On Thu, Aug 27, 2009 at 04:58:04PM -0400, Chris Hoogendyk wrote:
>
>
> Brian Cuttler wrote:
> >On Thu, Aug 27, 2009 at 04:26:10PM -0400, Chris Hoogendyk wrote:
> >
> >>Brian Cuttler wrote:
> >>
> >>>Well, looks like we shot ourselves in the foot.
> >>>
> >>>disklist - finsen /export zfs-snapshot
> >>>
> >>>[finsen] ~ 61> cd /exp*
> >>>[finsen]: /export > ls
> >>>home/ pax/ samba/ source/ testing/ zones/
> >>>
> >>>Looks like it'll backup everything - however if you create
> >>>additional mountpoints...
> >>>
> >>>[finsen]: /export > zfs list | more
> >>>NAME USED AVAIL REFER MOUNTPOINT
> >>>finsenp 136G 132G 28.4K /finsenp
> >>>finsenp/export 136G 132G 33.6G /export
> >>>finsenp/export/home 55.0G 73.0G 71.0K
> >>>/export/home
> >>>finsenp/export/home/agaupel 32.9K 9.97M 32.9K
> >>>/export/home/agaup
> >>>el
> >>>finsenp/export/home/amanda 33.1M 73.0G 33.1M
> >>>/export/home/amand
> >>>a
> >>>finsenp/export/home/bhowland 9.71G 73.0G 9.71G
> >>>/export/home/bhowl
> >>>and
> >>>finsenp/export/home/dkim 32.9K 9.97M 32.9K
> >>>/export/home/dkim
> >>>it is as if the file systems are not subdirectories of one
> >>>another and you don't get backups of /export/home nor /export/home/<user>
> >>>
> >>>Is this what other people on this list with ZFS are seeing ?
> >>>
> >>>I recognize this as a ZFS side-effect and not an amanada issue.
> >>>
> >>>But I'm now forced ot ask if there is an amanda solution, or for
> >>>that matter, as I migrate my users to this new system if amanda
> >>>will support in excess of 1000 DLEs in a single config/disklist.
> >>>
> >>Aside from Dustin's answer and howto for Amanda, . . .
> >>
> >>You're creating user home directories with zfs create, rather than with
> >>mkdir? So each home directory ends up being a separate zfs file system?
> >>Thus, with the ability to apply zfs quotas and reservations? That sounds
> >>kind of complicated.
> >>
> >
> >the idea of per user quotas was extreemly attractive, and it
> >_seemed_ like such a good idea when our ZFS manager proposed it...
> >
> >Actually we have per user quotes on the current UFS file system,
> >which is ok for many of the users, but we have those few who say
> >things like
> > - its easier to find stuff in my home directory, I don't
> > want to bother with project directories on other drives.
> > - Just create a few hundred gig of dead space, that way when
> > you need space you have it reserved and can just delete
> > something.
> >
> >Things like NMR or scanning EM microscopes produce large data files...
> >we are just trying to keep the users from harming one another.
>
> Yup. I'm afraid of what's going to happen with our brand new Integrated
> Sciences Building and it's Bio-imaging laboratories and classrooms. They
> blew a huge bundle of some grant on a room full of advanced digital
> microscopes where you never look through an eyepiece. Everything is done
> on a computer screen with a firewire connection to a high end Nikon
> digital camera hooked into a fancy microscope all under software
> control. That, in turn is hooked up to my new server and its new disk
> array. Each student enrolled in bio-imaging has an account with a home
> directory that mounts from my server using some fancy ldap glue through
> samba from Mac OS X. As all that cranks up, I'm not quite sure what I'm
> in for. I've already run into trouble with some labs that are putting
> terrabyte drives on all their imaging workstations.
Yup - we are like that, but minus control of the grant money
and each PI (principal investigator) has his own kingdom. At
least if I can control the login directories and handle backups,
I can (usually) convince them to setup their own amanda servers
for backup of their particular data pool. There is NO real option
in my env for a wholistic solution.
> --
> ---------------
>
> Chris Hoogendyk
>
> -
> O__ ---- Systems Administrator
> c/ /'_ --- Biology & Geology Departments
> (*) \(*) -- 140 Morrill Science Center
> ~~~~~~~~~~ - University of Massachusetts, Amherst
>
> <hoogendyk AT bio.umass DOT edu>
>
> ---------------
>
> Erd�s 4
>
>
---
Brian R Cuttler brian.cuttler AT wadsworth DOT org
Computer Systems Support (v) 518 486-1697
Wadsworth Center (f) 518 473-6384
NYS Department of Health Help Desk 518 473-0773
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