I recently asked for info about the Seagate ST43400N disk drive.
here are the answers to my 3 questions:
> 1) Anybody ever had any problems with this drive, or is it a "good bet"?
Nobody had a bad word to say, many people liked the drive, and considered
it to be reliable and to have good performance. Its "other" name
is an Elite-3.
> 2) As long as I keep individual partitions below 2Gb in size, should
> I be okay under 4.1.3?
Yes was the common concencious [I wish OW had an integrated spell-checker!]
Some people recommended Sun's On-Line Disk Suite if I wanted to exceed that.
> 3) Does anyone know the actual size of this drive, eg how many blocks?
> (When suppliers quote sizes, they're sometimes a bit "economical
> with the truth" )
Turns out my supplier was being _very_ economical indeed. Unformatted, the
drive is 3.4Gb (hence the 34 in ST43400N), which "sort of" rounds
to 3.5Gb. Since using an unformatted drive is a clever trick indeed,
fortatted capacity is nearer 2.9Gb
here are the various block sizes I was quoted. These will of course vary
depending on whether they included alt cyls or not, but they give a good
idea.
5,696,655
5,688,447
5,683,986
5,683,356
5,630,688
If I define 1Gb as 1,000,000 x 1024 bytes (so that output from df
is easy to convert), then these block sizes correspond to 2.81Gb - 2.85Gb
Depending on how generous I am with inodes and minfree, this could
drop by a further 15%, to approx 2.4Gb usable space.
And here's a couple of format.dat entries for good measure.
disk_type = "Seagate ST43400N Elite 3" \
: ctlr = SCSI : fmt_time = 4 : trks_zone = 21 : asect = 6 \
: atrks = 21 : ncyl = 2736 : acyl = 2 : pcyl = 2738 \
: nhead = 21 : nsect = 99 : rpm = 5400 : bpt = 49000
disk_type = "Elite III" \
: ctlr = SCSI : fmt_time = 4 \
: ncyl = 2738 : acyl = 2 : pcyl = 2740 : nhead = 21 : nsect = 99 \
: rpm = 5400 : bpt = 55468
Other handy hints:
dannyd@mel4360.miden.com.au (Zdenek Dospisil \(AARM1A\)):
> These drives are ELITE not Wren drives , is not big deal , but be
> aware
> of different position of connectors. The SCSI and Power connectors are
> on the top of back of driver ( not on the bottom as SEAGATE). Check
> your box for this as well length of SCSI cable - they can't be mounted
> upside down . The size of disk is ~2.7GB formatted.~
> Note: the ST43400ND has differential SCSI, whereas
> the ST43400N is the fast SCSI-2; most of the ones we have are ND.
> The only difference is you need a differential controller for the ND
> drives (like Sun's X1052A - SBUS Fast Differential SCSI buffered
> Ethernet controller)
Fanx 2:
jaa101@deakin.anu.edu.au (James Ashton)
David Warren <warren@atmos.washington.edu>
dannyd@mel4360.miden.com.au (Zdenek Dospisil \(AARM1A\))
szh@zcon.com (Syed Zaeem Hosain)
James Pearson <jcpearso@ps.ucl.ac.uk>
epolgar@icon.hu (Endre Polgar)
shandelm@jpmorgan.com (Joel Shandelman FIMS Information Systems - 212-648-4480)
bobr@houston.wireline.SLB.COM ( Bob Reardon )
nrd@lenti.med.umn.edu
johnb@blas.cis.mcmaster.ca (John Benjamins)
patp@juliet.ll.mit.edu ( Patrick Pawlak )
Con Nakos <cbn@mrd.dsto.gov.au>
jgarb@erim.org (Joe Garbarino)
sozoa@atmel.com (Steve Ozoa)
tlk@micom.com (Todd L. Kindig)
susan%apunix@UCSD.EDU (Susan Fenley)
Doug Neuhauser <doug@perry.berkeley.edu>
vasey@issi.com
ept@ornl.gov ( E P Tinnel)
Mark.Davis@Eng.Sun.COM (Mark Davis)
glenn@uniq.com.au (Glenn Satchell - Uniq Professional Services)
Phill St-Louis <phill2@hivnet.ubc.ca>
Joseph Kwan <rabbit@pacesetter.com>
Dave.
* David Mitchell, Systems Administrator, email: D.Mitchell@dcs.shef.ac.uk
* Dept. Computer Science, Sheffield Uni. phone: +44 742-825573
* 211 Portobello St, Sheffield S1 4DP, UK. fax: +44 742-780972
*
* Standards (n). Battle insignia or tribal totems
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