/1TB tapes, which seems
> like a nice solution for backuping a whole server on a single tape.
I've been using DLT tapes for many years now, prior to that DAT tapes and
Exabytes before that... Capa
On Tue, 22 Feb 2005, Louis-David Mitterrand wrote:
> Is there a better solution out there?
We using an "59P6744 200/400GB LTO Full-High Tape Drive" with great
resuslt. It made a full 180G backup within 100 minutes. We are using the
"tob" script for full and differential backups.
Bye,
-=Lajbi=---
Hello and sorry for the OT post, but I felt linux raid administrators
can be also very knowledgable about best-of-breed tape backup systems
for their linux servers.
I admin serveral linux servers with software root raid1/5 and am very
happy about their performance and reliability. Up to now our ba
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