SFS (shared file system) is a file system unique to VM, VM also has BFS (byte file system) and of course, minidisks. Information is stored on minidisks (mdisks) and SFS in the same format, i.e, you can copy a file from SFS to/from mdisks with a copy command. BFS uses different commands. Each FS has it's pros and cons. NFS allows access to any of these file types. I've used NFS to read/write to all three of these storage methods, but NFS seems to work better or is more friendly towards SFS and BFS (in my opinion). I have an app. that I copy files from a mdisk to SFS and then use NFS (aka VMNFS) so I can issue a mount command from linux and copy the files to that linux. Works great; getting the security right can be a little tricky.
Steve G. Brad Hinson <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <[email protected]> 05/14/2007 04:31 PM Please respond to Linux on 390 Port To: [email protected] cc: Subject: Re: RHEL 4 NFS question I haven't heard much about SFS; Is this basically NFS for VM? Just to eliminate some unknowns, try: # service iptables stop # setenforce 0 and retry the mount. This will stop the firewall (iptables) and temporarily disable SELinux. It also may be helpful to look at a network trace (tcpdump) of the NFS traffic. I can shoot you a note offline on how to set this up if the above doesn't work for you. -Brad On Mon, 2007-05-14 at 13:02 -0700, Spann, Elizebeth (Betsie) wrote: > The dmesg display has no reference to 'firewall'. What should I be > looking for, please? > B > > -----Original Message----- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of > Mark Post > Sent: Monday, May 14, 2007 12:21 PM > To: [email protected] > Subject: Re: RHEL 4 NFS question > > >>> On Mon, May 14, 2007 at 1:53 PM, in message > <[EMAIL PROTECTED]>, "Spann, > Elizebeth (Betsie)" <[EMAIL PROTECTED]> wrote: > > Hi Linux exports, > > Oh, man, do I have to start worrying about export controls now? ;) > > > In converting a SuSE SLES 9 server to RHEL AS 4, I cannot mount a SFS > > running on another VM system. > > The VMNFS server on the other VM system does not restrict exports. > > The SFS files can be mounted on the SLES 9 systems, and on the VM > > system running the zLinux guests. > > The RHEL server can NFS mount exported files on other zLinux systems. > > Pings are successful by IP and hostname in all directions. > > > > The message is > > mount: trying 10.55.27.91 prog 100003 vers 3 prot tcp port 2049 > > mount: mount to NFS server 'vm3' failed: timed out (retrying). > > Just a shot in the dark, but what does the firewall on the RHEL system > say about this, via the dmesg command? > > -snip- > > Anyone have any suggestions, please? > > Stick with what works? =:O (Sorry, couldn't resist.) > > > Mark Post > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, send > email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or > visit http://www.marist.edu/htbin/wlvindex?LINUX-390 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Brad Hinson <[EMAIL PROTECTED]> Technical Account Manager Red Hat, Inc. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
