Re: Backup media

At 1/14/99 03:15 PM , David Williams wrote: >In article <77jjvp$qlo$1@news.xmission.com>, Susik Lee <slee@gus.net> >writes >> >>Before you selecting tape drive or library, you might want to determine how >>fast do you need to backup your database. DLT4000 will give you 2MB/sec > ?? I have seen a DLT 4000 do 50Mb in 14 seconds which is more than > 2Mb/sec!! Sorry, all the transfer rate is in native mode. DLT4000 will give you 4MB/sec in compressed mode, thus you should get 50MB in 14 seconds. BTW: DLT7000 will give you 10MB/s and storage of 70GB in compressed mode. AIT will give you 1:2.5 compression rate, thus you will get 7MB/s and 90GB of storage in compressed mode. > >>and DLT7000 will give you 5MB/sec of transfer rate. Problem with DLT is >>that it is old technology like 4mm and 8mm. They are coming out with super >>DLT, which will give you 7MB/sec (i think) of transfer rate. But, super >>DLT and DLT is not compatible. Thus, you can not read tape that was >>written by super DLT in DLT drive. Also, you might want to look into AIT >>drive which give you 3MB/sec and storage of 35GB. But AIT 2 is coming or >>should be out already, which will give you 6MB/sec and storage of 50GB per >>tape. Also Sony makes DTF, which give you 12MB/sec with storage of 42GB >>per tape. DTF-2, which should be out this summary ( i think), should give >>you 24MB/sec and storage of 84GB. If you have data warehouse and don't >>want to spend too much money, you might want to look into AIT 2 drive. >> >>Hope this helps. >> >>Susik >>slee@gus.net >> >-- >David Williams ======================== Susik Lee slee@gus.net ========================