[OpenAFS-devel] Requesting clarification regarding volume siz e limit.

[Broughton, Travis V]

The volume size limit is a recommendation, not a hard limitation.  It has to
do with what can be reliably moved, dumped, restored, replicated and
released, etc.  These factors depend as much on your specific hardware,
network, and load as they do on the software.  You can set the quota to 0,
which means it is unlimited, or you can set the quota to some value which
may or may not be within the 8GB recommendation.  There is nothing in the
code to prevent a volume from growing beyond 8GB.

I have seen volumes created on AFS 3.6 with unlimited quota that had grown
to 10+GB without any adverse effects, but this is generally not recommended.

-tvb

> -----Original Message-----
> From: Kangesh Gunaseelan [mailto:kangesh@real.com]
> Sent: Thursday, April 05, 2001 3:35 PM
> To: Derek Atkins
> Cc: openafs-devel@openafs.org; kangesh@prognet.com
> Subject: Re: [OpenAFS-devel] Requesting clarification regarding volume
> size limit.
> 
> 
> 
> 
> Thanks for confirming the first part of my request.
> 
> What is the behavior of AFS when it comes to enforcing the limits?
> For example, will AFS prevent a file from being copied to a volume if 
> that particular file's size causes  the size limit to exceed 8 GB? 
> If AFS allows copying to occur, what would be the side effects? 
> Or, is volume limit just a recommendation and not a hard limitation?
> 
> Thanks,
> Kangesh
> 
> 
> 
> 
> At 02:52 PM 4/5/01 -0400, Derek Atkins wrote:
> >Kangesh Gunaseelan <kangesh@real.com> writes:
> >
> >> Hi,
> >> 
> >> It will be great if someone could confirm my understanding 
> of volume size
> >> limits and answer some questions regarding how AFS 
> enforces volume size 
> >limits.
> >> The release notes says volume sizes are limited to 8GB.  
> This limit really
> >> applies only to files that are part of the specific 
> volume, right?  In
> >> other words, even though the installation process calls 
> for creation of a
> >> root.cell volume that doesn't mean the total AFS file 
> space is limited to
> >> just 8GB, instead, there can be any number of volumes in 
> addition to
> >> root.cell and each volume's total file size is limited to 
> 8 GB, right?  The
> >> total file space would just be limited to the cumulative 
> partition sizes
> >> and an individual partition size would be limited to the standard
> >> filesystem size limitation, right?
> >
> >Correct.
> >
> >-derek
> >
> >-- 
> >       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
> >_______________________________________________
> >OpenAFS-devel mailing list
> >OpenAFS-devel@openafs.org
> >https://lists.openafs.org/mailman/listinfo.cgi/openafs-devel
> 
> _______________________________________________
> OpenAFS-devel mailing list
> OpenAFS-devel@openafs.org
> https://lists.openafs.org/mailman/listinfo.cgi/openafs-devel
>