Has anyone tried booting from an ASE shared bus. Under OSF 3.01 and ASE 1.1.
After some testing, it does'nt seem to work very well. If I boot one system at a
time it works fine. If I try booting both systems at once, one of them will fail
every time. There seems to be a problem with resets sequences.
The documentation doesn'nt mention anything about this. It seems to take for
granted that you will use the internal bus for your non-shared local disks.
The reason we want to use the shared buses for booting and not the internal bus
is that we want to have our root disk mirrored. So on a 3000/600 we use two
PMAZ-C with 4 storage works. We want to mirror each disk from one PMAC-C to the
other. We dont want to use the internal disk because we want to be able to
hot-swap a defective disk, and we want to have our mirrors on different SCSI
controlers, so if we use the primary external bus, we would still have to mirror
it on one of the PMAZ-C. We could then boot from the primary bus, but if this
disk fails we would have to boot from the disk on the PMAZ-C!
This last option would seem to be the best, only if we switch the disks from the
PMAZ-C to the primary in case of failure. This is not very practical though.
Any comments welcome.
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| Jean-Pierre Lamarche | |___| |
| DMR Quebec inc. | __(X)_(_)_(X)__ |
| | O ' O |
| lamarcjp_at_sidoci.qc.ca | \_/ |
| 514-252-4333 (288) | \#/ |
| | o |
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Received on Wed Jan 04 1995 - 10:01:34 NZDT