We are running an MR-AFS fileserver under AIX 4.1. Since the MR-AFS
source is based on AFS 3.3a I had to include the changes for AIX 4.1
from standard AFS 3.4a. The changes in src/vol/listinodes.c are not
sufficient to allow the salvager to read the inodes from the raw device
correctly, if you don't have created the filesystem with the default
values for bytes/inode and fragment-size.
The fields s_iagsize and s_fragsize should be interpreted!!!
If you don't do that you may damage your volumes and loose files.
The changes I made are the following:
some global variables
#ifdef AFS_AIX41_ENV
int fragsize;
int iagsize;
int ag512;
int agblocks;
#endif /* AFS_AIX41_ENV */
Then in ListViceInodes()
#ifdef AFS_AIX41_ENV
fragsize = (fs.s_fragsize)? fs.s_fragsize : FSBSIZE;
iagsize = (fs.s_iagsize)? fs.s_iagsize : fs.s_agsize;
ag512 = fragsize * fs.s_agsize / 512;
agblocks = fragsize * fs.s_agsize >> BSHIFT;
#endif /* AFS_AIX41_ENV */
and later
#ifdef AFS_AIX41_ENV
imax = iagsize * (fs.s_fsize/ag512) -1;
#else /* AFS_AIX41_ENV */
imax = ((fmax / fs.s_agsize +
((fmax % fs.s_agsize) >= fs.s_agsize/INOPB ? 1 : 0))
* fs.s_agsize) - 1;
#endif /* AFS_AIX41_ENV */
and in ginode()
#ifdef AFS_AIX41_ENV
ag = inum / iagsize;
pblk = (ag == 0) ? INODES_B + inum/INOPB
: ag*agblocks + (inum - ag*iagsize)/INOPB;
#else /* AFS_AIX41_ENV */
ag = inum / fs.s_agsize;
pblk = (ag == 0) ? INODES_B + inum/INOPB
: ag*fs.s_agsize + (inum - ag*fs.s_agsize)/INOPB;
#endif /* AFS_AIX41_ENV */
I hope Transarc did not make the same mistakes in v3fshelper!!!
Hartmut Reuter
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Hartmut Reuter e-mail [EMAIL PROTECTED]
phone +49-89-3299-1328
RZG (Rechenzentrum Garching) fax +49-89-3299-1301
Computing Center of the Max-Planck-Gesellschaft (MPG) and the
Institut fuer Plasmaphysik (IPP)
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