Anne & Lynn Wheeler wrote:
that should be 3310 & 3370s ... 3330, 3340, 3350 were all ckd. 3340s were removable packs that were totally enclosed including the arm access mechanism. There was 3375 which basically was (hardware) emulation of CKD on 3370 device.
I worked at a service bureau in the seventies that ran, in addition to a 360/65 (later two 165s), some Digital Equipment machines. I was fascinated to note that their DASD consisted of 3330s, individually mounted, with build in controllers to make them behave like FBA drives. They were formatted to a fixed block size of 512, which wasted most of the capacity.
Gerhard Postpischil Bradford, VT new e-mail address: gerhardp (at) charter (dot) net ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
