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max directory depth and max dir size

 

 

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nick at nicholasbernstein

Mar 2, 2012, 6:31 AM

Post #1 of 5 (1430 views)
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max directory depth and max dir size

Maybe I'm just being an idiot, but I couldn't seem to find best practices that describe max directory depth and size. I know anecdotally directories shouldn't be larger than 10mb (the directory itself, not the contents) but I can't seem to find an official best practice guide that has these. Can anyone point me to the right doc?

Thanks in advance,
Nick
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Robert.Francett at bp

Mar 2, 2012, 7:06 AM

Post #2 of 5 (1390 views)
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RE: max directory depth and max dir size [In reply to]

this might help...
https://kb.netapp.com/support/index?page=content&id=3011562

(still looking)

-----Original Message-----
From: toasters-bounces [at] teaparty
[mailto:toasters-bounces [at] teaparty] On Behalf Of Nicholas Bernstein
Sent: Friday, March 02, 2012 5:31 AM
To: toasters [at] teaparty
Subject: max directory depth and max dir size

Maybe I'm just being an idiot, but I couldn't seem to find best
practices that describe max directory depth and size. I know anecdotally
directories shouldn't be larger than 10mb (the directory itself, not the
contents) but I can't seem to find an official best practice guide that
has these. Can anyone point me to the right doc?

Thanks in advance,
Nick
_______________________________________________
Toasters mailing list
Toasters [at] teaparty
http://www.teaparty.net/mailman/listinfo/toasters

_______________________________________________
Toasters mailing list
Toasters [at] teaparty
http://www.teaparty.net/mailman/listinfo/toasters


sslamon at akamai

Mar 2, 2012, 8:18 AM

Post #3 of 5 (1402 views)
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RE: max directory depth and max dir size [In reply to]

Nick,

You're not going to find an official guide on this topic, but here's what I found in the Netapp forums after having similar questions:

https://communities.netapp.com/message/5775#5775

~Stef


-----Original Message-----
From: Nicholas Bernstein [mailto:nick [at] nicholasbernstein]
Sent: Friday, March 02, 2012 09:31
To: toasters [at] teaparty
Subject: max directory depth and max dir size

Maybe I'm just being an idiot, but I couldn't seem to find best practices that describe max directory depth and size. I know anecdotally directories shouldn't be larger than 10mb (the directory itself, not the contents) but I can't seem to find an official best practice guide that has these. Can anyone point me to the right doc?

Thanks in advance,
Nick
_______________________________________________
Toasters mailing list
Toasters [at] teaparty
http://www.teaparty.net/mailman/listinfo/toasters

_______________________________________________
Toasters mailing list
Toasters [at] teaparty
http://www.teaparty.net/mailman/listinfo/toasters


sknauf at chipxonio

Mar 2, 2012, 8:44 AM

Post #4 of 5 (1423 views)
Permalink
AW: max directory depth and max dir size [In reply to]

Hi Nicholas,

https://kb.netapp.com/support/index?page=content&id=3011562

The maxdirsize default is 1% of the systems physical memory. We have
millions of files in one directory (NFS)and increased the maxdirsize (nearly
doubled).The maxdirsize should not be greater than 3% of the filers systems
physical memory! Then you run in lots of problems and all protocolls are
affected. We bought a new Filer with more RAM and split the Million Files
(38 Mio.!) into subdirectories ;)

You can check the current size with "slist PATH" (e.g. PATH = /vol1/.....)


Ontap Limitations:

https://kb.netapp.com/support/index?page=content&id=3012261


Revert the maxdirsize to a smaller Value:
https://kb.netapp.com/support/index?page=content&id=3011980


MAxdirsize Calculation:

https://communities.netapp.com/thread/2564


greets

Steffen

-----Ursprüngliche Nachricht-----
Von: toasters-bounces [at] teaparty [mailto:toasters-bounces [at] teaparty] Im
Auftrag von Nicholas Bernstein
Gesendet: Freitag, 2. März 2012 15:31
An: toasters [at] teaparty
Betreff: max directory depth and max dir size

Maybe I'm just being an idiot, but I couldn't seem to find best practices
that describe max directory depth and size. I know anecdotally directories
shouldn't be larger than 10mb (the directory itself, not the contents) but I
can't seem to find an official best practice guide that has these. Can
anyone point me to the right doc?

Thanks in advance,
Nick
_______________________________________________
Toasters mailing list
Toasters [at] teaparty
http://www.teaparty.net/mailman/listinfo/toasters


_______________________________________________
Toasters mailing list
Toasters [at] teaparty
http://www.teaparty.net/mailman/listinfo/toasters


speedtoys.racing at gmail

Mar 2, 2012, 9:11 AM

Post #5 of 5 (1389 views)
Permalink
Re: max directory depth and max dir size [In reply to]

There's nothing official, because it depends how the environment..mostly
application, is built around a high file count problem.

Ive helped customers manage systems with 5B files & directories on a single
system, but how the filesystem was used by the application layer..was
critical in this working...or not.

Local disk or not, you dont want huge directory structures.



On Fri, Mar 2, 2012 at 8:18 AM, Slamon, Stefanie <sslamon [at] akamai> wrote:

> Nick,
>
> You're not going to find an official guide on this topic, but here's what
> I found in the Netapp forums after having similar questions:
>
> https://communities.netapp.com/message/5775#5775
>
> ~Stef
>
>
> -----Original Message-----
> From: Nicholas Bernstein [mailto:nick [at] nicholasbernstein]
> Sent: Friday, March 02, 2012 09:31
> To: toasters [at] teaparty
> Subject: max directory depth and max dir size
>
> Maybe I'm just being an idiot, but I couldn't seem to find best practices
> that describe max directory depth and size. I know anecdotally directories
> shouldn't be larger than 10mb (the directory itself, not the contents) but
> I can't seem to find an official best practice guide that has these. Can
> anyone point me to the right doc?
>
> Thanks in advance,
> Nick
> _______________________________________________
> Toasters mailing list
> Toasters [at] teaparty
> http://www.teaparty.net/mailman/listinfo/toasters
>
> _______________________________________________
> Toasters mailing list
> Toasters [at] teaparty
> http://www.teaparty.net/mailman/listinfo/toasters
>



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