SCSI Technical Question

[Pardus]

Using a seagate dds-3, 4mm dat drive to do my backups with a adaptec 2940uw scsi card to tape on a daily basis. I'm backing up my data on a celeron 566 system and the fastest backup time i can get is 52mb/min. Accoriding to seagate, this drive can do nearly 3x that speed.

Is the bottleneck my system or the scsi card. My question is basically, if i upgrade the system to a p4, will that make any differeence or do i need a higher end scsi card.

I realize no one uses scsi much these days, but this tape drive has saved me more than once and is now part of me and dat is still cheaper to use than dvd backups.


thanks!

 

[LiLithTecH]

The thing to take into consideration is that it is mostly I/O.

The speed of your hard drives have a bigger influence on I/O then
the CPU.

Also, if you are backing up compressed drives or NTFS it will be slower.

Seagate states their numbers with optimal hardware.
While 52meg/min is a bit on the slow side, it is not that bad with your current CPU.

 

[zepper00]

Hi,
Are your hard drive(s) also SCSI? That would be the ideal situation as the tape and HDs can talk to each other over the SCSI bus after the process is started without needing any further interaction with the rest of the system. Are all of your SCSI drives capable of the Ultra SCSI II transfer rate (40MB/sec) like the 2940UW? If so, make sure they are all set properly in the SCSI card's setup (accessed at boot time). IOW, optimum performance of you tape drive will be with all storage on SCSI. Good luck.
.bh.

 

[Pardus]

All my hard drives are ibm 7200 ide, not scsi and yes, the os is ntfs. And no, i have no plans to purchase scsi hard drives, cant afford them, thanks for the help.