Hmmm, the '80s called looking for their technology! :-) 3380s that is. Which was back in the 80s. 2 actuators with each running heads on half of the platters. Next thing is they'll invent an idea of putting 2 heads on each arm to be able to read/write twice as much data with each revolution of the disk. Oh wait, the 3380s had that too!
Rex -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of John McKown Sent: Thursday, March 22, 2018 7:07 AM To: [email protected] Subject: [External] Didn't we have this some time ago on some SLED disks? Multi-actuator https://www.theregister.co.uk/2017/12/19/seagate_disk_drive_multi_actuator/ Basically splits the disk into two parts: upper & lower. Each part has the heads which reference it on separate actuators so the they can be on different cylinders. -- 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 The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
