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#1 (**permalink**) 01-17-2008, 06:18 AM

rsync .. either to a winblows machine , another linux box on the network
or an extra hard drive installed for the specific purpose of a mirror..
very very cheap and the scripts are easy.... google for them... only
possible problem is the cpu can take a short term maxing...
Have fun

Sotiris Tsaftaris wrote:

> Hello all I am looking into purchasing a tape backup drive for our
> server.
>
> The server is a Intel Xeon server running Redhat linux 8.0
> We have a 200GB HD which is mirrored on another 200GB.
>
> To be safe we want to buy a backup solution for our setup.
>
> Our requirements are:
>
> Atleast 80 GB capacity
> Linux compatibility
> Reliability
> Price
>
> After a bit of searching it boiled down to:
>
> 1] Exabyte VXA-2. VXA-2 Technology, 80GB/160GB
> (compressed/uncompressed), tranfer rate 6MB/s, price ~$1000, media
> price ~$100.
>
> 2] Quantum DLT vs160. DLT (?) Technology, 80GB/160GB
> (compressed/uncompressed), tranfer rate 8MB/s, price ~$1800, media
> price ~$70.
>
> 3] Quantum DLT 8000. DLT Technology, 40GB/80GB
> (compressed/uncompressed), tranfer rate 6MB/s, price ~$2000, media
> price ~$70.
>
> I am only inlcuding the 3rd because it was in a similar price range
> although very high for the offerred capacity.
>
> I am very confused how similar capacities can have such a big price
> differences?
>
> I know that VXA-2 uses a helical tape path compared to the linear mode
> that the others use. I got the impression that this is a known debate
> in the storage area.
>
> It also seems to me that the vs160 does not use standard DLT tapes. Is
> that true?
>
> DLT media has been around for a while and at least from what i have
> heard, they are quite reliable. Is that true also for VXA-2 and vs160?
>
> Last, I am using dump to do the backup with our old (DDS drive) will I
> still be able to use that with any of the above?
>
> To summarize, go with the new and really cheap! VXA-2, go with quantum
> DLT vs160 for double the price, or rely on DLT 8000.
>
> Thank you all in advance for your time and attention.
>
> SotoS

--
Unix Rulez... help your mates and introduce them.

#2 (**permalink**) 01-17-2008, 06:18 AM

On Thu, 17 Jul 2003 22:12:49 GMT, atec77 wrote:
> rsync .. either to a winblows machine , another linux box on the network
> or an extra hard drive installed for the specific purpose of a mirror..
> very very cheap and the scripts are easy.... google for them... only

Ha, ha, ha, . . . You may want to read http://taobackup.com/ click the
yin/yang icon arrow.

#3 (**permalink**) 01-17-2008, 06:18 AM

just to get you started with another back up h.d
#!/bin/sh

export
PATH=/usr/local/bin:/usr/bin:/bin

LIST="rootfs usr data data2"

for d in $LIST; do
mount /backup/$d
rsync -ax --exclude fstab
--delete /$d/ /backup/$d/
umount /backup/$d
done

DAY=`date "+%A"`

rsync -a --delete
/usr/local/apache /data2/backups/$DAY
rsync -a --delete /data/solid
/data2/backups/$DAY

atec77 wrote:

> rsync .. either to a winblows machine , another linux box on the network
> or an extra hard drive installed for the specific purpose of a mirror..
> very very cheap and the scripts are easy.... google for them... only
> possible problem is the cpu can take a short term maxing...
> Have fun
>
> Sotiris Tsaftaris wrote:
>
> > Hello all I am looking into purchasing a tape backup drive for our
> > server.
> >
> > The server is a Intel Xeon server running Redhat linux 8.0
> > We have a 200GB HD which is mirrored on another 200GB.
> >
> > To be safe we want to buy a backup solution for our setup.
> >
> > Our requirements are:
> >
> > Atleast 80 GB capacity
> > Linux compatibility
> > Reliability
> > Price
> >
> > After a bit of searching it boiled down to:
> >
> > 1] Exabyte VXA-2. VXA-2 Technology, 80GB/160GB
> > (compressed/uncompressed), tranfer rate 6MB/s, price ~$1000, media
> > price ~$100.
> >
> > 2] Quantum DLT vs160. DLT (?) Technology, 80GB/160GB
> > (compressed/uncompressed), tranfer rate 8MB/s, price ~$1800, media
> > price ~$70.
> >
> > 3] Quantum DLT 8000. DLT Technology, 40GB/80GB
> > (compressed/uncompressed), tranfer rate 6MB/s, price ~$2000, media
> > price ~$70.
> >
> > I am only inlcuding the 3rd because it was in a similar price range
> > although very high for the offerred capacity.
> >
> > I am very confused how similar capacities can have such a big price
> > differences?
> >
> > I know that VXA-2 uses a helical tape path compared to the linear mode
> > that the others use. I got the impression that this is a known debate
> > in the storage area.
> >
> > It also seems to me that the vs160 does not use standard DLT tapes. Is
> > that true?
> >
> > DLT media has been around for a while and at least from what i have
> > heard, they are quite reliable. Is that true also for VXA-2 and vs160?
> >
> > Last, I am using dump to do the backup with our old (DDS drive) will I
> > still be able to use that with any of the above?
> >
> > To summarize, go with the new and really cheap! VXA-2, go with quantum
> > DLT vs160 for double the price, or rely on DLT 8000.
> >
> > Thank you all in advance for your time and attention.
> >
> > SotoS
>
> --
> Unix Rulez... help your mates and introduce them.

--
Unix Rulez... help your mates and introduce them.

#4 (**permalink**) 01-17-2008, 06:18 AM

On Thu, 17 Jul 2003 23:11:24 GMT, atec77 wrote:
> don't see your point... it works for my purpose.... and is an honest and
> simple idea..

Yes it is a simple idea.
You indicated rsync, I guess you did not read the section 4. History

> next your going to tell me knowledge should be guarded as its power

No, I was trying to show you why rsync was not a good solution.

>> Ha, ha, ha, . . . You may want to read http://taobackup.com/ click the
>> yin/yang icon arrow.

#5 (**permalink**) 01-17-2008, 06:18 AM

what ever.. Ive only used it on a couple of e-smith servers... its
working well and having the full drive mirror is ok in this case.. so
apart from an expensive tape unit .. what do you suggest ?. personally I
favor Beowulf clusters... (but not always viable)

Bit Twister wrote:
>
> On Thu, 17 Jul 2003 23:11:24 GMT, atec77 wrote:
> > don't see your point... it works for my purpose.... and is an honest and
> > simple idea..
>
> Yes it is a simple idea.
> You indicated rsync, I guess you did not read the section 4. History
>
> > next your going to tell me knowledge should be guarded as its power
>
> No, I was trying to show you why rsync was not a good solution.
>
> >> Ha, ha, ha, . . . You may want to read http://taobackup.com/ click the
> >> yin/yang icon arrow.

--
Unix Rules... help your mates and introduce them.

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Re: Backup solution for Redhat 8.0 Server: Exabyte VXA-2 vs. DLT vs160vs. DLT8000