Discussion:
Windows NFS (was: z14 and z/OS 2.3 Blog Post)
Add Reply
Paul Gilmartin
2017-08-02 18:17:41 UTC
Reply
Permalink
Raw Message
Microsoft includes NFS ("Services for NFS") in Windows 7 Enterprise and
Ultimate. (I don't think Windows 8.x had an Ultimate flavor, so in the
Windows 8.x stream Microsoft's NFS is only in Windows 8 Enterprise.) All
that really changed in Windows 10 is that Microsoft included NFS in their
lower Windows 10 license tiers.
What security mechanism(s) do(es) it provide:
o UID/GID?
(What do UID and GID mean to Windows?)
o MVSLOGIN?
o Kerberos?
o Other (specify)?

Does it support:
o Classic data sets?
(ISPF-style member serialization (this seems to be a z/OS server function)?
o HFS/zFS files?

-- gil

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to ***@listserv.ua.edu with the message: INFO IBM-MAIN
Chris Vogan
2017-08-03 15:46:12 UTC
Reply
Permalink
Raw Message
Post by Paul Gilmartin
Microsoft includes NFS ("Services for NFS") in Windows 7 Enterprise and
Ultimate. (I don't think Windows 8.x had an Ultimate flavor, so in the
Windows 8.x stream Microsoft's NFS is only in Windows 8 Enterprise.) All
that really changed in Windows 10 is that Microsoft included NFS in their
lower Windows 10 license tiers.
o UID/GID?
AuthUnix (See below on Kerberos), So UID/GID are used.
Post by Paul Gilmartin
(What do UID and GID mean to Windows?)
Not much but the NFS server needs them, Windows 10 defaults to -2 for UID/GID, which some NFS server can handle the positive integer of "4294967294" mapped to 65534(nobody). RACF cannot handle an integer of this size. So a registry change is necessary to set a usable UID/GID.
Windows Server 2012/16 still has support for Unix UID/GID for users in the ADDC. Possible if the Windows workstation is part of a domain that these will be used over NFS.
Post by Paul Gilmartin
o MVSLOGIN?
No windows support for MVSLOGIN. Windows executables have not been provided by IBM since windows NT.
Post by Paul Gilmartin
o Kerberos?
No z/OS NFS only supports kerberos with NFSv4. Windows supports NFSv2/3/4.1 . The only common NFS versions are NFSv2/3.
Post by Paul Gilmartin
o Other (specify)?
I am not sure if Windows 10 supports PCNFSD? It used to be part of the now defunct SFU.
Post by Paul Gilmartin
o Classic data sets?
YES
Post by Paul Gilmartin
(ISPF-style member serialization (this seems to be a z/OS server function)?
o HFS/zFS files?
The z/OS NFS Server handles the posix representation of MVS datasets(PS,PO,VSAM). Serialization is based on the dataset type.
PS: Write/Exclusive otherwise Share
VSAM: Write/Share The access method manages data sharing based on SHAREOPTS.
PDSE: Write/Share The access method manages data integrity.
PDS: Write/Share Puts exclusive ENQs against the dataset and members.
Post by Paul Gilmartin
-- gil
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
Loading...