12 Nov
2005
12 Nov
'05
6:01 p.m.
9000 VAX wrote:
On 11/8/05, Tim Shoppa <tshoppa at wmata.com>
wrote:
>>From a post I made to the PDP-11 newsgroups in the previous millenium: ...
>Here are the peak data rates measured for read and write 64 blocks-at-a-time:
>
> Read Write
> ---------- ----------
>Andromeda SCDC 2.298 MB/s 1.131 MB/s
>CMD CQD440 2.397 MB/s 1.525 MB/s
>CMD CQD220 1.418 MB/s 0.882 MB/s
>CMD CQD220A 2.088 MB/s 1.409 MB/s
>DEC RQZX1 1.379 MB/s 1.097 MB/s
>Viking QDT 0.846 MB/s 0.704 MB/s
>DEC RQDX3 0.164 MB/s 0.161 MB/s
>
>
And for yucks on a UNIBUS 11/44 running 2.11BSD dd bs=16384 count=1000:
>EMULEX UC-18 0.585 MB/s not tested
target is ST32550N
> 0.245 MB/s not tested targer is RRD43 CDROM
>
>