hi,
1. 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?
2. i have heard i can connect a tape device to a fibre channel card rather than the scsi to get better performance. anybody know anything about this? i'm not looking for a separate network, just more performance.
current config is:
2 atm cards fcal card cluster card [i am configured with 1 f760 as active and the other as standby, do nothing. the tape drive will be attached to the active filer].
plus the other normal cards.
thanks.
----- 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
-
Bruce Sterling Woodcock -
neil lehrer