It is not RAID as you know RAID. For example, the disks do not all have to be the same size.
For small numbers of disks (< 6) it will probably perform worse than RAID, but it is infinitely more flexible. Whether it is based on drive-extender or not is a matter of some controversy. Conceptually, it is quite similar. I've never heard one of the authors make that statement however. From: [email protected] [mailto:[email protected]] On Behalf Of Art DeKneef Sent: Tuesday, July 22, 2014 5:46 PM To: [email protected] Subject: RE: [NTSysADM] storage spaces? Timely topic as I was just looking in to this also and was about to ask the same question. >From I gather, Storage Spaces is based on the old drive extender technology >from Windows Home Server but vastly improved. It is software RAID. It is >normally not as fast as hardware RAID. But for home use that may not be that >big of a deal. What were you thinking of running Storage Spaces on? I am looking at using it on our installs of Windows Server 2012 R2 Essentials. Your thinking of a simple box, some drives and free NAS software would probably be less expensive depending on what you had or needed to buy.. Art DeKneef Avanti Computers Mesa, AZ 480-649-4430 Office 480-529-4430 Mobile From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Bill Humphries Sent: Tuesday, July 22, 2014 1:43 PM To: [email protected]<mailto:[email protected]> Subject: [NTSysADM] storage spaces? Any opinions about this? I was looking at it as an option for storing backups and maybe for media and backup server at home. A simple box with some NAS drives would be more economical than dedicated RAID hardware. Thanks. Bill

