Why RAID 5 stops working in 2009...

Somewhere in July 2009, this was one hot topic that caught my eyes, but I did not care because WHS has a simply, cheaper and more advance way to manage drives then RAID. But it turns out that by mahtematics, ya Q.E.D so to speak, if a 2TB drive in a 12TB RAID 5 config goes KO. Then that will trigger a rebuild. And based on the 6 remaining SATA drives, the error rate is 100%. Therefore you cannot rebuild the RAID array. All 12TB gone. Thats the simple version...

I think the importance here is to stress that BACKUP and RAID are 2 different thing. You should not do without BACKUP, even if you have RAID, which in general is a good and sounding practice. What? Your company don't do that? Then you should quit before 2009 (or upgrading to a 12TB configuration) before shit is on your hand as per say. :)

See the original post and flaming all over in:

http://blogs.zdnet.com/storage/?p=162

MS Home Server Backup Server Error

One of hte backup in the night failed cos it was done over a wireless connection... And I ended up with a red icon in the morning saying there was some database inconsistency...

Here is once solution I found, and I think good to share. However, I have not sad down to fix it yet...

Sometimes the Network will go red and report critical, in the console, and the details will say,
"Backup server error"

"A possible database consistency problem has been detected in the backup database."

As others have noticed you can run a manual backup, mark it for deletion and then manually run "cleanup now" which, if successful will reset the error.

However, as some have posted, sometimes the cleanup fails, as it just sits doing nothing, and here's how to fix it if nothing else works:

(NOTE: you will lose all backups)
1) Exit then uninstall the connector sw on the client(s)
2) RDP to the desktop and run the Windows Home Server Console
3) In the computers and backups section, remove the client(s) (this will claim to delete the backups but it wont)
4) Open Windows Explorer and navigate to D:\folders\{00008086-058D-4C89-AB57-A7F909A47AB4}
5) Manually delete all files
6) Reboot WHS
7) Log back into the WHS Console and select Settings - Backups then run "Cleanup Now" (this will reset the error)
8) Navigate to \\YOURSERVER\Software\Home Server Connector Software
9) Run setup.exe to reinstall the connector software
10) From the connector console select Configure Backup for each client installed.