[OpenAFS] Re: OpenAFS-info digest, Vol 1 #1500 - 13 msgs

Derek Atkins warlord@MIT.EDU
Tue, 09 Dec 2003 17:44:53 -0500


sabah <sabah@hep.man.ac.uk> writes:

>  Hi Derek,
>          I am sorry I should if included "oenafs-info" in My reply.
>
> On Tue, 9 Dec 2003, Derek Atkins wrote:
>
>> Hi,
>> 
>> Please CC: openafs-info on all your replies...
>> 
>> sabah <sabah@hep.man.ac.uk> writes:
>> 
>> >  Hi Derek,
>> >          Thanks for your reply. the cache is in its own partition.
>> 
>> Then so long as /usr/vice/etc/cacheinfo is configured correctly
>> you will never overflow your cache.
>
>   I only have the following line in the cacheinfo file
>
>  /afs:/usr/vice/cache:100000
>  and the cache partition size:
>   500 MB

This means your cache is configured to 100MB.  If your partition is
500MB then I would suggest you increase your cachesize parameter to
about 450000.

-derek

>   Thanks,  Sabah.
>
>> 
>> >  How do I see what the cache manager is doing. Which process I have
>> >  to look for? What is the recommended cache size for a server with
>> >  100 GB users area?
>> 
>> A number of ways:
>>   fs getcache
>>   cmdebug
>>   etc.
>> 
>> Read the AFS admin guide.  Without knowing exactly what you are
>> looking for I don't know what to tell you.
>> 
>> >   Thanks,  Sabah. 
>> 
>> -derek
>> 
>> > On Tue, 9 Dec 2003, Derek Atkins wrote:
>> >
>> >> If the cache is on its own partition then the afs cache manager will
>> >> deal with making sure it doesn't fill.  If you share the cache
>> >> with other data then you're completely on your own.
>> >> 
>> >> The recommended way is to have a dedicated cache partition.
>> >> 
>> >> -derek
>> >> 
>> >> sabah <sabah@hep.man.ac.uk> writes:
>> >> 
>> >> >    Dear All,
>> >> >             If you have an AFS server with "cache" area only
>> >> >   500 MB. How would you make sure this area does not get full?
>> >> >   My understanding is that the cache area should not keep a copy
>> >> >   longer than it need. 
>> >> >   
>> >> >   Is there a way of making sure the cache does not get filled?
>> >> >   Is there away avoiding server hung due to the cache area full?     
>> >> >
>> >> >    Thanks,  Sabah.
>> >> >
>> >> > ***********************************************************************
>> >> > *     From Sabah Salih                                                *
>> >> > *     Department of Physics and Astronomy,                            *
>> >> > *     The University of Manchester, Oxford Rd, Manchester M13 9PL     *
>> >> > *     Tel: +44 1612754171 or  x4171 Mobile: 07941344515               *
>> >> > *     E-mail: sabah@hep.man.ac.uk                                     *
>> >> > *     Home:							      *
>> >> > *     48 Danes Road, Fallowfield, Manchester			      *
>> >> > *      M14 5JS							      *
>> >> > *                                                                     *
>> >> > ***********************************************************************
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > OpenAFS-info mailing list
>> >> > OpenAFS-info@openafs.org
>> >> > https://lists.openafs.org/mailman/listinfo/openafs-info
>> >> >
>> >> >
>> >> 
>> >> 
>> >
>> > -- 
>> > ***********************************************************************
>> > *     From Sabah Salih                                                *
>> > *     Department of Physics and Astronomy,                            *
>> > *     The University of Manchester, Oxford Rd, Manchester M13 9PL     *
>> > *     Tel: +44 1612754171 or  x4171 Mobile: 07941344515               *
>> > *     E-mail: sabah@hep.man.ac.uk                                     *
>> > *     Home:							      *
>> > *     48 Danes Road, Fallowfield, Manchester			      *
>> > *      M14 5JS							      *
>> > *                                                                     *
>> > ***********************************************************************
>> >
>> >
>> >
>> >
>> 
>> 
>
> -- 
> ***********************************************************************
> *     From Sabah Salih                                                *
> *     Department of Physics and Astronomy,                            *
> *     The University of Manchester, Oxford Rd, Manchester M13 9PL     *
> *     Tel: +44 1612754171 or  x4171 Mobile: 07941344515               *
> *     E-mail: sabah@hep.man.ac.uk                                     *
> *     Home:							      *
> *     48 Danes Road, Fallowfield, Manchester			      *
> *      M14 5JS							      *
> *                                                                     *
> ***********************************************************************
>
>
>
>

-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
       warlord@MIT.EDU                        PGP key available