1. tfewster35,975
2. yuzh30,570
3. woolmilkp...24,850
4. omarfarid19,100
5. gheist9,070
6. nemws16,000
7. mrjoltcola5,680
8. Lensters5,045
9. medvedd5,000
10. JJSmith4,800
11. flow014,750
12. Tintin4,520
13. andyalder4,400
14. Muhamma...4,150
15. markgeer4,000
15. climbgunks4,000
17. schwertner3,852
18. liddler3,000
18. evilrix3,000
18. Adam3143,000
21. ozo2,620
22. apitbajpai2,500
22. simon32702,500
24. amit_g2,400
24. sdstuber2,400

1. yuzh136,655
2. tfewster114,612
3. omarfarid63,010
4. gheist41,568
5. Tintin37,706
6. woolmilkp...29,410
7. chris_cal...26,089
8. ahoffmann24,292
9. JustUNIX23,270
10. JJSmith19,325
11. ozo18,826
12. amit_g18,598
13. sunnycoder13,916
14. robocat10,300
15. giltjr9,964
16. schwertner7,602
17. Kdo7,444
18. Adam3147,000
19. evilrix6,996
20. blu6,275
21. nemws16,000
22. sjm_ee5,950
23. Panjandrum5,852
24. mrjoltcola5,680
25. dragulj5,500
25. mass26125,500

	[x] Posted via EE Mobile
	Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.

01/21/2008 at 09:10PM PST, ID: 23100236

	[x] Attachment Details

[x]

The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

The Grade of the Solution
The Zone Rank of the Expert Providing the Solution
The Number of Author and Expert Comments
The Number of Experts Contributing
The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

7.5

slow file transfer over NFS

Asked by td_miles in HP-UX Unix, NFS File Server, Backup & Restore Software

I have two HPUX boxes. They are on seperate subnets with a router between them.

I am trying to replicate some files from one box (old server) to another box (new server).

The process I am doing is as follows:

1. On old box, export the directory (exportfs -i -o root=newbox /dbs)
2. On new box, mount the directory (mount oldbox:/dbs /mnt/dbs)
3. On new box, copy data using rsync (/usr/local/bin/rsync -avP /mnt/dbs/ /oldbox/dbs)

The problem is that the file copy is EXTREMELY slow.

If I look at a file that is copying now with rsync, it shows:

qad.cpio.Z
27033600 78% 17.43kB/s 0:07:14

which shows that it's done 27MB (which is 78% of the file) at the rate of 17.43kB/s and the time remaining is 7 mins, 12 secs.

If I look at the interface on the router between the two subnets, it shows a transfer rate of approx 2.5Mbit/s through the interfaces.

I'm further constrained by the fact that what I really want to copy off is a Progress DB file and I have a limited window to do this when the DB is shutdown for backups during the night (about 90 mins). If I'm reading it correctly, the DB file is about 200MB in size:

du -k mfg.d1
200000 mfg.d1

At the rate of 17kB/s it's going to take forever.

So my question is, how would you suggest a better way of copying the data from old box to new. I don't have space on the old box to create a TGZ file and copy that across.

An option might be to restore the database from tape to the other server ? Is there a way to restore from tape to an NFS mount ? The tape drive in the old server is DDS3, so I would have to restore from the tape across the network to the new server.

edit: A transfer that I let run has just finished. The results are:

sent 540317467 bytes received 268708 bytes 69569.03 bytes/sec
total size is 586467374 speedup is 1.08

Which shows a transfer rate of just under 70KBytes/sec over the whole transfer (584MB)

View the Solution FREE for 30 Days

20091111-EE-VQP-91 / EE_QW_2_20070628

slow file transfer over NFS

Asked by td_miles in HP-UX Unix, NFS File Server, Backup & Restore Software

About this solution