Thanks...(comments inline)
On Wed, Jun 27, 2001 at 08:43:16AM -0400, Jonathan Dill wrote:
> Tom Strickland wrote:
> > We're on the verge of ordering a DDS drive (this week). It'll probably
> > be an HP Surestore - but the question is DDS3 or DDS4? There's the
> > obvious difference in capacity, but beyond that are there any other
> > differences? Speed is an obvious one - any others?
>
> Keep in mind that amanda can't "span" individual backups across multiple
> tapes and think about your requirements. If you buy a new disk today,
> 18 GB is probably the smallest size that you will find easily available,
> and that number keeps going up. I work in an academic research lab
> where now some people are getting 75 GB and 180 GB disk drives, and with
> new instruments the data sets are increasing in size rapidly. Even the
> DDS4 isn't big enough anymore, so I'm having to look into getting a
> tapedrive with higher capacity (or using GNUTAR to split up dumps, or
> partitioning the drives into smaller chunks, both of which are kind of
> messy solutions). If things are different in whatever business you are
> in, maybe the DDS3 would be adequate, but it's something to think about.
The trouble is that the drive is for a charity. They are becoming more
and more server-centric so it becomes increasingly important that we
get some kind of off-site backup system in. Our problem is money. I
suppose that I may be able to sell the difference in price. HOWEVER -
my question was: does anyone know any differences between the two
drives OTHER THAN size/speed? For instance, I know that some older
models (not DDS3 or DDS4) don't perform read-after-write checking. I
was wondering if there is any difference other than size/speed that
would make me dump DDS3 in favour of DDS4.
Thanks,
Tom
