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Bryan Pearson

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About Bryan Pearson

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  1. I installed using a demo key on one of our new 24-core servers. I am getting speeds of backup comparable to the 4-core system I am running our licensed version on. The new server can sustain 100MB/sec transfer speeds across the network to a similar server. The client or backup server the GB network are not busy. But the maximum speed I get on a non-verified duplicate job is 1200 MB/Min whether network encryption is on or off. The priority on the client is set to max backup as opposed to user programs. Why is Retrospect only 20% as fast as it should be? Neither the client nor the server seem to be using 100% of any of the cores on the system, so why the bottleneck? Unsurprisingly the network also shows 20% or less utilization. We had anticipated a speed bump from running on the new server. Instead we have pretty much the exact same performance as on a system with 4cores and drives with only 25% of the speed. This seems like it has an internal rate it is trying to never exceed. I tested a local drive to local drive duplicate on the new backup server, and it sustained a rate of 4000MB/minute. Clearly this shows that the network protocol is the limiter. This has me looking really hard for a replacement product.
  2. Bryan Pearson

    Volume Shadow Copy Service error

    I found a solution that worked, at: http://forums.techarena.in/windows-server-help/889459.htm The solution posted by Nomad worked: 2. Delete the HKLM\Software\Microsoft\EventSystem\{26c409cc-ae86-11d1-b616-00805fc79216}\Subscriptions key. (Just delete the Subscriptions subkey; leave the EventClasses key.) 3. Restart the server. 4. Run the "VSSADMIN LIST WRITERS" command. this worked for me. Open files backups are now working.
  3. Bryan Pearson

    Volume Shadow Copy Service error

    For me the error is ABSOLUTELY RELATED to Open Files backup. Whether locally or backing up a client, version 7.7.235 (and 7.7.203) simply closes (crashes) and 5 VSS errors are put into the event log, with event ID 12302. I can run the same script without Open File enabled, and it works, with no errors. I looked at the registry key mentioned in: http://support.microsoft.com/kb/907574 and found no registry keys listed at all for any programs. I am stuck for now, but I am still looking. If 7.7 uses VSS, shouldn't it put a key in: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex\Catalogs This is really killing me right from the get-go because it is occurring on a clean install of Windows 2003 SP2 x64. Backups of Exchange 2003 mailboxes work without difficulty.