Speed Problems unix/Windows

[GuidoLenk]

hi,

i searched and read, but i did not find any good ideas formy problem...

I have a large filesystem (500G) with many files... usually on a FC-RAID directly at my solaris box. Due to a crash i had to temporarily move the files to my Windows-NAS...

Now on the NAS i have inacaptable backup-speed (it sometimes drops below 5K/sec!).

I did not do a bigasm test because when it saves a directory with few big files, it runs at normal speed (5-10MB/sec).

i guess the windows-client has a big performance-problem with many small files?

Could anyone help me please?

Cheers
Guido

 

[GuidoLenk]

i forgot to mention my specs:

1 solaris8 box is Nw-server (6.1) this is storage node as well. it has 100MBit nic.

1 got two tape libararies

windows-Client is Windows2000 (Powered, DELL NAS) and has a GBit nic

I have no Speed-Problems on the windows-machine itself, under normal copy (even to unix) it has normal speed.

another thing: The Group is after a time aborted due to inactivity... but tape is still writing data... i cannot stop the group because it is not running???

a full backup runs aprox. 10 days for 500G

i have 2 Million files

 

[605]

The numbers you have result in an avarage file size of about 250kB, this is not too bad, in general. Besides this fact, your description of your scenario is very vague, if not useless. Sorry. I just can guess that the NAS server also acts as a Storage Node. If not, you must have two jukeboxes connected to the NW server, which is pretty useless if you have the majority of your files (500GB !) on a remote client. This is the first thing i would change if this is really true.

However, in general, i would suggest to run snapshot backups that really help in this case because they do image backups. SnapImage 2.0 for Windows is really easy to install and to use.


To stop the group simply run
ps -ef|grep savegrp ------> look at the pid
kill #pid