02-06-2014
Difference between NFS and GPFS
Hello Gurus,
Could you please help me out of the difference between GPFS and NFS.
Thanks-
P
10 More Discussions You Might Find Interesting
1. Red Hat
Hi All....
This is related to exporting a file system through nfs. Just wanted to understand the significance of sync/async in nfs.
We give this entry in /etc/export file. What is the difference between these two.
Any hep is appreciated.
Regards,
Amol. (2 Replies)
Discussion started by: Amol21
2 Replies
2. AIX
Hi,
does anyone here happen to know if I could run GLVM or GPFS on Solid State Disks?
I have a high volume / high transaction Sybase HACMP cluster currently setup with SRDF to the DR datacentre. My business now considers to move everything to SSD storage but we still need to get the data to... (0 Replies)
Discussion started by: zxmaus
0 Replies
3. AIX
:cool:Hello,
can someone guide me how to create a GPFS filesystem, I've read a couple of redbooks however certain things are still not certain, like if you require to download files or licenses...
any help would be appreciated! (2 Replies)
Discussion started by: ollie01
2 Replies
4. AIX
Hi,
I have a running GPFS cluster. For one every mountpoint that i have created i have one disk assigned to it. That disk is converted to an NSD and is a part of the GPFS Cluster.
Now i have a new disk and there is this requirement to add it to the GPFS cluster, such that this becomes an NSD.... (1 Reply)
Discussion started by: aixromeo
1 Replies
5. AIX
Hello I am interested if anybody uses GPFS and is it must to have GPFS in the POWERHA environment?
and can GPFS work as cluster active active or active passive
thanks in advance (0 Replies)
Discussion started by: Vit0_Corleone
0 Replies
6. AIX
Dear all
for the last few days i was searching in IBM web site for GPFS 3.3 to upgrade my gpfs from 3.2 to 3.3 and i did not find the download link for the GPFS 3.3 in IBM website please can anyone give me the link . (4 Replies)
Discussion started by: thecobra151
4 Replies
7. AIX
Hi
We are doing the migration of DMX3 disks to DMX4 disks using migratepv. We are not using GPFS but we have gpfs disks present in the server. Can anyone advise how to get rid of GPFS in both the servers cbspsrdb01 and cbspsrdb02. I will do migratepv for the other disks present in the servers... (2 Replies)
Discussion started by: newtoaixos
2 Replies
8. AIX
Hello, I need to test whether our product will work with GPFS filesystems and I have some questions regarding the setup:
1. Do I need to dedicate an entire hard disk if I want to have GPFS on it? Or can I somehow split a disk into 2 virtual disks, and only use 1 for gpfs?
2. If lspv returns... (4 Replies)
Discussion started by: bstring
4 Replies
9. AIX
we have implement GPFS 3.5.0.10 with 4 nodes cluster AIX 6.1 TL8 and they VIO clients , after that we noticed a big delay while we execute any command like mmgetstate -a will take about 2.5 minutes . time mmgetstate -a Node number Node name GPFS state ... (3 Replies)
Discussion started by: thecobra151
3 Replies
10. UNIX for Dummies Questions & Answers
I have two Linux machines, Linux1 and Linux2. They both have two NFS mounts. We'll call them /scratch1 and /scratch2. And they both reside on the same NetApp filer. If I copy a 512Mb file from /scratch1 to /scratch2 while logged on Linux1 it takes 40s. However if I scp this file from... (1 Reply)
Discussion started by: crimso
1 Replies
nfssec(5) File Formats Manual nfssec(5)
NAME
nfssec - overview of NFS security modes
DESCRIPTION
The mount_nfs(1M) and share_nfs(1M) commands each provide a way to specify the security mode to be used on an NFS filesystem through the
option. mode can be either or These security modes may also be added to the automount maps. Note that mount_nfs(1M) and automount(1M) do
not support at this time.
The option on the share_nfs(1M) command line establishes the security mode of NFS servers. If the NFS connection uses the NFS Version 3
protocol, the NFS clients must query the server for the appropriate mode to use. If the NFS connection uses the NFS Version 2 protocol,
then the NFS client uses the default security mode, which is currently NFS clients may force the use of a specific security mode by speci-
fying the option on the command line. However, if the filesystem on the server is not shared with that security mode, the client may be
denied access.
If the NFS client wants to authenticate the NFS server using a particular (stronger) security mode, the client wants to specify the secu-
rity mode to be used, even if the connection uses the NFS Version 3 protocol. This guarantees that an attacker masquerading as the server
does not compromise the client.
The NFS security modes are described below. Of these, the modes use the Kerberos V5 protocol for authenticating and protecting the shared
filesystems. Before these can be used, the system must be configured to be part of a Kerberos realm.
Use authentication. The user's UNIX user-id and group-ids are passed in the clear on the network, unauthenticated by the NFS server
. This is the simplest security method and requires no additional administration. It is the default used by HP-UX NFS Version 2
clients and HP-UX NFS servers.
Use a Diffie-Hellman public key system
which is referred to as in the forthcoming Internet RFC).
Use Kerberos V5 protocol to authenticate users before granting access
to the shared filesystem.
Use Kerberos V5 authentication with integrity checking (checksums) to
verify that the data has not been tampered with.
User Kerberos V5 authentication, integrity checksums, and privacy protection
(encryption) on the shared filesystem. This provides the most secure filesystem sharing, as all traffic is encrypted. It should
be noted that performance might suffer on some systems when using depending on the computational intensity of the encryption
algorithm and the amount of data being transferred.
Use null authentication
NFS clients using have no identity and are mapped to the anonymous user by NFS servers. A client using a security mode other
than the one with which an HP-UX NFS server shares the filesystem has its security mode mapped to In this case, if the filesystem
is shared with users from the client are mapped to the anonymous user.
WARNINGS
lists the NFS security services. Do not edit this file. It is not intended to be user-configurable.
FILES
NFS security service configuration file
SEE ALSO
automount(1M), mount_nfs(1M), share_nfs(1M), rpc_clnt_auth(3N), secure_rpc(3N), nfssec.conf(4).
nfssec(5)