Re: Windows 2003 R2 Disk Quotas
- From: "Shaun Rumbelow" <shaun.rumbelow@xxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 22 Dec 2005 02:49:02 -0800
Thanks for your reply Jabez, much appreciated
Q1 - we have EMC SAN environments with Dell servers running Windows 2003
Enterprise. We are running MS Cluster software in an active/active
environment for file shares. If one node fails then one physical server will
be running both virtual servers. Can the disk quota software failover on
cluster environments so that the one physical server knows about the quotas
for both virtual servers or is the quota information retained only on the
physical server?
Q2,3 & 4 - The command line tools are helpful. However they still take a
very long time. It took 12 minutes to list just 80 quotas (from about 300
quotas) and then I terminated the command as it was taking too long. I am
testing R2 on a virtual server - I know this will be slower than a physical
server but I don't believe it should be this slow. I have tested other disk
quota software such as Space Guard on a virtual server and that is almost
instant with 12000 quotas. It will be more difficult to test on a physical
server as the R2 demo will only run on an evaluation copy of Windows 2003 and
we don't have any new servers to put on an evaluation copy.
--
Thanks for your help
Shaun Rumbelowshaun.rumbelow@xxxxxxxxxxxxxxxxxxxx
"Jabez Gan" wrote:
> See my reply inline.
>
> --
> Jabez Gan
> http://www.blizhosting.com
> MSBLOG: http://msblog.resdev.net
>
>
> "Shaun Rumbelow" <shaun.rumbelow@xxxxxxxxxxxxxxxxxxxx> wrote in message
> news:D64269A8-E7B1-47DE-85B8-E0169E033863@xxxxxxxxxxxxxxxx
> > Hi,
> >
> > For a while I have been evaluating a number of 3rd party disk quota
> > products. As the organisation will require about 12,000 - 15,000 quotas I
> > created a test environment with 12,000 folders. All products tested
> > (except
> > Space Guard) were very slow to refresh the screen when an auto-quota was
> > created on the 12,000 folders. In some cases it took many hours.
> >
> > I have started to evaluate Windows 2003 R2 disk quotas as it seems to be a
> > better idea to keep the Windows 2003 servers using standard Microsoft
> > products rather than 3rd party products. However, after doing some testing
> > I
> > have some issues which someone may be able to help me with.
> >
> > 1. Is Windows 2003 R2 disk quotas software cluster aware?
>
> Please further explain your setup.
>
> >
> > 2. Is there a command line option to create an auto quota?
>
> In Command prompt,
> dirquota autoquota /?
>
> >
> > For example, if I have the following structure for about 100 departments I
> > don't want to manually create 100 auto-quoats. Instead I would like to use
> > the syntax below to automatically create them:
> >
> > Example Structure:
> > C:\userdata\IT
> > User1
> > User2
> > Etc.
> > C:\userdata\Finance
> > User1
> > User2
> > Etc.
> > C:\userdata\Cardio
> > User1
> > User2
> > Etc.
> >
> >
> > I would like to use the command:
> > For /D in %i in (c:\userdata\*.*) do some_quota_command %i
>
> See my answer above.
>
> >
> >
> > 3. I created 12,000 folders in the c:\userdata\finance folder such as
> > user1,
> > user2 .. user12000. I also created 2 folders in c:\userdata\IT. The disk
> > quota software took hours to refresh the screen and I went home before it
> > finished. The next day (about 9:30am), I tried to refresh the screen and
> > it
> > took several hours to refresh. I then deleted the auto quota for finance
> > and
> > the individual 12,000 quota entries. This took several more hours -
> > finally
> > finishing about 1:30pm. Does anyone know why it is so slow? When testing
> > 3rd
> > party products Storage Exec was extremely slow and I believe this is where
> > Microsoft has got its new R2 disk quota software from. Is this true?
>
> The disk quota (FSRM) is written by Microsoft. Microsoft didn't purcahse it
> from anywhere else.
>
> WIth so many folders, I suggest using command prompt to view them, instead
> of using Windows Explorer.
>
> But if you meant refreshing the FSRM GUI, i suggest that you use the command
> tool "dirquota quota list" (GUI can be slow).
>
> >
> > 4. I hoped testing would be a bit quicker now that the 12,000 quotas had
> > been deleted. However, when creating a new user under c:\userdata\IT it
> > takes
> > a long time to refresh the quota information on the screen. I also updated
> > a
> > template from 10Mb to 5Mb and applied it to all quotas (only about 203
> > quotas
> > exist). However, the filter on the screen seems to suggest that it is
> > filtering about 12,000 quotas due to the value it displays on the screen
> > (filter value) and the length of time it takes to refresh the screen with
> > the
> > new values. Does the quota software delete the 12,000 quota entries from
> > it
> > own database instantly or does it exist for a period of time? Why is it so
> > slow?
>
> I guess that a refresh will redetect all of the folders individually, that's
> why it's so slow. It will reupdate the entire list when you do a force
> update.
>
> >
> > Any help would be appreciated.
> >
> > Thanks for your help
> > Shaun Rumbelowshaun.rumbelow@xxxxxxxxxxxxxxxxxxxx
>
>
>
.
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