mdm@wdl40.wdl.loral.com (Mike D Marchionna) (05/30/91)
Well I finally managed to get my hard disk working again after a horrible low-level formatting disaster. Many thanks go to Charles Chambers for lending me his program to cure my sick disk. I also would like to thank Pascal Chesnais for the reponse, but my mailer barfed on your return address. A lingering problem still exists when I perform a BuildDisk under 2.0, but not under 1.0. Here is a portion of the 2.0 BuildDisk output I get with my drive. Building hard disk # # Building a 660 MB hard disk drive. # # NeXT File System build procedure # Build a single partition hard disk from booted file system # Release 2.0 # # Build the read-write partition (a) # First check the size of the source directories disk name: XT-8760S-1024-ALL disk type: fixed_rw_scsi writing disk label creating new filesystem on /dev/rsd0a /usr/etc/newfs -n -v /dev/rsd0a /etc/mkfs /dev/rsd0a 676256 28 15 8192 1024 32 10 60 4096 t Warning: 4096 bytes per inode impossible due to cylinder group size, using 5605 bytes per inode Reduce cylinder group size to reduce bytes per inode. Warning: 364 sector(s) in last cylinder unallocated /dev/rsd0a: 676256 sectors in 1611 cylinders of 15 tracks, 28 sectors 692.5Mb in 51 cyl groups (32 c/g, 13.76Mb/g, 2048 i/g) super-block backups (for fsck -b#) at: 16, 13488, 26960, 40432, 53904, 67376, 80848, 94320, 107792, 121264, 134736, 148208, 161680, 175152, 188624, 202096, 215056, 228528, 242000, 255472$ 268944, 282416, 295888, 309360, 322832, 336304, 349776, 363248, 376720, 390192$ 403664, 417136, 430096, 443568, 457040, 470512, 483984, 497456, 510928, 524400$ 537872, 551344, 564816, 578288, 591760, 605232, 618704, 632176, 645136, 658608$ 672080, initialization complete [remaining text deleted] When I run /usr/etc/scsimodes I get the following information: localhost# /usr/etc/scsimodes /dev/rsd0a SCSI information for /dev/rsd0a Drive type: MAXTOR XT-8760S 1024 bytes per sector 28 sectors per track 15 tracks per cylinder 1632 cylinder per volume (including spare cylinders) 4 spare sectors per cylinder 45 alternate tracks per volume 676415 usable sectors on volume Does anyone out there know anything about this cylinder group size? Is there anyway to adjust this via /etc/disktab? Any insight into this problem would be appreciated. Mind you I can live with it. I'm more curious then anything else. mdm@wdl1.wdl.loral.com -- _________________________________________________________________________ ( _______________________________ Brain, and brain! What is brain! ) \________________________________) --Star Trek (Spock's Brain) / El_Rayo_X_______________________________________________________________/