hurf@theory.tn.cornell.edu (Hurf Sheldon) (09/11/90)
We have an HP 650/A drive to try while our 20GB disk farms are delayed - what disktab entry or options to mkfs are appropriate? Any further info would be a help as we not only want to use it (on our 345) as a native disk but need to know if we can read the same media written on an AlpaTronix PC Optical disc under DOS. Our system is a 345, HP-UX 7.0 - the media says hp92280A on it. -1024 bytes/sector. How many sectors? Do I use the same major/minor numbers as the SCSI disks (330's)? Q: DOes the 20GB farm use the same format as the 650/A? Thanks in advance Hurf Sheldon -- Hurf Sheldon Network: hurf@wisdom.graphics.cornell.edu Lab of Plasma Studies Bitnet: hurf@CRNLION 120 Rand Hall, Cornell University, Ithaca, N.Y. 14853 ph:607 255 6713
rjn@hpfcso.HP.COM (Bob Niland) (09/11/90)
re: hurf@theory.tn.cornell.edu (Hurf Sheldon)... > We have an HP 650/A drive to try while our 20GB > disk farms are delayed - what disktab entry or > options to mkfs are appropriate? ############################################### # The HP Series 6300 model 650/A is a Magneto-optical # drive with 2 surfaces and uses the SCSI interface. # The mechanism can only access one surface at a time. # The media is removeable (5.25"), with an estimated # shelf life of 10 years. Media has a write-protect tab. # Total formatted capacity: 322.1 MBytes / surface; 644.2 MBytes total # Physical Geometry: # Bytes / sector 1024 # Sectors / track 17 # Cylinders 18504+ hpS6300.650A|hpS6300.650A_noswap|HPS6300.650A_noswap:\ :No swap:ns#17:nt#12:nc#1542:\ :s0#314568:b0#8192:f0#1024:\ :se#1024:rm#2400: ##################################################### # It is not recommended to use the 650/A drive as the # root device. For convenience an entry is provided # in case the user requires it for special situations. hpS6300.650A_32MB:\ :32 MBytes swap:ns#17:nt#12:nc#1381:\ :s0#281724:b0#8192:f0#1024:\ :se#1024:rm#2400: > Any further info would be a help as we not only > want to use it (on our 345) as a native disk but > need to know if we can read the same media written on an > AlpaTronix PC Optical disc under DOS. Can't help you there. If the Alpa is not "Continuous Composite", forget it. > Q: DOes the 20GB farm use the same format as the > 650/A? Yes. Regards, Hewlett-Packard Bob Niland Internet: rjn@hpfcrjn.FC.HP.COM 3404 East Harmony Road UUCP: [hplabs|hpfcse]!hpfcrjn!rjn Ft Collins CO 80525-9599
toddg@hpldola.HP.COM (Todd Goin) (09/11/90)
/hurf@theory.tn.cornell.edu (Hurf Sheldon) / 2:35 pm Sep 10, 1990 / > > We have an HP 650/A drive to try while our 20GB > disk farms are delayed - what disktab entry or > options to mkfs are appropriate? I use newfs /dev/rdsk/mo hpS6300.650A_noswap (Don't forget you have to newfs both sides) > Any further info would be a help as we not only > want to use it (on our 345) as a native disk but > need to know if we can read the same media written on an > AlpaTronix PC Optical disc under DOS. Can't answer this one. > Our system is a 345, HP-UX 7.0 - the media says > hp92280A on it. -1024 bytes/sector. > How many sectors? Info from the /etc/disktab file: ############################################### # The HP Series 6300 model 650/A is a Magneto-optical # drive with 2 surfaces and uses the SCSI interface. # The mechanism can only access one surface at a time. # The media is removeable (5.25"), with an estimated # minimum shelf life of 10 years. Media has a write-protect tab. # Total formatted capacity: 322.1 MBytes / surface; 644.2 MBytes total # Physical Geometry: # Bytes / sector 1024 # Sectors / track 17 # Cylinders 18504+ > Do I use the same major/minor numbers as the > SCSI disks (330's)? ll /dev/dsk/mo yeilds: brw-r----- 1 root sys 7 0x0f0000 Jun 8 07:55 /dev/dsk/mo > > Q: DOes the 20GB farm use the same format as the > 650/A? I hope so, but cannot answer for sure. > Thanks in advance > Hurf Sheldon > > Hurf Sheldon Network: hurf@wisdom.graphics.cornell.edu > Lab of Plasma Studies Bitnet: hurf@CRNLION > 120 Rand Hall, Cornell University, Ithaca, N.Y. 14853 ph:607 255 6713 >