Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!purdue!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-pcd!hpvcfs1!stevem From: stevem@hpvcfs1.HP.COM (Steve Miller) Newsgroups: comp.sys.mac.hardware Subject: Re: Quantum 105 drives (again) Message-ID: <19640003@hpvcfs1.HP.COM> Date: 15 Nov 89 22:10:36 GMT References: <4050@ur-cc.UUCP> Organization: Hewlett Packard, Vancouver, WA Lines: 14 The Quantum 105 as well as the entire Pro-Drive series from Quantum have a raw seek time averaging 19 ms. However, they have a built in caching scheme which lowers the average seek time. The actual average seek time is being advertised by Quantum's marketing department as 12 ms, although I talked to an engineer at Quantum who says that the actual number is not well understood because it is highly dependent on actual usage. The size of the cache is either 16K or 64K, I can't remember which. Steven Miller Vancouver Division Hewlett Packard