Exchange DAG Replication Data Rate

i need some information regarding DAG replication issue. In my environment there is two mailbox server. One DC and another in DR site. The connectivity between DC and DR site is VPN. Bandwidth is one MB. But in VPN connection have ping loss. The ping loss rate
1-2%. In my environment twodatabase.
one is single and another is under the dag member. when i move mailbox from single to dag database the move rate is so slow and sometimes database going to dismount. I think its happened as because connectivity issue.
Can you please suggest the details about dag replication. I need to know that: what is dag replication
data rate? also the acceptable rate of ping loss and How much rate connectivity between DAG Heartbeat connection.
Please suggest as soon as possible.
Thanks,
Parvez

Hi Parvez,
From your description, I would like to clarify the following things:
1. It is not recommended to install Exchange server on DC.
2. The witness server is needed when there's an even number of members in the DAG. Based on your case, you need a file share witness server.
3. The DAG replication rate depends on the replication traffic.
4. By default, heartbeat frequency (subnet delay) is 1000ms for both local and remote subnets. When a node misses 5 heartbeats (subnet threshold) another nod within your DAG cluster will initiate a failover.
What's more, here are some helpful threads for your reference.
Planning for High Availability and Site Resilience
http://technet.microsoft.com/en-us/library/dd638104(v=exchg.150).aspx
Exchange 2010: Collapsing DAG Networks
http://blogs.technet.com/b/timmcmic/archive/2011/09/26/exchange-2010-collapsing-dag-networks.aspx
Hope my clarification is helpful.
Best regards,
Amy
Amy Wang
TechNet Community Support

Similar Messages

Need to know how to calculate and allocate the server side bandwidth between two exchange sites for DAG replication

Hi All,
Please have a look in to the below mentioned environment.
primary site :SITE 1
server 1
server 2
secondary site :SITE 2
server 3
Note : All the above three servers are in single DAG .All the database are mounted on the server (server 1) which is located in the primary site (I.E SITE 1).
On that 5 databases we are having 3500 users .Based on the user designation we have allocated the mailbox size.
Query : Each and every day we are having the large no copy queue length for all the five databases to the server located in SITE 2.
Please help me out on this and also tell me is there any tool available to exactly get the required bandwidth for the exchange servers located between the active directory sites.
Thanks & Regards S.Nithyanandham

I don't know of any tool that can calculate things for you but latency is the biggest thing you have to worry about. The other issues is looking at the network gear between the 2 sites. I have seen many times were switches get maxed out if they are set to
1 GB or even ports getting maxed out and need to bonded for more throughput. Test your latency from the edge of each site then test it within to see if there is a difference.
Regardless of their geographic location relative to other DAG members, each member of the DAG must have round trip network latency no greater than 500 milliseconds between each other member.
As the round trip latency between two Mailbox servers hosting copies of a database increases, the potential for replication not being up to date also increases. Regardless of the latency of the solution, customers should validate that the networks between
all DAG members is capable of satisfying the data protection and availability goals of the deployment. Configurations with higher latency values may require special tuning of DAG, replication, and network parameters, such as increasing the number of databases
or decreasing the number of mailboxes per database, to achieve the desired goals.
Round trip latency requirements may not be the most stringent network bandwidth and latency requirement for a multi-datacenter configuration. You must evaluate the total network load, which
includes client access, Active Directory, transport, continuous replication, and other application traffic, to determine the necessary network requirements for your environment.
http://technet.microsoft.com/en-us/library/dd638104(v=exchg.150).aspx
DJ Grijalva | MCITP: EMA 2007/2010 SPA 2010 | www.persistentcerebro.com

Microsoft Exchange Mailbox Replication service was unable to process jobs in a mailbox database 1006.

HI all,
I ran into a problem with one of the servers in my DAG. Due to a backup failure, the log partition filled up and the Exchange database went offline on this particular server. The DAG continued to function on the other server. So this particular
DB01 had only some test accounts in it so I removed the database copy. Unfortunately the removal must not have completed correctly.
After recovering the needed space in the partition, I tried to recopy the database and it failed. So I deleted the entire database from the active server and it successfully removed it from the active server. Now on both the servers the database
is not showing, however I'm receiving the error below which indicates to me that the service still thinks the database exists. I am also getting event 4113 Database redundancy health check failed for the database copy as it shows there is only one copy
of the database (failed redundancy) but there should be zero copies.
This database no longer exists in AD as I have verified this with ADSI so it must have something on the exchange server that is still telling the service the database exists.
Can you point me to the location to clean this up?
Log Name:      Application
Source:        MSExchange Mailbox Replication
Date:          02/25/2011 2:00:07 PM
Event ID:      1006
Task Category: Service
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      email1.domain.com
Description:
The Microsoft Exchange Mailbox Replication service was unable to process jobs in a mailbox database.
Database: DB01
Error: MapiExceptionUnknownUser: Unable to open message store. (hr=0x80004005, ec=1003)
Diagnostic context:
    Lid: 55847   EMSMDBPOOL.EcPoolSessionDoRpc called [length=243]
    Lid: 43559   EMSMDBPOOL.EcPoolSessionDoRpc returned [ec=0x0][length=200][latency=0]
    Lid: 23226   --- ROP Parse Start ---
    Lid: 27962   ROP: ropLogon [254]
    Lid: 17082   ROP Error: 0x3EB
    Lid: 26937
    Lid: 21921   StoreEc: 0x3EB
    Lid: 27962   ROP: ropExtendedError [250]
    Lid: 1494    ---- Remote Context Beg ----
    Lid: 26426   ROP: ropLogon [254]
    Lid: 22086
    Lid: 27206
    Lid: 17990
    Lid: 16966   StoreEc: 0x8004010F
    Lid: 31433   StoreEc: 0x8004010F
    Lid: 8620    StoreEc: 0x3EB
    Lid: 1750    ---- Remote Context End ----
    Lid: 26849
    Lid: 21817   ROP Failure: 0x3EB
    Lid: 26297
    Lid: 16585   StoreEc: 0x3EB
    Lid: 32441
    Lid: 1706    StoreEc: 0x3EB
    Lid: 24761
    Lid: 20665   StoreEc: 0x3EB
    Lid: 25785
    Lid: 29881   StoreEc: 0x3EB
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="MSExchange Mailbox Replication" />
    <EventID Qualifiers="32772">1006</EventID>
    <Level>3</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2011-02-25T22:00:07.000000000Z" />
    <EventRecordID>181576</EventRecordID>
    <Channel>Application</Channel>
    <Computer>email1.domain.com</Computer>
    <Security />
</System>
<EventData>
    <Data>DB01</Data>
    <Data>MapiExceptionUnknownUser: Unable to open message store. (hr=0x80004005, ec=1003)
Diagnostic context:
    Lid: 55847   EMSMDBPOOL.EcPoolSessionDoRpc called [length=243]
    Lid: 43559   EMSMDBPOOL.EcPoolSessionDoRpc returned [ec=0x0][length=200][latency=0]
    Lid: 23226   --- ROP Parse Start ---
    Lid: 27962   ROP: ropLogon [254]
    Lid: 17082   ROP Error: 0x3EB
    Lid: 26937
    Lid: 21921   StoreEc: 0x3EB
    Lid: 27962   ROP: ropExtendedError [250]
    Lid: 1494    ---- Remote Context Beg ----
    Lid: 26426   ROP: ropLogon [254]
    Lid: 22086
    Lid: 27206
    Lid: 17990
    Lid: 16966   StoreEc: 0x8004010F
    Lid: 31433   StoreEc: 0x8004010F
    Lid: 8620    StoreEc: 0x3EB
    Lid: 1750    ---- Remote Context End ----
    Lid: 26849
    Lid: 21817   ROP Failure: 0x3EB
    Lid: 26297
    Lid: 16585   StoreEc: 0x3EB
    Lid: 32441
    Lid: 1706    StoreEc: 0x3EB
    Lid: 24761
    Lid: 20665   StoreEc: 0x3EB
    Lid: 25785
    Lid: 29881   StoreEc: 0x3EB     </Data>
</EventData>
</Event>

Hi
This error occurs because the MailboxReplicationService (MRS) currently caches Mailbox Database information past the lifetime of some databases.
Restarting the service will clear the cache.
Maybe it is the simplest way to solve it.
If it doesn’t work, you can try cmd to check it.
Get-MailboxDatabase : Can you find the database which you delete?
Remove-MailboxDatabase -Identity "MyDatabase": You can try to delete database if you can see the database.

Site Link Flooded By DAG Replication Traffic

Hi everyone,
I have a quick question regarding DAG replication. We have a DAG that stretches two sites (one site is the primary site and the other site is strictly DR). The WAN link is 150 Mbps, and we have
encoutered some issues with the network being over-saturated by bursts from the Exchange servers on the replication networks.
The manager of the Engineering team informed me of this today. Apparently this has been going on for a while, but they just discovered the cause recently. He asked about policing/rate-limiting
on traffic destined to the IP at the DR site to 100 Mbps. My understanding is that this would cause packets to drop if they go over 100 Mbps.
Now, I understand how TCP fundamentally works, and that the DAG utilizes TCP (default port 64327), so I would
like to think this wouldn't be an issue, but I wanted to open a dialog here anyway to see if anyone else has encountered anything like this, and if so, if problems arose.
As an aside, I am running Exchange 2010 SP2 (yeah, I know...hopefully going to SP3 next month). There are four total mailbox servers (three at the main site and one at the DR site). And yes,
I have collapsed my DAG networks (MAPI, Replication, Backup).
Any insight is welcome.
Thanks in advance!

Thank you, Jared and Jim.
Yes, I figured that at worst my databases at my DR site may simply fall behind a bit, but I don't think it will be by too much, as it doesn't run that high all the time.
The manager of the engineering team is scheduling up a change for Tuesday morning to effectively limit the traffic on Tuesday morning. I'll monitor it for a few days and let you guys know how it is behaving.
Thanks again and have a great weekend!

Use DPM to backup Exchange DAG can not see the database

Hi，
I want to use DPM to backup Exchange DAG, but when I create the protection group, I can't open the dag to choose the database.
If somebody can tell me what's wrong with it? How to troubleshoot this problem?
The version of DPM is 2012 sp1,and the version of Exchange is 2013.
I'm sorry that I could just provide a picture in Chinese.
I received this event on the DPM Server：
Log Name:      System
Source:        Microsoft-Windows-DistributedCOM
Event ID:      10016
Description:
The application-specific permission settings do not grant Remote Launch permission for the COM Server application with CLSID {CC7D8A18-C386-48D5-9906-4FFC77A39788} to the user DOMAIN\DC$ SID (S-1-5-21-3005733532-2211877466-3700573520-15394).
This security permission can be modified using the Component Services administrative tool.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Microsoft-Windows-DistributedCOM" Guid="{1B562E86-B7AA-4131-BADC-B6F3A001407E}" EventSourceName="DCOM" />
    <EventID Qualifiers="0">10016</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8080000000000000</Keywords>
    <TimeCreated SystemTime="2014-04-08T08:25:20.222501400Z" />
    <EventRecordID>2715</EventRecordID>
    <Correlation />
    <Execution ProcessID="856" ThreadID="2380" />
    <Channel>System</Channel>
    <Computer>DPMSERVER.domain.local</Computer>
    <Security UserID="S-1-5-21-3005733532-2211877466-3700573520-15394" />
</System>
<EventData>
    <Data Name="param1">application-specific</Data>
    <Data Name="param2">Remote</Data>
    <Data Name="param3">Launch</Data>
    <Data Name="param4">{CC7D8A18-C386-48D5-9906-4FFC77A39788}</Data>
    <Data Name="param5">{A3B9D3F4-2477-4F95-B2D1-F75B0FDF2A0E}</Data>
    <Data Name="param6">DOMAIN</Data>
    <Data Name="param7">DC$</Data>
    <Data Name="param8">S-1-5-21-3005733532-2211877466-3700573520-15394</Data>
    <Data Name="param9">172.16.103.3</Data>
    <Data Name="param10">Unavailable</Data>
    <Data Name="param11">Unavailable</Data>
</EventData>
</Event>
Kindly clarify me, Thanks in advance.
thorne

Hi,
please take a look at this:
http://social.technet.microsoft.com/Forums/en-US/0d876796-cef4-4ec4-a76e-dcda8c0bcea8/dpm-2012-sp1-protecting-exchange-2010-and-exchange-2013-at-the-same-time?forum=dpmexchbackup
regards
/bkpfast
My postings are provided "AS IS" with no warranties and confer no rights

DAG Replication Network Isolation from MAPI

Hi,
Recently We have implemented Exchange 2010 SP2 DR setup.
We have two sites Prod and DR. We are facing some issue in DAG replication Network (Replication Adapter).
We are using 10.10.10.x for Mapi Networks and 192.168.1.x for Replication Network for Prod and 10.11.10.x for MAPI and 192.168.2.x for Replications.
As per Microsoft recommended, We configured replication adapters and added static routes for Replication Network.
We understand, Replicarion adapter is used for DAG Replication (Log Shipping and Seeding) and configured forewall to allow tonly DAG port 64327 for replication Vlans between sites.
Now, When we check the replication network hit in firewall. Its still using MAPI Network (MAPI Nic) to communication with DR sites. Replication Nics is not working properly.
Please let me know, How to isolate the MAPI and Replication Networks. Do we need configure Replication Port in DAG properties.
How to check whether Replication Network is working between the sites.
Regards
M

My Problem is, While seeding is happening between Primary Site to DR Site. Connections are going only via MAPI Networks. It is not using Replication Netowork. I have added the static route in all the prod and DR Mailbox Servers. But I have not
configured Replication Port in DAG properties. And also, I allowed only Port 64327 for Replication Vlan in both Primary and DR. Please let me know if you have any solutions. Regards M
That's expected if you are just using the EMC, or using standard options via EMS
What happens if you use
http://technet.microsoft.com/en-us/library/dd335201(v=exchg.141).aspx
Update-MailboxDatabaseCopy -Network
and
http://technet.microsoft.com/en-us/library/dd335158.aspx
Managing Mailbox Database Copies
To specify the networks you want to use for seeding, use the Network parameter when running the
Update-MailboxDatabaseCopy cmdlet and specify the DAG networks that you want to use. If you don't use the
Network parameter, the system uses the following default behavior for selecting a network to use for the seeding operation:
If the source server and target server are on the same subnet and a replication network has been configured that includes the subnet, the replication network will be used.
If the source server and target server are on different subnets, even if a replication network that contains those subnets has been configured, the client (MAPI) network will be used for seeding.
If the source server and target server are in different datacenters, the client (MAPI) network will be used for seeding.
Cheers,
Rhoderick
Microsoft Premier Field Engineer, Exchange
Blog:
http://blogs.technet.com/rmilne Twitter:
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Note: My posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

WAP4410N firmware 2.0.4.2 bug: 300Mbps data rate not possible

I've spent parts of the past five days buying and exchanging several WAP4410N units because I was not able to achieve anything close to a 300Mbps data rate. I also tried various wireless-n network cards which were known to be configured correctly for 300Mbps speeds with no luck.
The highest speed I was able to achieve was 130Mbps, which is an indication that channel bonding is not in effect.
Then I came across another post in the forums:
WAP4410N does not exceed 130Mbps in N mode at close range.
where the OP mentions recently upgrading to firmware 2.0.4.2, though not treating that as the cause of his problems.
On a lark, I tried downgrading to both firmware 2.0.2.1 and firmware 2.0.3.3, and to my surprise, I was able to achieve the full 300Mbps data rate with both firmware versions.
When I reverted back to 2.0.4.2, I was not able to achieve the full 300Mbps data rate.
So, right now, I downgraded to firmware 2.0.3.3 so I can get the higher data rate, though there are other quirks to deal with.
Furthermore, when I do a web search of reviews, I can see that the inability to achieve the 300Mbps data rate is a huge source of complaints.
Cisco, please fix this firmware!
Edited to add: I found another post regarding the same phenomenon:
WAP4410n LIMITED TO 130Mbs in N-mode

Hi James,
When I bought the WAP4410N I was still using Vista and a beta of Windows 7 x64. My PC was reporting 300Mbps but I never believed it and just figured this was better then the Linksys Wap54g with DD-WRT. I was only showing 54Mbps on my laptops but the amount of data I could download over a minute was better then the WAP4410N. The best speed I can achieve (but only lasts a few minutes) is 130Mbps from the WAP4410N and downloads are painfully slow. Using a desktop gadget "network meter" on one of my desktop PCs with a wireless N USB adapter it is showing a speed of 54Mbps and a signal strength of 70% at a distance of 4 feet from the WAP4410N. At this distance I also experience interruptions in connection and poor performance. I do not know if my WAP4410N is defective but a beta firmware is to be released this month that is supposed to help. I have had to recommend other brands in this price range to those wishing to buy a stable product as this performance is not acceptable. My network is mostly GigaLan devices and strangely the intelligent switch reports the WAP4410N as running at 100Mbps with the firmware set the 1000Mbps so there is another mystery.
Best regards,
Brad

PST Import to archive mailbox - Stays in queue until i restart the microsoft exchange mailbox replication service

Good Day all,
Stretched dag between site a and site b. Cas array at each site. Mailboxes primarily are located in site a unless there is a major outage then the dag flips to site b. setup two archive databases, one in site A on a non replicated partition
of the dag server and one in site B on a separate mailbox only server.
All exchange servers are patched to the latest sp and rollup.
site a has no issues at all, everything i import queues up and processes with no problems
at site b two imports will process and then stop until i restart the microsoft exchange mailbox replication service on the cas server. No errors no nothing just lots of move request sitting in the queue.
considering i have an insane amount of psts to import there does anyone have any suggestions besides setting up a task to restart the imicrosoft exchange mailbox replication service every 15 minutes?
thanks for your help in advance

Yeah I know from my research when I was setting up the dag you were not a fan of the stretched DAG but it works for us really well and passed all fail over tests that we ran on it <knocking on wood>.
Yes its running but it stops working after one session. I have had success in raising the transfer count from 2 to 5 but I can't really go much higher without taking down the server. the problem is when I am transferring someone with hundreds
of PSTs I have to babysit it...which sucks..
anyway, thanks for your help and have a great day :)

Max Data Rate: AGP 2x?!

Bought myself a new MSI-KT6 Delta a few weeks ago (MSI-6590), and have had no problems until now.
First up, my GeForce 4 Ti 4600 decided to suddenly die. Random characters on the screen in text mode, flickery colours and corrupt pixels everywhere. Windows wouldn't detect it properly anymore.
Bought a new Powercolor Radeon 9600 XT with VIVO today. Downloaded the new drivers, and loaded up some Battlefield, all good. Runs nice and smooth. COD, Quake 3, etc, no problems at all.
Halo, however... BAD. Even with the basic graphics settings and no Pixel-Shading, it runs at 4 frames a second, and nothing I do changes this, from lowest to highest with Pixel-Shaders 2.0. Although there's a visual difference, it's just as slow.
So I loaded up ATI control Panel and used SmartGart to enable 8x and Fast-Writes... Rebooted, lots of flickering screen, and Windows XP is now software-rendering everything (Transparent menus take 100% CPU to fade in)
Wait for SmartGart to fix my graphics again, and it's all back to 4x and no fast-write.
Loaded up SiSoft Sandra, to check the settings in there...
Mainboard: "Max Data Rate: AGP 2x"
AGP Card: "Data Transfer Modes Support: 1x, 2x"
"AGP Bus is unused or AGP card not fully AGP compatible"
Er... should this be right? BIOS wont let me select an AGP speed, it's "Auto" and I can't select it. I'm a little concerned that my Motherboard may have been damaged! I'll go get the latest Halo Patch, but it doesn't change the fact that I can't use 8x or Fast-Write.
I'm a little apprehensive about flashing my BIOS, made more difficult by the fact that I have no working floppy drive.
CPU: AMD 2600+
RAM: 2x512mb DDR 333MHz Kingston
AlphaGremlin

Well, I updated the VIA drivers, and an updated Sandra. AGP is running at 8x, and Fast-Writes are enabled! I don't know what the hell SmartGart was going on about, but it appears to slunk away and disappeared completely from the ATI control panel since the last reinstall of drivers.
So there's one problem solved... but I don't know what's up with Halo... I can set it to the lowest settings and it still runs like an elephant with three legs, even with the -useff option for Fixed Function shaders... ah well, that's a matter for another forum, eh?
Interesting note: Sandra reports my 120gb drive as 605gb... should I be trusting it?
AlphaGremlin

Data rate supported by 6533

Hello,
Can someone tell me what is the data rate supported by PCI 6533. i mean transfer the data from peripheral to the hard disk of the PC.

Hi,
Here are a couple Knowledge Bases that address this performance specification. I just posted the knowledge bases today so they might take a day or so before they are live. Hope that helps. Have a good day.
What Are The Performance Benchmarks For The High-Speed I/O - NI 653x
http://digital.ni.com/public.nsf/websearch/4FCA248D888831C386256D8900563E45?OpenDocument
PCI-6534 pattern input while streaming to disk benchmarks
http://digital.ni.com/public.nsf/websearch/E93C4BA24B0DEC0B86256BC8006AEA0A?OpenDocument
Ron
Applications Engineer
National Instruments

How to achieve high usb data rate with cRIO-9022?

Hi all,
I read the datasheet of NI-9022 and know that USB data rate can be 480Mb/s.
I want to transfer data with rate 3.6MB/s which is much slower than the spec, but the result is time out error.
I check my FPGA and RT code by save to RT disk and the result is pass. So I think my code should be correct.
Is that because the USB driver not installed into RT?
Should I install the USB driver into RT?
Or is there any other issue I haven't find?
Thanks a lot.

According to this document: Data Storage Options for CompactRIO, depending on many conditions, such as complexity of processor
requirements, USB data can be transferred off the controller at
approximately 700 KB/s.
Also, you don't need a driver to get a USB mass storage device to work on the cRIO. Have a look at this document:
Utilizing Features of the USB Port on My cRIO-901x or My cFP-22xx Controller
Not sure if these issues are causing timeout errors. What happens when you transfer data at lower speeds? Do you get timeout errors then?
Adnan Zafar
Certified LabVIEW Architect
Coleman Technologies

I have a question about Data Rates.

Hello All.
This is a bit of a noob question I'm sure. I don't think I really understand Data Rates and how it applies to Motion... therefore I'm not even sure what kind of questions to ask. I've been reading up online and thought I would ask some questions here. Thanks to all in advance.
I've never really worried about Data Rates until now. I am creating an Apple Motion piece with about 15 different video clips in it. And 1/2 of them have alpha channels.
What exactly is Data Rate? Is it the rate in which video clip data is read (in bits/second) from the Disc and placed into my screen? In Motion- is the Data Rate for video only? What if the clip has audio? If a HDD is simply a plastic disc with a dye read by "1" laser... how come my computer can pull "2" files off the disc at the same time? Is that what data transfer is all about? Is that were RAM comes into play?
I have crunched my clips as much as I can. They are short clips (10-15seconds each). I've compressed them with the Animation codec to preserve the Alpha channel and sized them proportionally smaller (320x240). This dropped their data rate significantly. I've also taken out any audio that was associated with them.
Is data rate what is slowing my system down?
The data rates are all under 2MBs. Some are as low as 230Kbs. They were MUCH higher. However, my animation still plays VERY slowly.
I'm running a 3GigRam Powerbook Pro 2.33GHz.
I store all my media on a 1TB GRaid Firewire 800 drive. However for portability I'm using a USB 2 smartdisk external drive. I think the speed is 5200rpm.
I'm guessing this all plays into the speed at which motion can function.
If I total my data rate transfer I get somewhere in the vicinity of 11MBs/second. Is that what motion needs for it to play smoothly a 11MBs/second data connection? USB 2.0 is like what 480Mbs/second. So there is no way it's going to play quickly. What if I played it from my hard drive? What is the data rate of my internal HDD?
I guess my overall question is.
#1. Is my thinking correct on all of these topics? Do my bits, bytes and megs make sense. Is my thought process correct?
#2. Barring getting a new machine or buying new hardware. What can I do to speed up this workflow? Working with 15 different video clips is bogging Motion down and becoming frustrating to work with. Even if only 3-4 of the clips are up at a time it bogs things down. Especially if I throw on a glow effect or something.
Any help is greatly appreciated.
-Fraky

Data rate DOES make a difference, but I'd say your real problem has more to do with the fact that you're working on a Powerbook. Motion's real time capabilities derive from the capability of the video card. Not the processor. Some cards do better than others, but laptops are not even recommended for running Motion.
To improve your workflow on a laptop will be limited, but there are a few things that you can try.
Make sure that thumbnails and previews are turned off.
Make sure that you are operating in Draft Mode.
Lower the display resolution to half, or quarter.
Don't expect to be getting real time playback. Treat it more like After Effects.
Compressing your clips into smaller Animations does help because it lowers the data rate, but you're still dealing with the animation codec which is a high data rate codec. Unfortunately, it sounds necessary in your case because you're dealing with alpha channels.
The data rate comes into play with your setup trying to play through your USB drive. USB drives are never recommended for editing or Motion work. Their throughput is not consistent enough for video work. a small FW drive would be better, though your real problem as I said is the Powerbook.
If you must work on the powerbook, then don't expect real-time playback. Instead, build your animation, step through it, and do RAM previews to view sections in real time.
I hope this helps.
Andy

The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error. Event 1121

Hello all,
We migrated our Exchange server from 2003 to 2010. After the mailbox move requests were finished we had one that was stuck. We basically skipped it as we had a lot of other things to finish over the weekend. Here we are a year later, the old exchange server
is gone and so is an old DC. I am receiving an error every four minutes in event viewer.
The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error.
Request GUID: '3e46b7cb-2ac0-42c1-98e8-57517a19ee40'
Database GUID: '5c6c573b-4f45-4ce3-b296-11cf69c2e2b6'
Error: Unable to find 'OLD Domain Controller' computer information in domain controller 'OLD Domain Controller' to perform the suitability check. Verify the fully qualified domain name..
I have checked in EMC for move requests. None are listed. I have checked the DCs listed in EMC properties. Old DC is not listed.
I also ran these commands in shell to attempt to cancel the stuck request.
Get-MoveRequest -MoveStatus Completed;Pending;InProgress;Failed;CompletedWithWarning;Suspended;Queued;CompletionWithProgress : Remove-MoveRequest
NO changes. Still throwing error. Any suggestions? I also tried using the guid and shell to look at the move request. Systems replies no such request.

Hello,
Please try to restart iis services to check the result.
If the issue persists, I recommend you ping you DC server on your exchange server to check if your exchange server can communicate with your DC server.
If there are other DCs, please try to use set-adserversettings cmdlet to specify a DC for your exchange server.
Set-AdServerSettings
http://technet.microsoft.com/en-us/library/dd298063(v=exchg.150).aspx
Besides, please install the lasted rollup to check the result.
Cara Chen
TechNet Community Support

The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error. : Error: An Active Directory Constraint Violation error occurred

Hello,
We have a multi domain parent child AD domain infrastructure and now we upgraded our exchange from Exchange 2007 to Exchange 2013. Since last few days, we see the below error on the mailbox server event viewer.
EVENT ID : 1121
The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error.
Request GUID: '93a7d1ca-68a1-4cd9-9edb-a4ce2f7bb4cd'
Database GUID: '83d028ec-439d-4904-a0e4-1d3bc0f58809'
Error: An Active Directory Constraint Violation error occurred on <domain controller FQDN>. Additional information: The name reference is invalid.
This may be caused by replication latency between Active Directory domain controllers.
Active directory response: 000020B5: AtrErr: DSID-0315286E, #1:
Our Exchange setup is in parent domain, but we keep on getting this error for various domain controllers in each child domain in the same site. We then configured one of the parent domain domain controller on Exchange. Still we are getting this error for
the configured parent domain DC.
Verified the AD replication and there is no latency or pending stuffs.
Any support to resolve this issue will be highly appreciated. Thank you in advance.
Regards,
Jnana R Dash

Hi,
In addition to Ed's suggestion, I would like to clarify the following things for troubleshooting:
1. Please restart IIS at first.
2. If the issue persists, please ping your DC on your Exchange server to check if Exchange can communicate with DC.
Hope it helps.
Best regards,
Amy Wang
TechNet Community Support

The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error

Since demoting a child domain a few days ago, Exchange 2013 is still trying to contact it and as a result generating errors in the application event logs. I had a similar problem which I solved by removing some old migration batches, now I have a problem
with the Microsoft Exchange Mailbox Replication service.
The event logged is:
The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error.
Request GUID: '0b6c0f5a-0563-48e2-8b97-e0781c6cc69a'
Database GUID: '23258311-ad29-41c2-a842-522f48baa267'
Error: Unable to read from Active Directory. --> The call to Microsoft Exchange Active Directory Topology service on server 'TopologyClientTcpEndpoint (localhost)' returned an error. Error details Unable to find a suitable directory server for
domain 'admin.riddlesdown.local'.. --> Unable to find a suitable directory server for domain 'admin.riddlesdown.local'..
Process Microsoft.Exchange.Directory.TopologyService.exe (PID=2280). Exchange Active Directory Provider could not find an available domain controller in domain admin.riddlesdown.local. This event may be caused by network connectivity issues or
configured incorrectly DNS server.
The domain doesn't exist in AD Sites and Services, I have removed all traces from DNS but this is still occurring. When I run Get-ADServerSettings | fl it reports no trace of the domain or a DC that was previously in it.
How can I stop these events occurring and is it likely to be causing something else not to work correctly.
We are running Exchange 2013 CU1

No, that didn't work. Here are more details:
Source: MSExchange ADAccess (EventID: 2130)
Process Microsoft.Exchange.Directory.TopologyService.exe (PID=2280). Exchange Active Directory Provider could not find an available domain controller in domain admin.riddlesdown.local. This event may be caused by network connectivity issues or configured
incorrectly DNS server.
Source: MSExchange ADAccess (EventID: 2119)
Process Microsoft.Exchange.Directory.TopologyService.exe (PID=2280). Error DNS_ERROR_RCODE_NAME_ERROR (0x8007232B) occurred when DNS was queried for the service location (SRV) resource record used to locate a domain controller for domain admin.riddlesdown.local
The query was for the SRV record for _ldap._tcp.dc._msdcs.admin.riddlesdown.local
Common causes of this error include the following:
- The DNS SRV records required to locate a domain controller for the domain are not registered in DNS. These records are registered with a DNS server automatically when a domain controller is added to a domain. They are updated by the domain controller
at set intervals. This computer is configured to use DNS servers with following IP addresses:
10.59.100.7
10.59.100.8
fec0:0:0:ffff::1Microsoft.Exchange.Directory.TopologyService.exe
fec0:0:0:ffff::2Microsoft.Exchange.Directory.TopologyService.exe
fec0:0:0:ffff::3Microsoft.Exchange.Directory.TopologyService.exe
- One or more of the following zones do not include delegation to its child zone:
admin.riddlesdown.local
riddlesdown.local
local
. (the root zone)
Source: MSExchange Mailbox Replication Service (EventID: 1121)
The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error.
Request GUID: '87f4b926-0621-43d3-afeb-fe475ee6d850'
Database GUID: '23258311-ad29-41c2-a842-522f48baa267'
Error: Unable to read from Active Directory. --> The call to Microsoft Exchange Active Directory Topology service on server 'TopologyClientTcpEndpoint (localhost)' returned an error. Error details Unable to find a suitable directory server for domain 'admin.riddlesdown.local'..
--> Unable to find a suitable directory server for domain 'admin.riddlesdown.local'..
Something is cause the Exchange server to go looking for our old domain, but what and why?

Exchange DAG Replication Data Rate

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