RL02's spin at 2400RPM. RK05's spin at 1800RPM IIRC. Thus the transfer
time for data is a bit faster on the RL series drives.

RL's also do spiral writes/reads on sectors IIRC. I don't however recall
if they can do overlapped seeks, although I *think* they can.

Chrisz


Johnny Billquist wrote:

> On Fri, 5 Mar 2004, Christopher Zach wrote:
>
>
>>*nod* RL02's will run pretty much forever without a lot of TLC as well.

>
>
> I have had more problems with RL02 than RK05 drives, but to be honest,
> it's still extremely little. I've had one drive belt on an RL02 break.
>
>
>>They also spin faster than RK05's, and are thus a bit quicker on the
>>latency.

>
>
> Huh? Not in my experience. The RK05 spins up very fast. The RL02 is okay,
> but slower.
>
>
>>For a long time I ran my pdp11 (11/23+, 2 RL02's, 1 RX01) as an attached
>>Decnet routing node to the local univeristy. It was really neat to sit
>>at home and copy files back and forth from the big Vaxes. And when I
>>needed serious storage I would fire up the 11/34a with the pair of RM02's.

>
>
> Is this the time I should make a plug for HECNET? :-)
>
>
>>Nowadays one can build an 11/73 with 4mb memory and 600mb of disk
>>without batting an eyelash.

>
>
> Yup. :-)
>
> Johnny
>
> Johnny Billquist || "I'm on a bus
> || on a psychedelic trip
> email: bqt@update.uu.se || Reading murder books
> pdp is alive! || tryin' to stay hip" - B. Idol
>

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