Snapserver 2200 transfer very slow

gwengalon · 01-07-2007, 07:07 AM

Hello,

I 've a Quantum Snapserver 2200 (it had never been use before), with os 3.4.790, bios 3.4.758 and HW 2.0.4.
File transfer is very slow, i'm connected to an ethernet 10/100 usrobotic router/switch.

Yesterday, i upgrade snapos to 4.0.830 and after 4.0.860 upg, but file transfer is always slow. (~ 190 KB/s).
Today, i change one of the too disk, then transfer was ~ 230 KB/s on the new one., i try with individual disk, raid 0, raid 1.
On debug menu i change ethernet parameters speed and fullduplex, but no change.

is somebody have an idea.

thank's

gwengalon · 01-07-2007, 07:27 AM

Hello,

I try now with dos ftp command, and the transfert was 6146.48 KB/s
it seems to be a problem with SMB protocol.

blue68f100 · 01-07-2007, 10:38 AM

SMB is handled through SAMBA. The reason for the slower transfer. FTP will allways be faster, even between 2 pc's. If you are in RAID 1 (recommended) write speeds will be slower around 4MB/s, reads will be faster (~6MB/s), drag and drop (SMB).

Your max for a 100baseT is 12.5 theory actual ~10.5. If you have a old router it could also be limiting your speeds. The speeds I posted were from a old SMC router, have not retested with my current system.

AV programs can also slow thing down too, if it's scanning every thing you transfer (in & out). And if it's Norton, it's slowing your whole computer down.

If you need full bandwidth move up to the RAID 5 units.

snap-tech · 01-09-2007, 11:58 PM

While I was still supporting snap I did extentsive testing on transfer speeds and found that the following items can cause slow trasfer rates:

make sure everything is matched as in speed being forced. If you force the snap to 100 full, but you don't force your nic card to 100 full, it can cause issues. also goes in reverse. Also, goes for the switch/router if it has the capability of being forced through configuration menu.

I would sit down and spend a few hours doing nothing but playing with the snap eithernet, and your nic, and the switch. Even remove the switch from the test and use a crossover cable.

I am sure you will be supprised at what you find durring all these tests.

Douglas

snap-tech · 01-10-2007, 12:13 AM

I was just going through some of my old emails and found the following:

{
it does appear that the problem is a known issue with the Snap. With some switches we refuse to go to 100 full when the switch is set to 100 full vs. auto. The work arounds were explained and no fault on Snap's part was admitted. The work arounds were the addition of a hub between the Snap and the switch or forcing the switch to Auto vs. 100 full. It looks like these were tried and successful in getting the speed to a more acceptable level.
}

Also, you need to reboot snap after ever change you make when playing with nic card. You also need to reboot the pc when you make changes.

Oh, and go to the view network settings and look at the very bottom of page to see if the snap actually made the change to what ever you tried to set it at.

Douglas Snap-Tech

01-07-2007, 07:07 AM	#1
gwengalon Cooling Neophyte Join Date: Jan 2006 Location: PARIS Posts: 3	Snapserver 2200 transfer very slow Hello, I 've a Quantum Snapserver 2200 (it had never been use before), with os 3.4.790, bios 3.4.758 and HW 2.0.4. File transfer is very slow, i'm connected to an ethernet 10/100 usrobotic router/switch. Yesterday, i upgrade snapos to 4.0.830 and after 4.0.860 upg, but file transfer is always slow. (~ 190 KB/s). Today, i change one of the too disk, then transfer was ~ 230 KB/s on the new one., i try with individual disk, raid 0, raid 1. On debug menu i change ethernet parameters speed and fullduplex, but no change. is somebody have an idea. thank's Last edited by gwengalon; 01-08-2007 at 03:31 AM.

01-07-2007, 07:27 AM	#2
gwengalon Cooling Neophyte Join Date: Jan 2006 Location: PARIS Posts: 3	Re: Snapserver 2200 transfer very slow Hello, I try now with dos ftp command, and the transfert was 6146.48 KB/s it seems to be a problem with SMB protocol.

01-07-2007, 10:38 AM	#3
blue68f100 Thermophile Join Date: Jul 2005 Location: Plano, TX Posts: 3,135	Re: Snapserver 2200 transfer very slow SMB is handled through SAMBA. The reason for the slower transfer. FTP will allways be faster, even between 2 pc's. If you are in RAID 1 (recommended) write speeds will be slower around 4MB/s, reads will be faster (~6MB/s), drag and drop (SMB). Your max for a 100baseT is 12.5 theory actual ~10.5. If you have a old router it could also be limiting your speeds. The speeds I posted were from a old SMC router, have not retested with my current system. AV programs can also slow thing down too, if it's scanning every thing you transfer (in & out). And if it's Norton, it's slowing your whole computer down. If you need full bandwidth move up to the RAID 5 units. __________________ 1 Snap 4500 - 1.0T (4 x 250gig WD2500SB RE), Raid5, 1 Snap 4500 - 1.6T (4 x 400gig Seagates), Raid5, 1 Snap 4200 - 4.0T (4 x 2gig Seagates), Raid5, Using SATA converts from Andy Link to SnapOS FAQ's http://forums.procooling.com/vbb/showthread.php?t=13820

01-09-2007, 11:58 PM	#4
snap-tech Cooling Neophyte Join Date: Mar 2002 Location: Washington State Posts: 54	Re: Snapserver 2200 transfer very slow While I was still supporting snap I did extentsive testing on transfer speeds and found that the following items can cause slow trasfer rates: make sure everything is matched as in speed being forced. If you force the snap to 100 full, but you don't force your nic card to 100 full, it can cause issues. also goes in reverse. Also, goes for the switch/router if it has the capability of being forced through configuration menu. I would sit down and spend a few hours doing nothing but playing with the snap eithernet, and your nic, and the switch. Even remove the switch from the test and use a crossover cable. I am sure you will be supprised at what you find durring all these tests. Douglas

01-10-2007, 12:13 AM	#5
snap-tech Cooling Neophyte Join Date: Mar 2002 Location: Washington State Posts: 54	Re: Snapserver 2200 transfer very slow I was just going through some of my old emails and found the following: { it does appear that the problem is a known issue with the Snap. With some switches we refuse to go to 100 full when the switch is set to 100 full vs. auto. The work arounds were explained and no fault on Snap's part was admitted. The work arounds were the addition of a hub between the Snap and the switch or forcing the switch to Auto vs. 100 full. It looks like these were tried and successful in getting the speed to a more acceptable level. } Also, you need to reboot snap after ever change you make when playing with nic card. You also need to reboot the pc when you make changes. Oh, and go to the view network settings and look at the very bottom of page to see if the snap actually made the change to what ever you tried to set it at. Douglas Snap-Tech

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