Hello Dave,
We use a separate volumes for each @sys.
More than this and to avoid having large volumes,
we sub-divide further volumes/mountpoints below @sys.
Large volumes lead to complications with volume operations
like backup, move and restore. We try to keep volumes < 200 MB
but this is not always possible.
It can be handy to analyse how frequently software is used
by looking at the statistics in "vos ex $volume -verbose".
For example:
mpb@tricorder $ pwd
/afs/@cell/@sys/opt/netscape405
mpb@tricorder $ fs lq
Volume Name Quota Used %Used Partition
rs43.netscape405 32768 27341 83% 80%
mpb@tricorder $ vos ex rs43.netscape405 -verbose
Fetching VLDB entry for 536892071 .. done
Getting volume listing from the server afs0.hursley.ibm.com .. done
rs43.netscape405 536892071 RW 27341 K On-line
afs0.hursley.ibm.com /vicepa
RWrite 536892071 ROnly 0 Backup 536892073
MaxQuota 32768 K
Creation Mon Jun 8 13:47:04 1998
Last Update Mon Jun 8 14:12:17 1998
** 3 accesses in the past day (i.e., vnode references)
RWrite: 536892071 Backup: 536892073
number of sites -> 1
server afs0.hursley.ibm.com partition /vicepa RW Site
I hope this helps!
--
cheers
paul http://acm.org/~mpb
Some people have told me they don't think a fat penguin
really embodies the grace of Linux, which just tells me they have
never seen an angry penguin charging at them in excess of 100 mph.
They'd be a lot more careful about what they said if they had.
- Linus Torvalds
Dave Lorand <[EMAIL PROTECTED]> wrote:
>Paul,
>
>Thanks for your thoughts; they'll be helpful in designing our new cell
>structure. A few questions:
>
>At 6:47 AM -0500 9/28/99, Paul Blackburn wrote:
>>Hello Dave,
>>
>>Some thoughts about cell layout. At /afs/@cell, we have:
>>
>> @sys-dirs architecture specific binaries and libraries
>> rs_aix41 rs_aix42 rs_aix43 etc
>
>Do you install each package in a separate volume per @sys, or do you have a
>common volume containing all architechtures? This seems to be the major
>issue about which folks here have waflled in the past. Some packages, like
>Matlab, seem to go better if there is a separate volume for each
>architechture because the authors wrote with single-platform installations
>in mind. Others, like Perl and Sendmail, expect to mingle architechtures
>within their trees, and they know how to separate architechture-specific
>files from architechture-independant ones. I'd appreciate anyone's
>comments on this issue.
>
>The comments about home directories were also helpful. We don't have any
>home directories in AFS yet, but we'd like to move in that direction once
>we change /bin/login.
>
>Regards,
>
>Dave
> ____________________________________________________________
>| Dave Lorand, System Administrator | [EMAIL PROTECTED] |
>| Social Science Research Computing | 773-702-3792 |
>| University of Chicago | 773-702-2101 (fax) |
>+-----------------------------------+------------------------+
> ---> finger [EMAIL PROTECTED] for my PGP key <--
