Is this really, possibly, wonderfully true??!! Which version of ONTAP fixed this? The reason I ask is that on all our filers (mostly F760 and some F840's), the total number of folders at any one directory level was a function of the inode limit of a 2 bit, unsigned pointer - thus limited it to just under 65k directories at any one level. Since we have 9.5 million user directories spread across those filers, we had to write scripts to check when that threshold was being reached to create a new one.
We would just LOVE to hear that this limit has been removed!
-----Original Message----- From: Bruce Sterling Woodcock [mailto:sirbruce@ix.netcom.com] Sent: Tuesday, December 19, 2000 10:41 AM To: neil lehrer; toasters Subject: Re: 2 questions for f760
----- Original Message ----- From: "neil lehrer" nlehrer@ibb.gov To: "toasters" toasters@mathworks.com Sent: Tuesday, December 19, 2000 9:25 AM Subject: 2 questions for f760
hi,
- we will be moving our home and share dirs from old sun boxes to
f760. the home dirs on the suns were set up like:
\home \home\a \home\a\abe \home\a\allen \home\b
etc. in other words, user homedirs under the first letter of the id. i was told this was done for performance reasons, inode searching, on the sun boxes.
do i need to use this structure on the 760? is there a similar issue on filers? or can it just be \home\userid?
Unless you're talking 100,000 entries or so, it can be \home\userid. NTAP implemented a large directory performance enhancement a long time ago that could handle 10s of thousands of entries, and the 760 is many, many times faster than that. If you want to read the old paper, though:
http://www.netapp.com/tech_library/3006.html
Given the filesystem enhancements since then they may even have gone to b-trees by now.
Bruce