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B2D devices keep going offline, only they're not

Created: 28 Sep 2010 | 10 comments

We keep having backups fail because the B2D devices are being marked offline. They're not offline, though - I can access them, and nothing in the eventlog suggests they are actually going offline. 2010 seems to just think they are.

If I mark them as online again, then the backups start working, but I can come back a few hours later and find they've failed.

 

Environment:

Server 2008 SP2 (x86), BE 2010, 2GB RAM. B2D devices are folders on a variety of external, USB2 connected hard drives.

Have tried replacing the external drives, using different USB ports, etc.  Have checked power management in BIOS and Windows - nothing is set to power off at all. External drives not set to spin down on idle either (although even if they were, they shouldn't in this case as they're not idle!).

Help please!

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CraigV's picture

Hi Andy,

 

A couple of things to try here...

 

1. Inside of BE itself, just delete the B2D folders, and then recreate them...

2. Update your version of BE 2010 with all the latest patches, as well as SP1.

3. Upgrade to BE 2010 R2 which seems to have a better way of dealing with B2D folders.

 

#3 would be the long-way around of trying to solve it, so try #1 and #2 first.

Post the results here...

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Andy Kavanagh's picture

Thanks for the reply. It seems it is 2010 R2 we have installed already.  I've tried deleting and recreating the folders too - even replacing a whole drive they were on.

Andy Kavanagh's picture

FWIW, I also have SEP 11 installed on the same server, although I can't see that conflicting.

CraigV's picture

...only 1 way to find out whether or not, and that's to disable it. If it changes nothing, the issue lies with BE 2010.

What happens with a new B2D folder???

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Andy Kavanagh's picture

OK, I've disabled it for the time being.

New B2D folders do the same thing. In fact, they're *all* new B2D folders anyway - this is a new install on a new server.

srshimpi's picture

If you are using usb hard drive , and it is using for only single backup job then it is recommended to create "Removable B2D Folder" insted of normal b2d folder. It will allow you only 1 concurrent opration at time, but it will help you to resolve this issue.

If this response answers your concern, please mark it as a "solution" 

Sachin Shimpi

Andy Kavanagh's picture

Thanks, but that only lets you create the entire disk as a B2D device folder (that is, you pick the drive letter). I need a subfolder on the disk, not the root of the disk, to be the B2D devive.

Ken Putnam's picture

If you are using usb hard drive , and it is using for only single backup job then it is recommended to create "Removable B2D Folder" insted of normal b2d folder. It will allow you only 1 concurrent opration at time, but it will help you to resolve this issue.

No

removable B2D is designed for hardware where the case stays connected, but the platter is ejected/replaced

Jazz, RD1000 etc

External drives (USB, FireWire, eSATA, etc) should be standard B2D devices

If this response answers your concern, please mark it as a "solution"

Andy Kavanagh's picture

In addition to this, our previous system with Server 2003/BE 10d had exactly the same setup, and never had this issue!

CraigV's picture

...any news here?

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