The ramblings of a computer geek
Sometimes a tape will be marked as suspect, seemingly for no reason. To resolve this you need to do the follow these instructions to first identify the MediaID of the suspect tape against its Barcode. Then mark it as normal (i.e. not suspect). Remember great care should be taken when editing the Microsoft DPM database, … Read more
After a successful Exchange 2013 migration, the old exchange 2010 object was left behind. When opening Exchange 2013 EAC under the “Servers” option, “Servers” tab, you can see it listed as a “provisioned server”. For some reason this is not removed from AD automatically when Exchange 2010 is uninstalled from the server, so you need … Read more
We have some Linux web servers that we use for Moodle they are setup behind a Barracuda Load Balancer that then distributes the load based on how busy each of the web servers are. Essentially the more busy the server the less clients it is given to process. The barracuda load balancer uses an SNMP … Read more
I’m in the middle of a migration from Exchange 2010 to Exchange 2013 at the moment. All was going well until I repointed the DNS records to the Exchange 2013 CAS servers. In Exchange 2013 all client connectivity is now made using RPC over HTTPS (a.k.a Outlook Anywhere) unlike Exchange 2010 where only external clients … Read more
IPv6 is autoconfiguring, that’s great for worksations and mobile devices, but for servers you want some control. Yes you can hard code a static IPv6 address, but it will also show an autoconfiguration address too. You can disable the RA’s from the router, but in some cases you might not want to do this. So … Read more
You get this error when opening a course, in this case we were using course 33. When entering the course, you get this error message: “Cannot find data record in database table course_module” http://moodle.domain/course/view.php?id=33 SOLUTION: Open MySQL Workbench on the server and then run this query: Then you should see the course record in the … Read more
Okay so we’ve had VMware since version 3.5, and have upgraded through 4, 4.1 and then a big leap to 5.5 just recently. We started getting some really big issues with performance on some of the VMs, but it was not what I first expected! PROBLEM We had a web and SQL application server (Virtual … Read more
Upon booting the Dell PowerEdge R720 server with two Dell 6Gbps SAS HBAs that are installed and connected to a two drive Dell PowerVault TL4000 I got this error message Turns out this is a normal error. Page 25 of ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_dell_adapters/dell-sas-hba-6gbps_User’s%20Guide_en-us.pdf Basically because it is a tape HBA, the error is saying it cant be … Read more
Upon booting the Dell PowerEdge R720 server with two Dell 6Gbps SAS HBAs that are installed and connected to a two drive Dell PowerVault TL4000 I got this error message Turns out this is a normal error. Page 25 of ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_dell_adapters/dell-sas-hba-6gbps_User’s%20Guide_en-us.pdf Basically because it is a tape HBA, the error is saying it cant be … Read more
You’ve just installed your new Exchange 2013 server but there is a mailbox already there with a default name e.g. “Mailbox Database 0100716264”, if you are like me you’ll want to get rid of that and create a nice new one in a more sensible location but if you try to delete it you’ll get … Read more