Hello everyone,
I have had somemore information provided me by Steve Campos.
He says that on one Sun4/330 the format.dat entry for the
wren 8 would cause a panic reboot during newfs.
>Here is the entry (along with some stats) :
>
>disk_type = "Highland SEAGATE Wren 8 ST41650N" \
> : ctlr = MD21 : fmt_time = 5 \
> : cache = 0x11 : trks_zone = 15 : asect = 5 : atrks = 30 \
> : ncyl = 1770 : acyl = 2 : pcyl = 1772 : nhead = 15 : nsect = 104 \
> : rpm = 3600 : bpt = 54900
He has supplied me with a new one that according to him
will work on all Sun4 systems. The one shown previously
worked for me until I tried a restore on a particular partition.
panic reboot with lots of fatal write errors before. Here is the
entry ( as yet untested by me - RSN ).
disk_type = "Highland SEAGATE Wren 8 a ST41650N" \
: ctlr = MD21 : fmt_time = 5 \
: cache = 0x11 : trks_zone = 15 : asect = 5 : atrks = 30 \
: ncyl = 2116 : acyl = 2 : pcyl = 2118 : nhead = 15 : nsect = 87 \
: rpm = 3600 : bpt = 54900
While I have your attention...
This is more of an inquiry than an emergency. I would like some
information on the ramifications of using the "-m free-space%"
option to newfs. When using 1.2G disks now days, 10% comes out
to an awfully large number. Is there any thing that one should
take note of when using 1 or 2 per-cent? How does it affect
performance? Is it best to leave well enough alone?
Are there any good tutorials in netland about tunefs, mkfs, etc...?
I gather that most of the answers will be subjective, but I
will do my best to provide a worthwhile summary, but it may
take a while.
Thanks for your time.
Nicky.
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Nick Ayoub nicky@davinci.concordia.ca UNIX Systems Analyst
Dept. of E&CE Concordia University CAD Systems Support
Montreal QC. H3G 1M8 Voice : (514) 848-3107
Canada Fax : (514) 848-2802
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