curt@oce.orst.edu (Curt Vandetta) (01/03/91)
Hello folks, I'm having some problems with my HP 6300 20GB/A. It is hooked to a HP 9000/370 with 8M of ram, with the latest SCSI patches available from HP, and HP-UX 7.0 B. The autochanger (6300 20GB/A) is currently serving 2 purposes. The first is a write-few, read many mode. Where I'm storing images (satellite data) and looking at them often, but very rarely modifying them. The second mode, and the one that is causing all of the problems, is write often and delete often. The autochanger is serving as temporary storage in the production of scientific anamations. This mode requires us to write lots of small files to the autochanger, read them back into to another package and then write out some larger raster images (or frames of the video). It doesn't take long working in this mode for the opticals to develop bad blocks and crash the host 370, fsck doesn't seem to solve the problem (occasionally getting lost and hanging) unless I remove the optical disk from the autochanger and put it into a HP 650/A (single sided optical disk drive) then fsck will fix the corrupt optical disk. Are there any relevant patches that I might be missing? I'm currently thinking of moving the autochanger off of the 370 and onto a HP 9000/400t. (Not that I think this will solve any of my problems, but the 400 isn't as vital to my network as the 370 and if it crashes it's not a MAJOR inconvience.) So now I have a question, the 400 is running HP-UX 7.03 A and has 20M of memory. Is the april 16. SCSI patch applied to 7.03 A, or do I need to find another patch for 7.03? Also, I've read several articals in this group concerning memory caches for the opticals, now that I'm moving to a machine that has memory, can someone point me at how to create such a cache? I would also like to hear if there are any problems/gotcha-ya's that might occur in moving the autochanger from the 370 to the 400. (Like will I have to media-init all of the opticals again?) Thanks, Curt -------------------------------------------------------------------------- Curt Vandetta College of Oceanography curt@oce.orst.edu Oregon State University
chrise@hpnmdla.HP.COM (Chris Eich) (01/04/91)
1. 7.03 may have _a_ SCSI patch, but make sure you have the August patch
(the string "S300/7.0/p107" should have meaning to your SE):
# what /hp-ux | grep scsi
PATCH_7.0:$Header: scsi_if.c,v 1.2.17.11 90/08/07 16:17:02 paul Exp $
PATCH_7.0:$Header: scsi.c,v 1.2.17.12 90/08/07 16:16:42 paul Exp $
PATCH_7.0:$Header: scsi_ccs.c,v 1.2.17.6 90/08/07 16:17:18 paul Exp $
PATCH_7.0:$Header: scsitape.c,v 1.2.17.14 90/08/16 15:10:07 paul Exp $
2. Check the ROM revision in the autochanger:
# /etc/diskinfo -v /dev/rac/ioctl | grep "rev level"
^^^^^^^^^
(I'm not sure about the device file) should return 2.13. If not, order
an upgrade (HP part number C1700-60236).
Chris Eich