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DART 5.6.49.3 with 2xdatamover- how configure nics and devices for fast response in CIFS
hello i have a dilema how to configure my nics for CIFS service, having 2 datamovers en primary-standby mode,
my doubt is how to configure my 4 phisical nics of the primary datamover, in order to have best performance,
1. use them individually
2. use them with fsn1(cge0 and cge1) and fsn2(cge2 andd cge3)
3. use them with link agregation option
wich of these option could be the fastest mode to have best performances for only 1 CIFS server.
any suggest
if i choose 3, how to configure the switches, is there any guide from powerlink to do this.?
it is going very dificult finding guides about this.
if i choose 1 how to use all of them individually just for 1 CIFS server?
MC
dynamox
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September 9th, 2010 14:00
whatever you do for primary datamover has to configured identically for standby (celerra and switch side)
This is my config:
1) cge0,cge1,cge2 - connect to network switch 1 - LACP is enabled on the switch for these 3 connections. On Celerra side i configure these 3 into an LACP trunk
2) cge3 - connects to network switch 2 - nothing is done on Celerra
next i combine LACP trunk (that was created in step 1) with cge3 and form FSN device where trunk is listed as my primary interface.
Hopefully that makes sense.
Rainer_EMC
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September 9th, 2010 00:00
I would use option 2 (both fsn and trunking) if I had two switches and cared that my CIFS server is still working if one switch fails
If you don't have two switches or all your clients are connected through one switch it's a moot point
you won't find much on Powerlink how to configure your switch - you really need to look at your switch vendors docs for EtherChannel or LACP - it's pretty straightforward
Rainer
dynamox
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September 9th, 2010 10:00
i did FSN that consists of LACP (primary connection): cge0,cge1,cge2 and regular cge3. My position is that i would like to give my users as much connectivity as possible with the caution that if the network switch that has LACP connection dies, they will be running in "degraded" mode on cge3 only.
Rainer_EMC
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September 9th, 2010 12:00
good choice
jelucho
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September 9th, 2010 13:00
in your choice,
how the nics work just 1 primary and the others 3 in standby mode, is not clear to me
other thing making redundancy from the switch side,
how could you connect them with 2 ethernet switches,
is it necesary work with 2 switches yes or no and why?
any sugestion
could be this work?
standby datamover --------------------- primary datamover
cge0 ----- cge1 ----- cge2 ----- cge3 cge0 ------ cge1 ------ cge2 ------ cge3
| | | | | | | |
sw2p1 sw1p1 sw2p3 sw1p3 sw1p1 sw2p2 sw1p3 s2wp3
how could you configure FSN and LACP with two switches is it posible yes or not.
thank you
Maynor
jelucho
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September 9th, 2010 22:00
questions:
when configuring LACP on every port that is going to be used
the first three ports cge0,cge1,cge2 have traffic at the same time?
converting this connection in a 3Gb interface is it correct?
other thing following your configuration
you mean that at the switch2 side, there is going to be only 2 conections coming from primary and standby datamovers?
thank you
mc
dynamox
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September 10th, 2010 03:00
yes, they will have traffic at the same time but think of it as a 3 x 1G lane autobahn. No one car can drive at 3G but 3 cars can drive at 1G concurrently .
yep, 6 connections on switch 1 and 2 connections on switch 2.
jelucho
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September 10th, 2010 06:00
thnks you
now see about this new config i am thinking
from primary datamover all 4 port configured in LACP mode connected to switch-1 and
from standby datamover all 4 port connected to switch-2, all of this, in order of getting the most performance connectivity,
is it valid?
what could be the risks?
my questions are in this new config:
1. if one port from a primary datamover or one port used for LACP of switch-1 gets failed, does the standby DM takes personality of primary DM?
2. what could happend if entire switch-1 failed, does the standby datamover takes personality of primary DM too.
thanks
Rainer_EMC
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September 10th, 2010 07:00
network failure is NOT a trigger for automatic failover
jelucho
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September 17th, 2010 08:00
yesterday, following steps to configure LACP on my existing NAS, in order to get more performance.
from server_2 datamover my ports were connected to a cisco 3560g switch.
firts before changes, i have a CIFS server with a VDM, with a fsn device like this (cge0-primary, cge1-standby)
i test my conection tranfering a cd image of 725 Megas of size, and the transfer were made in 1:15 minutos
from a client computer to a share folder
then i reconfigure the conection, to LACP with and interface like this (lacp01=cge0,cge1,cge2), and configuring the switch with
a etherchannel lacp group1 (including 3 ports, to connect cge0,cge1,cgd2).
With all reconfigure done.
i made the same tranfers test, but it takes de same time, !!!!! whats the reason, or is there something wrong.
i spect at least minize the tranfer to 30 seconds. but unfortunately it was not so
any idea.
mc
dynamox
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September 17th, 2010 10:00
you have one tcp connection, meaning you are only using one of those 1G lanes. Try the same test with 3 different workstations.