[Samba] Performance Increase Suggestions

[Robert Adkins II]

Noel,

	I would take Journaling over performance any day of the week.
You can always find ways to increase performance, given enough time. 

	However, even with battery back-ups if the power supply dies, I
want to be back up and running after replacing the power supply almost
immediately, not after having to hammer away at fixing broken inodes.
(Which can take quite a while longer...)

Regards,
Robert Adkins II
IT Manager/Buyer
Impel Industries, Inc.
586-254-5800


-----Original Message-----
From: Noel Kelly [mailto:nkelly at citrusnetworks.net] 
Sent: Tuesday, March 18, 2003 10:49 AM
To: 'Robert Adkins II'; samba at lists.samba.org
Subject: RE: [Samba] Performance Increase Suggestions

Or you could just switch the filesystems to ext2?

I believe this is just a case of changing your mount options in fstab
and I
think this is what John was alluding to earlier - ext3 adds a lot of
baggage
to the ext2 structure which slows it down quite considerably.  Reiser
and
XFS were designed from the bottom up so make the journalling less of a
performance issue.

I guess it depends if you want to lose the journalling to gain
performance?

HTH
Cheers,
Noel

-----Original Message-----
From: Robert Adkins II [mailto:radkins at impelind.com]
Sent: 18 March 2003 15:15
To: Noel Kelly; samba at lists.samba.org
Subject: RE: [Samba] Performance Increase Suggestions


Noel,

	I had already checked the NIC and found VERY acceptable errors.
In over 2GBs of data transferred since my last scheduled maintenance
reboot, there has only been 3 errors and 1 overrun. Which to me, is
negligible as far as errors go.

	I have a sinking suspicion, that I am none to happy about, that
I will need to compile a kernel with ReiserFS support, move ALL the data
off of the Samba share, rebuild that partition with ReiserFS, recreate
all the file permissions and then copy all of the data back over.

	This will of course take a few weeks, as I will need to run
plenty of tests on the "spare" server and I only have a few hours
available each week to work up such changes.

	Well, so much for the "quick" and simple fix.  

Regards,
Robert Adkins II
IT Manager/Buyer
Impel Industries, Inc.
586-254-5800


-----Original Message-----
From: Noel Kelly [mailto:nkelly at citrusnetworks.net] 
Sent: Tuesday, March 18, 2003 9:41 AM
To: 'Robert Adkins II'; samba at lists.samba.org
Subject: RE: [Samba] Performance Increase Suggestions

Just a thought, but I would check for errors on your NIC with ifconfig.
Read times might still be quite good whilst write times are shot if
there
are network errors I have found.

Noel


Without spending money, are there any other methods
through which I can dramatically increase the network write performance?

Regards,
Robert Adkins II
IT Manager/Buyer
Impel Industries, Inc.
586-254-5800



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