Blog Archives

McAfee mini-firewall issue

I had a server a few weeks ago that suddenly started experiencing blue screens of death for no aparent reason. It tooks a week or troubleshooting and digging to finally determine from a crash dump file, that the cause of the issue was the mini firewall component of McAfee viruscan 8.0i. I was able to disable the component in the registry and havn’t had a problem since. This server was an Iomega NAS p435m. So FYI – if anyone has any similar unexplained problems, check the mini firewall in McAfee, as it may be the cause, although in our case it took a memory dump file analysis to find out the cause.

Backups backups backups

After about 9 years of being in IT, I’ve learned how important backups are. I’ve experienced data loss due to not having a good backup several times. It really is worth it to have a good backup plan. Whether at work or at home. At home, I’ve got two 2003 servers, two XP desktops and I always make sure I at least make a ghost image of each one, with just the bare OS and again with all the software I need loaded. For example, my home PC, last night I was having troubles due to some beta software I installed (foolishly). I had planned to use my other XP desktop for software testing, but never seem to do that. The junk always goes on my primary PC, after all its faster and resist crashing longer than the slower desktop. So anyway, long story short, I decide to restore a ghost image of my Home PC with all the software loaded on it. Since I have a domain, my user accounts are still OK, I keep all my data on separate drives and network locations, so I won’t loose anything. But there always seems to be something you forget. Items like desktop downloads, favorites, RSS feeds, etc. now I couldn’t get windows explorer to work long enough to copy anything, so I got out my trusty Knoppix 3.9 bootable CD, inserted my thumb drive, and off I went, I was able to use Linux to get my data off my drive, before I reloaded the ghost image. I finally around 11pm, got all the stuff copied over and my ghost image restored. All I had to do was setup our desktop profiles again, like setting up outlook, and redirecting the my documents folder. Then I was done. So I’m all back up and running, thanks to having a good backup strategy. It only took 4 minutes to restore the ghost image, if I had to reinstall windows and all my apps manually, it would have taken hours! I use NTBACKUP to backup my two servers. The other desktop I don’t care about and will likely give away soon anyway.

Once I lost 2 years of data on a Novell Netware server I had at home. I decided I’d break a mirrored volume in Netware, forgetting I had stuff on it. Once it was broken, my data was gone. Boo hoo hoo. I was recently using a Dell PowerVault NAS 705N for my storage needs, but its a little slow, it was RAID5 which was good, but I decided to sell it, so now its listed on eBay. I hope I can sell it and get another 400GB hard drive. I have about 1TB of storage space in my PC right now. I need it too, I’ve got 200GB of normal data, like CD images, software, downloads, documents, etc. Then I have lost of multimedia, like music, movies, home video recordings and such that take up a lot of space. So I need to get one more drive and that should do it for now. My only concern now is that if any one of these drives fail, I loose all my data, and I don’t have a location on my network with storage large enough to store all that data if I were to back it up. I thought about getting a tape drive, but don’t want to spend the money (that I don’t have) on a tape backup solution which would likely not be large enough to hold all my stuff on a single tape anyway.