Well I got about 4 replies from this one. I was asking:
> I'm interested in the new Seagate 10 GB drives for my SparcCenter 1000
> running Solaris 2.3 ...
> I'd like to know if anyone else has any experience with these drives
> on their Solaris 2.x machine.
> Any horror stories ??
> Does anybody know the speed/data transfer rate ??
> Anybody have a format.dat entry for it ??
The two best responses I got were from Gary.Speechley@dsto.defence.gov.au
and firstname.lastname@example.org. I have attached their responses below ...
Thanks Again !!
Systems Engineer, PDC Services Inc.
----/ ___ __ __
| /\/| / \ / \ / \
|/\/ | /____/ / / /
/---- / _/___/ \___ Services, Inc
> Hi David,
> I've just been playing with the Seagate 9GB drive on one of my SS10s running
> Solaris 2.3, with great success. The format utility looks at the drive and
> determines a format entry for you, if you wish. In my case, I simply partitioned
> the drive as a single large partition, newfs'd the drive and added mount details
> to /etc/vfstab.
> Speed/data transfer rate details, according to the booklet supplied with the
> drive: Cache - multi-segmented 954 KB
> Capacity - formatted 9,090 MB
> Capacity - unformatted 10,800 MB
> Recording - cylinders 4,925
> - heads 27
> SCSI max burst transfer 10 MB/sec
> Seek time - av. read 11 msec
> - av. write 12 msec
> Disc rotation - rpm 5,400
> Average latency 5.55 msec
> Standard formatting is 512 data bytes/sector, 9 spare sectors/cylinder
> and one spare cylinder at the inner track reserved for spares.
> I simply removed the old 1.3GB Seagate drive in my Sun desktop "lunchbox" and,
> using the same mounting hardware, installed the 9GB drive. The only hitch was
> with a SCSI ID thumbwheel switch whose header pitch did not match the SCSI ID
> header pins on the drive. I simply hard-set the ID using the jumpers supplied
> and left the thumbwheel switch disconnected. So far, so good.
> From email@example.com Tue Sep 6 16:17:42 1994
> To: firstname.lastname@example.org
> Subject: Re: Seagate 10 GByte drives
> Content-Length: 905
> X-Lines: 29
> I have installed many of the Segate 10Gb disks on Sun systems as Box Hill
> Systems uses the Segate 10Gb (Unformatted) 9Gb Formatted and newfs'ed).
> The following is the format.dat entry supplied by Box Hill Systems.
> disk_type = "Box Hill Systems JDS 10.8GB" : ctlr = SCSI \
> : fmt_time = 7 : trks_zone = 27 : asect = 9 : atrks = 27 \
> : ncyl = 4979 : acyl = 2 : pcyl = 4926 : nhead = 27 \
> : nsect = 132 : rpm = 5400 : bpt = 68096
> partition = "Box Hill Systems JDS 10.8GB" \
> : disk = "Box Hill Systems JDS 10.8GB" : ctlr = SCSI \
> : a = 0, 93366 : b = 26, 215460 : c = 0, 17745156 : e = 86, 4129650 \
> : f = 1236, 4129650 : g = 2386, 4129650 : h = 3536, 3720276
> This works Well.
> Performance Info.
> Formated Cap: 9,020Gb
> RPM: 5400
> Platers: 14
> A/seek (ms): 9.0/10.0 R/W
> A/Seek Rate: 500/450 GB/s R/W
> Transfer Rate: 42-65 Mbits/s
> Burst transfer: 10 MB/s
> MTBF: 500,000 Hrs
> Data Buffer: 1,024 KB
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