Why dynamic disks are still relevant

When Windows made dynamic disks available, administrators were given an incredible amount of functionality to handle the problem of storage growth. Windows Server 2008 (and late editions of Windows Server 2003) offer additional features to manage storage now with the ability to easily expand and shrink disks. So if it’s easy to expand a basic disk in the Disk Management snap-in, are dynamic disks still relevant?

In my opinion, dynamic disks are not quite ready for the IT graveyard. This is due to storage products usually gravitating around the 2 TB limit for single addressable logical unit numbers (LUNs). Some storage processors in storage area network (SAN) products limit LUN sizes to 2 TB for broad compatibility for server operating systems utilizing block storage (fibre channel or iSCSI). Network attached storage (NAS) offer a file-based namespace and frequently can utilize a larger size than the 2 TB limit. In my Windows practice, I occasionally exceed the 2 TB limit, and I learned a bit along the way in my recent post on NTFS allocation unit sizes for large volumes.

Read the entire post at TechRepublic.



One response to this post.

  1. Posted by Dave Kegs on July 27, 2010 at 11:07 am

    Can’t you just use GPT volumes to get around the 2TB limit and be able to stick with basic volumes?


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