>
>
> We need to have our RW volumes on some kind of redundant hardware, to
> maximize reliability and down time. RAID evaluation is under way, but
> internally at Morgan, we have much more experience with Sun's ODS. We
> have yet to attempt to put AFS filesystems on top of ODS.
>
> Has anyone ever tried this?? Used it extensively?? I'm curious to
> give it a try, and take advantage of the mirroring functionailty to
> provide basic disk redundancy, but would like to hear success/failure
> stories from those who have tread this path before.
>
> The only obvious potential conflict would be fsck, as both AFS and ODS
> provide an enhanced version of this utility. The ODS fsck, according
> to the documentation, does not appear to be required for ODS, but
> merely advisable, at Sun claims to have optimized parallel preening,
> etc.
>
> My concern is conflicts between the kernel modifications to the basic
> filesystem code in the kernel (not my area of expertise). ODS is an
> enhancement to the 4.2 filesystem, and AFS is implmented on top of
> that, so in theory, there should be no problem.
>
> W. Phillip Moore Phone: 81-3-3286-9359
> Information Technology Department FAX: 81-3-3286-9040
> Morgan Stanley Japan Ltd. E-mail: [EMAIL PROTECTED]
> Ote Center Bldg. 3F, 1-1-3 Otemachi, Chiyoda-ku, Tokyo 100
>
>
>
>
We recently tested AFS / Online DiskSuite with SunOS 4.1.3, and everything
went very smoothly. We simulated disk crashes and machine crashes, and
replaced disks with new ones. Everything worked like we expected it to.
We have not yet implemented this in our labs, but from the results of our
tests, we plan to do it soon.
As you already noticed, Online DiskSuite's fsck needed to be replaced
with AFS's. This did not cause any problems for us, it worked just fine.
If anyone has had problems with this combination, we would
appreciate input.
Mike
--
_____________________________________________________________________
Michael A. Lee [EMAIL PROTECTED]
Computer Aided Engineering Center Unix Systems Manager
University of Wisconsin-Madison
