I remember DRUM storage, just never worked with it, the only other DRUM storage I saw was at a tour at a data center somewhere in Jersey, my BIL worked there, did some work with NYSE I believe, and they were mostly all Univac or PDP systems and I saw what I think was a solid state drum storage unit, at 19 or 20 I was quite impressed.
Carmen Vitullo ----- Original Message ----- From: "John McKown" <[email protected]> To: [email protected] Sent: Wednesday, December 20, 2017 7:08:40 AM Subject: Can anyone remember "drum" storage? It's not really a drum, but it is getting closer. Of course, for true speed, one should go SSD. http://www.theregister.co.uk/2017/12/19/seagate_disk_drive_multi_actuator/ [quote] Seagate is increasing IO performance in disk drives by separating read-write heads into two separate sets which can operate independently and in parallel. The heads are positioned at one end of actuator arms which rotate around a post at their other end to move the heads across the platter surfaces. Thus, with an eight-platter drive, each read-write head is positioned above the same cylindrical track on each platter and reads or writes to and from the same disk blocks on each platter's surface. [\quote] -- I have a theory that it's impossible to prove anything, but I can't prove it. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
