It is correct that you are required to use NTFS or MIXED security style if you want to manage your data using NTFS style ACLs. There is an excellent description of how security styles work located at the following link:

http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/conc... http://now.netapp.com/NOW/knowledge/docs/olio/guides/53_troubleshooting/concepts.shtml

However, the second sentence is a common misperception. You are not required to use the MIXED security style in order to work with both NT and UNIX data. You can access your data from either Windows or UNIX clients using any security style. The security style of a particular qtree or volume determines what method the filer will use to authenticate users and do file security.

-----Original Message----- From: Reinoud Reynders [mailto:Reinoud.Reynders@uz.kuleuven.ac.be] Sent: Sunday, June 10, 2001 1:11 PM To: toasters@mathworks.com; Jessica Fernandez Subject: Re: NTFS Formatting

Dear Jessica,

For the NT security, the both filers must be set to NTFS or MIXED style (qtree option). Because you worked with unix and NT data, it must be MIXED style. There is no need to format your filer, it has it's own file system (WAFL).

Greetings,

Reinoud

UZ KULEUVEN BELGIUM

----- Original Message ----- From: Jessica Fernandez mailto:jasf@lanl.gov To: toasters@mathworks.com mailto:toasters@mathworks.com Sent: Saturday, June 09, 2001 12:53 AM Subject: NTFS Formatting

I have a filer with UNIX and NT data. I want to move via ndmp to a larger filer. In preparation for the data move I read somewhere that in order for NT data to maintain security permissions, the destination must be NTFS formatted. Is this true, and how do you perform this if the host is a Unix machine but other NT servers are available. Also how would UNIX data fit on an NTFS format. Any help is greatly appreciated.

Jessica

JESSICA A. S. FERNANDEZ ESA-FM Facility Management E-mail: jasf@lanl.gov TA-16-661-101, MS-C933 Voice: 505-665-8051 Los Alamos National Laboratory Pager: 104-6707 Los Alamos, New Mexico 87545 FAX: 505-665-9490