loving@lanai.cs.ucla.edu (10/25/88)
Anybody got the dynamic configuration parameters for a seagate ST225 handy? This is the #'s you use when ya go into debug and jump into the ROM code on the controller card. Things like starting reduced write current cylinder . . . stuff like that. loving@lanai.cs.ucla.edu
kcl@hpcvlx.HP.COM (Ken C. Lo) (10/27/88)
The following are the parameters for ST-225 drive:
Total # of cylinders = 615
Total # of heads = 4
Reduced write current = 450
Write precompensation = 450
Maximum correctable error burst length = 11
Command control block option byte = 5steed@techunix.BITNET (Ze'ev "Steed" Shtadler) (10/31/88)
In article <17148@shemp.CS.UCLA.EDU> loving@lanai.cs.ucla.edu writes: >Anybody got the dynamic configuration parameters for a seagate ST225 handy? >This is the #'s you use when ya go into debug and jump into the ROM code >on the controller card. Things like starting reduced write current cylinder >. . . stuff like that. > >loving@lanai.cs.ucla.edu In article <101000016@hpcvlx.HP.COM> kcl@hpcvlx.BITNET answers: > > The following are the parameters for ST-225 drive: > Total # of cylinders = 615 > Total # of heads = 4 > Reduced write current = 450 > Write precompensation = 450 > Maximum correctable error burst length = 11 > Command control block option byte = 5 His answer is not consistent with the data I have, so I let you netlanders choose ... Taken from "Universal Installation Handbook" (not for resale) by Seagate: Product information ST225 -------------------------------------------------- Formatted Capacity (MegaBytes): 21 Read/Write Heads: 4 Data Cylinders: 615 Step Pulse Range (MicroSec.): 5-200 Access Time (MiliSec.): 65 Write Precompensation (Cyl.): 300-614 Reduced Write Current (Cyl.): N/A Power (Watts): 14.8 In section 5: "Drive Formatting" you find the following: [When asked by the formatting program about] ... 5. Maximum correctable error burst (EEC) - see the default setting or 8 for most systems. Hope it helps, Ze'ev. -- Ze'ev Shtadler. Computer Science Faculty, Technion, Israel Institute of Technology, Haifa Israel Phone (work): (+972) 4-294304 BITNET: steed@techunix Domain: steed@techunix.technion.ac.il UUCP: ...!psuvax1!techunix.bitnet!steed ARPANET: steed%techunix.bitnet@cunyvm.cuny.edu CSNET: steed%techunix.bitnet@csnet-relay.csnet