I don't believe LTO1 drive can read LTO3 tape, but LTO3 drive can
read, not write LTO1 tape.

On 5/6/05, goc <goran.k AT vip DOT hr> wrote:
> hi all, i'll first explain the situation and then tell you what we want do ,
> i appreciate every
> reply and help you offer
> 
> TSM 5.2.4.0 on pSeries 640
> 2x8 port switch
> LTO library L32 with 12 LTO1 drives
> (and the same configuration on DR site)
> 
> as we approached the capacity of this one LTO library we have now choice
> to upgrade the whole thing
> 
> option 1. the simplest
> - add D52 (driveless) frame filled with 400 LTO1 tapes
> 
> option 2. my proposition
> - replace 9 LTO1 drives with 9 LTO3 drives + additional D52 frame filled
> with LTO3 cartridges
> 
> why 9 ? well i thought because we have a lot of archive data on LTO1 tapes
> and considering the long expiration policies i think some day the LTO1 tapes
> will get used to delete the stuff
> 
> i'm not sure but think that LTO3 drive cannot write LTO1 tapes am i right ?
> i cant find on ibm site the interoperability matrix for LTO(drives/tapes)
> ,can someone point ? thanks
> 
> so if LTO3 drive can read from LTO1 tape , can LTO1 drive read LTO3 tape ?
> (of course with LTO1 drive native speed)
> (this is acceptable)
> 
> furthermore , one idea (not mine) was to install LTO3 drives and tapes and
> migrate the whole thing to LTO3 tapes,
> but what then with all the "empty" LTO1 tapes and 3 LTO1 drives ? :-)
> 
> boy ! i'm really confused and my chiefs want some solution proposition
> one of them wants to stay in-line with new technologies and one is
> for the simplest solution ... me ? i'm for new technology but i really in
> this
> moment don't know how it will look like and how the whole thing should
> be done, and what and how is the smartest way to do this thing.
> 
> thats's pretty much it, i will surely find some other question as time goes
> by
> and i'll ask them here coz this community is my only reference for questions
> like this, coz i know from experience ibm sales personel is really confused
> when we talk to them about our needs, and for tech guys from ibm they
> got itchy all over when i call them on the phone ;-) LOL
> 
> nevermind ...
> thanks for every letter you will write in reply
> 
> ------------------------------------------------------------------------------------
> goran konjich
> senior unix administrator
> vipnet
>