I’m struggling to understand how to do differencing disks in VirtualBox v3.1.0. I’ve created a Windows 2008 Server, but now I want to use that as a base image for a number of other servers. The help file has a description of what differencing disks are, but I can’t find where it actually tells you how to do it. In the Storage dialog for a server I found the Differencing Disks checkbox: but when I [...]Continue Reading »
Here’s a (hopefully) easy one: what does the warning sign: mean in disk management? The above image is of a mirrored drive (RAID 1) that is in the process of regenerating. Disk 3 was just added as a mirror to Disk 4. Basically that the disk with the ! is the disk with a invalid copy of the data, if this goes away, data rebuild will be stopped. Check more discussion of this question. Bookmark [...]Continue Reading »
How to create a differencing disk (a chained one) from a disk that is already a differencing image? I would like to have: W2008 (base immutable) -> W2008+SQL2008 (differencing, with SQL installed) — This I can do. -> W2008+SQL2008+SharePoint (chained differencing with Sharepoint installed on top of SQL2008) There’s some info about it the manual: http://www.virtualbox.org/manual/ch05.html#diffimages Differencing images can be chained. If another differencing image is created for a virtual disk that already has a [...]Continue Reading »
I have a 150 GB hard drive on a windows 2008 server. 87 GB partition for D: 10 GB partition for C: I cannot extend/increase the partition for C: in the disk manager utility. as described here: http://www.howtogeek.com/howto/windows-vista/resize-a-partition-for-free-in-windows-vista/ I tried doing it through the command: http://www.winvistaclub.com/t11.html However I got the error: There is not enough space available on the disk(s) to complete this operation. Is there unallocated free space in which to extend it? You [...]Continue Reading »
I have 10 workstations with large monitors that have USB slots and several card readers built in. The card readers cannot be disabled and will map to drive letters when I image the computers. I go into Disk Management and delete the drive mappings and add mappings to a single folder in C: with a folder for each slot. I have to do this because of scripts that run that are expecting specific letter drive [...]Continue Reading »
We have several relatively recent (less than 1 week) installations of Windows Server 2008 R2 Enterprise that are getting this error whenever we open Disk Management. The application name is vdsldr.exe and the Problem Event Name is BEX64. The windows firewall was turned off and the service disabled. The Virtual Disk service was started (identical results when it is stopped). The computers are virtual machines running on VSphere, so that could be part of the [...]Continue Reading »
Need to manually rebuild a mirrored array on a server and am in the process of reinstalling SBS 2003 on it. However, it’s a Dell server, and know that there’s the Dell FAT32 diagnostics partition, a system partition, and a data partition, but do not know the size of each. Planning on reinstalling SBS 2003, all applications on the server, and then doing a System State restore, but figured that not having the correct partitions [...]Continue Reading »
Here is my scenario; Windows 2008 server on a VM Two VM disks; Disk1 > OS >Basic Disk2> Data and an Installed Application.> Basic During the weekend, I was playing with this VM, I wanted to add some space to the Disk2. Created a new disk (disk3), converted it to a Dynamic volume and added this to disk 2 (disk 2 also converted to Dynamic volume) and for some reason these now are spanned volumes. [...]Continue Reading »
How is made sure magnetic or electric fields from devices like transformers or fans close nearby do never affect hard drives?
Fans and transformers which are inside the server case create magnetic and electric fields. Electric fields can be easily shielded, but what about magnetic fields, they can only be shielded with high cost materials like mu metal http://en.wikipedia.org/wiki/Mu-metal If a hard drive is installed too close to an intense transformer field, how is the magnetically stored information on the ferromagnetic surfaces of the disk kept safe? Even if drives are shielded, where are the limits? [...]Continue Reading »
My Nagios system sent me an alert to inform me that the disk space on one of the drives on our OS X server is very low. When I run df /Volumes/Apps/ I get /dev/disk0s3 117209520 114932472 2277048 99% /Volumes/Apps When I run du -c /Volumes/Apps it reports 11489944 total Why might there be such a vast difference? Even more importantly, how do I find the problem and what can I do about it? I’m [...]Continue Reading »
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