edv-vie@tuvie (EDV Ges.m.b.H.) (06/22/89)
Hi everybody ! I try to generate a filesystem on a minidisk for NEWS. There are 190000 blocks available and I try to generate 90000 inodes. mkfs /dev/hd7 190000:90000 If I say less than 32000 inodes, the AIX-system will do it, but if I say more than 32000 inodes (iE 90000) I will get 32000 and not one more. thanks for help fozzy --------------------------------------------------------- EDV GesmbH Vieanna/Europe USENET: fozzy@edvvie.at Tel: (0043) (222) 59907 (8-20 CET)
kurt@ibmarc.uucp (Kurt Shoens) (06/22/89)
In a recent append, edv-vie@tuvie (EDV Ges.m.b.H.) writes... >If I say less than 32000 inodes, the AIX-system will >do it, but if I say more than 32000 inodes (iE 90000) >I will get 32000 and not one more. AIX/RT limits filesytems to 32000 inodes, alas. Strangely, both AIX/370 and AIX/PS-2 do NOT limit you to 32000 inodes/fs. That is, they have 4-byte inode numbers. Kurt Shoens, IBM Almaden Research Center, ...!uunet!ibmarc!kurt
njs@scifi.UUCP (Nicholas J. Simicich) (06/28/89)
In article <710@tuvie> edv-vie@tuvie (EDV Ges.m.b.H.) writes: (....) >I try to generate a filesystem on a minidisk for NEWS. >There are 190000 blocks available and I try to generate >90000 inodes. (...) >If I say less than 32000 inodes, the AIX-system will >do it, but if I say more than 32000 inodes (iE 90000) >I will get 32000 and not one more. (.....) AIX uses an unsigned short for inode number. This would limit one to 65,535 inodes (2^16-1) except that, for some reason, mkfs only allows signed positive inode numbers. You might think this would allow 32767 (2^15-1) inodes, but mkfs further restricts the number to 32000. News B, at least, forces you to use a single file system for news through its use of hard links, even when you are sure that there will be no cross posting. This makes it tough to keep a full feed. Does anyone know if news C fixes this (I know, I know, wrong group...)? Not an official spokesman for IBM, and speaking for myself. -- Nick Simicich --- uunet!bywater!scifi!njs --- njs@ibm.com (Internet)
honey@mailrus.cc.umich.edu (peter honeyman) (06/29/89)
Kurt Shoens writes: >AIX/RT limits filesytems to 32000 inodes, alas. Strangely, >both AIX/370 and AIX/PS-2 do NOT limit you to 32000 inodes/fs. >That is, they have 4-byte inode numbers. yes, but. fsck goes nuts if you use inode numbers > 32k. it's always something. peter