gorham@ux1.cso.uiuc.edu (Gorham P. P.Miscall) (10/04/90)
Do any of you HP wizards out there know if a HP 9000/318 will support an HP 7925 disk drive? How about a HP 9000/319?
Thanks for your help!
Gorham
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Gorham P. Miscall
USENET gorham@uiucme.me.uiuc.edu University of Illinois
gorham@uiucux1.cso.uiuc.edu Mechanical Engineering
(217) 333-9044rjn@hpfcso.HP.COM (Bob Niland) (10/04/90)
re: > Do any of you HP wizards out there know if a HP 9000/318 will support > an HP 7925 disk drive? How about a HP 9000/319? The 7906/20/25 "MAC" disks were never officially "supported" on the Series 300. If you have one, it might work. The 319 would be preferrable, if it has Option 010 high-speed HP-IB. The 318 is standard-speed only. Here's an old article on the topic.... re: Using AMIGO/MAC disks on Series 300 HP-UX: In general, MAC disks are no longer worth the electricity it takes to run them, unless you are at an educational institution, where normal rational accounting rules often don't apply. If you decide to scrap the drive, be advised that the main casting is aluminum and is reportedly worth about $100 to a scrap metal dealer. _ _ _ _ _ Read the 7906M, 7920M and 7925M sections of the Series 300 Configuration Reference Manual (CRM), pub# 98561-90020 (8/85). Caution: This note was assembled on from available data and these instructions have not been tested by the author. * This note covers "AMIGO/MAC" disks 7906M/MR Option 102, 7906S, 7920M Option 102, 7920S, 7925M Option 102, and 7925S. Drives without Option 102 may or may not have the necessary 13037 controller and 12745 HP-IB card. The 16-bit parallel 79xxM disks cannot be connected to a Series 300 computer (unless converted to the Option 102 HP-IB configuration via a 12745C/D card in the 13037C/D controller). The 7906H, 7920H and 7925H "AMIGO/ICD" disks may not work properly with the HP-UX amigo driver. The driver was written to be compatible with them, but they were seldom used. The MAC controller and HP-IB adaptor may still be available from HP as remanufactured products 13037DR and 12745DR. * Set a 98625A interface to interrupt level 6. The HP-UX kernel will complain at bootup, but will configure the driver nonetheless. Set a 98262A or 98625B interface to interrupt level 4. Internal standard-speed (e.g. Model 318) or plug-in 98624A interfaces will work, slowly. Lack of 98620B DMA (Model 310/320 only) is also slow. The amigo driver actually supports MAC drives on either high or low speed HP-IBs, either with or without DMA. HOWEVER, anything other than high-speed HP-IB with DMA results in doing "buffered" read/writes, effectively resulting in one sector transferred per revolution, i.e. 10-15 Kbytes/sec, depending upon the drive. So, anything other than high-speed HP-IB with DMA is really just academic. (Why support the buffered read/writes at all? It was required for other amigo drives such as the 82901/02M floppy.) * It is not possible to "INSTALL" HP-UX on an AMIGO disk. The amigo driver is not in the install system. You must either install on a supported disk and mount the amigo disk; or install on a supported disk and transfer the complete system to the amigo disk (which gets tricky on 6.0 and later releases because of CDFs and symbolic links). * Set the FORMAT switch to * (enabled). There should be no need to set it back to format-protect after initializing, as nothing in HP-UX except a user-written DIL program should ever attempt a MAC FORMAT operation. * Set [write] PROTECT to OFF. * Set the HP-IB address on the 13037C/D MAC controller. * The 'mediainit(1)' command does not work with amigo disks, and despite the suggestion in the CRM, was not added at 5.1. The disks must be initialized, and any bad tracks/sectors spared, using whatever system you already own that supports amigo disks. If this system is an HP1000, you will need to gen a track map per the next paragraph. I don't have data on the mapping used by the HP3000, HP250/260, 9835/45 or Series 500. 200/300 Pascal Workstation (PaWS), it turns out, uses the same 400/800 cylinder track mapping shown below. So, it should be possible to mediainit on PaWS. However, the product version of PaWS does not include a CTABLE that knows about AMIGO/MAC discs. You need an unsupported version. I may be able to provide it on request. Also, although you might be able to mediainit on PaWS, an attempt to make an HFS file system there will probably fail. Make a LIF file system and let the HP-UX 'newfs' overwrite it. * The HP-UX driver only allows data access to the first 400 (7906) or 800 (7920/25) cylinders and assumes that the last 11 (7906) or 15 (7920/25) are spares. In table form... | Disk | Data Cylinders | Spare Cylinders | +------+----------------+-----------------+ | Type | First Last | First Last | | 7906 | 0 399 | 400 410 | | 7920 | 0 799 | 800 814 | | 7925 | 0 799 | 800 814 | * The MAC noswap /etc/disktab entries in 5.0 thru 6.5 are incorrect. If you don't change them, 'mkfs' or 'newfs' will fail, since it performs a simple reality check by seeking to the last sector, and the amigo driver will return an error, as implied earlier. The incorrect entries are... hp7920_noswap:\ :no swap:ns#12:nt#5:nc#815:\ :s0#48900:b0#8192:f0#1024:\ :se#256:rm#3600: hp7925_noswap:\ :no swap:ns#16:nt#9:nc#815:\ :s0#117360:b0#8192:f0#1024:\ :se#256:rm#2700: They should be... hp7920_noswap:\ :no swap:ns#12:nt#5:nc#800:\ :s0#48000:b0#8192:f0#1024:\ :se#256:rm#3600: hp7925_noswap:\ :no swap:ns#16:nt#9:nc#800:\ :s0#115200:b0#8192:f0#1024:\ :se#256:rm#2700: If you have a 7906, you need to create your own disktab entry. * Make device files. Assuming a 7925M at bus address 7, interface select code 14... # mknod /dev/dsk/7925 b 2 0x0e0700 # mknod /dev/rdsk/7925 c 11 0x0e0700 * Make a file system: # newfs -vn /dev/rdsk/7925 hp7925_noswap Delete the 'n' if you are building an intended boot/root disk. Specify also '-L' if you want long file names. * Make a mount point in the file system: # mknod /other * Mount the MAC disc: # mount /dev/dsk/7925 /other * Set the permissions as desired: # chmod 777 /other * Retain at least one instance of the system that formerly supported your MAC disk(s). It will be needed for diagnostics and media (re)-init. 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 This response does not represent the official position of, or statement by, the Hewlett-Packard Company. The above data is provided for informational purposes only. It is supplied without warranty of any kind.
daveg@hpfcdc.HP.COM (David Gutierrez) (10/04/90)
>* The 'mediainit(1)' command does not work with amigo disks, and despite the > suggestion in the CRM, was not added at 5.1. The disks must be > initialized, and any bad tracks/sectors spared, using whatever system you > already own that supports amigo disks. If this system is an HP1000, you > will need to gen a track map per the next paragraph. I don't have data on > the mapping used by the HP3000, HP250/260, 9835/45 or Series 500. The S300 Mediainit does support a small subset of the amigo disks, unfortunately the 7925 disk in question is not one of them :-( The supported Amigo disks are probably "don't care" devices since they are so old... hp9895, hp8290X, hp9121, hp9133[V,XV], and hp9134XV