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I have not tried a backup locally or with USB. Yes we are backing up to a remote share on the LAN. &nbsp;The exchange server is a VM on our network.<br />
<br />
I will try backing it up locally and see what results I get. 
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Any other ideas? &nbsp;The backups used to work fine and now they are taking forever to backup. 
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I'm having the same issue with a locally-attached USB drive as the target. Sure could use some help figuring this out. The process times out after about 6 hours (backup source is a ~900gb mailbox folder)...
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Chris,<br />
<br />
I was having the same issue until my logs got flushed. You will need to dismount the DB's and renable using Circular Logging to fix the issue. &nbsp;After doing this my backups are running great.
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jmto:<br />
<br />
Thanks for the input; I figured out my issue over the weekend - turns out that WinSvr08 doesn't like external HDs &gt;&nbsp;2tb and mine was 3tb. Once I swapped it the backup ran fine.
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We are having constant backup problems using the Windows Server 2008 backup utility backing up our Exchange 2010 DB's. <br />
<br />
We receive the following error in the Event Log:<br />
<br />
The backup operation that started at '¿2011¿-¿10¿-¿03T03:00:06.<wbr />702190700Z<wbr />' has failed with following error code '2155348041'. Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.<br />
<br />
The backups work off and on. Research has been spent on this issue with backups in which I have already tried circular logging, restarting Information Store service, starting Volume Shadow Copy service. <br />
<br />
The backups used to complete just clearing the logs but now after a succesful backup we receive &quot;Completed with Warnings&quot;<br />
&nbsp;<a href="https://filedb.experts-exchange.com/incoming/2011/10_w41/508966/ExchangeBK1.JPG" target="_blank" title="ExchangeBK3 (45 KB)"><img alt="ExchangeBK3" class="file-block lazyload" style="max-width: 444px;" data-src="https://filedb.experts-exchange.com/incoming/2011/10_w41/508966/ExchangeBK1.JPG" /></a><a href="https://filedb.experts-exchange.com/incoming/2011/10_w41/508967/ExchangeBK2.JPG" target="_blank" class="file-inline" title="ExchangeBK2 (43 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>ExchangeBK2.JPG</a><br />
<a href="https://filedb.experts-exchange.com/incoming/2011/10_w41/508968/ExchangeBK3.JPG" target="_blank" class="file-inline" title="ExchangeBK1 (50 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>ExchangeBK3.JPG</a>
</div>
</div>


ExchangeBK2.JPG

ExchangeBK1.JPG

ExchangeBK3.JPG

We are having constant backup problems using the Windows Server 2008 backup utility backing up our Exchange 2010 DB's. 

We receive the following error in the Event Log:

The backup operation that started at '¿2011¿-¿10¿-¿03T03:00:06.702190700Z' has failed with following error code '2155348041'. Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.

The backups work off and on. Research has been spent on this issue with backups in which I have already tried circular logging, restarting Information Store service, starting Volume Shadow Copy service. 

The backups used to complete just clearing the logs but now after a succesful backup we receive "Completed with Warnings"
 

Windows Server 2008 R2 X64 Exchange 2010 Databackup

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.