- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- StoreEasy Storage
- >
- Re: NAS 1000s NFS problem
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-22-2004 03:23 AM
тАО06-22-2004 03:23 AM
The client side hangs and I have to do a forced unmount for it to recover.
Solved! Go to Solution.
- Tags:
- NFS
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-06-2004 08:07 AM
тАО07-06-2004 08:07 AM
Re: NAS 1000s NFS problem
I have some questions and a few suggestions:
1) Does the hang occur immediately when you start the copy, or does it hang sometime during the copy?
2) What client OS are you running (i.e. Redhat x.x, HP-UX, et)?
3) Did you map the users and groups? If so, can you run: mapadmin list -all and post the output to the forum?
4) If you are using the user root, make sure you have set it to allow root access.
5) Make sure you install the latest patches as listed at: http://h18023.www1.hp.com/support/files/server/us/locate/73_5622.html especially SAK 2.01 Service Pack 1a
-Monty
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-06-2004 08:43 PM
тАО07-06-2004 08:43 PM
Re: NAS 1000s NFS problem
The client OS is RedHat 7.3
The users and groups are mapped using the advanced user mapping and show up if you do a mapadmin -list all
I do use a root access and root acess is allowed
It was after I installed patch Q330032 that this problem occured.
I have just applied Microsoft Windows 2000 service pack 4 and this seems to have cured the problem!!
Having said this the speed of transfer when copying to the NFS share seems very slow.
Is this a further problem?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-07-2004 03:24 AM
тАО07-07-2004 03:24 AM
SolutionGlad to hear SP4 resolved the hang issue.
I have seen slow performance issues with RedHat 7.3 systems and have been able to greatly increase performance by using the mount options: mount -t nfs -o tcp,rsize=32768,wsize=32768 host:/share /mount-point
For example, some of my test results:
Test #1 -- default mount options (i.e. mount
=========
-- cp /data/testnfs.tar /hp/testnfs.tar
-- time it took for 2GB file copy: 82m13.626s
Test #2 -- mount with 32K block size
=======
-- cp /data/testnfs.tar /hp/testnfs.tar
-- umounted nfs share and mounted with the following options:
mount -t nfs -o tcp,rsize=32768,wsize=32768 15.27.101.64:/maxtor /maxtor
-- time it took for 2GB file copy: 4m7.663s <------ Huge Difference
Usually, this behavoir is seen in the /var/log/messages with the errors:
kernel: nfs: server server.domain.name not responding, still trying
kernel: nfs: task 10754 can't get a request slot
kernel: nfs: server server.domain.name OK
Later versions of Redhat do not seem to have this issue.
Let me know how it goes.
- Monty
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-08-2004 01:38 AM
тАО07-08-2004 01:38 AM
Re: NAS 1000s NFS problem
I have tried the rsize and wsize values you suggested.
This has increased the performance a great deal. Thanks!!
I am now managing to transfer 290Mbytes in 10 minuites. This still seems slower than your quoted figures but I guess it depends upon the types of files you are transferring.
I am considering using the nfsonly.exe option on the nfs share to try and speed it up a little more.
Do you think think this is a good idea?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-08-2004 08:11 AM
тАО07-08-2004 08:11 AM
Re: NAS 1000s NFS problem
I'm glad to hear those mount options helped. If this share will only be used for NFS, then I would recommend using the NFS Only option. Also, you are correct about the type (especially the size of the files) can make a difference in performance.
The NFS Only option provides faster NFS performance and is intended for NFS clients only. The executable file, nfsonly.exe, allows a share to be modified to do more aggressive caching to improve NFS performance. This option can be set on a share-by-share basis. Do not use this function on any file share that can be accessed by any means other than by NFS clients, as data corruption can occur.
Also note that the NFS service must be restarted after setting up an NFS Only share.