It may depend on the RAID subsystem, but you generally may be able to get away with it. I know you can do it on at least some of the EMC NS series, but I haven't tried it elsewhere. The problem is that slower disk will be a bottleneck for the entire array. It is always better to match drive specs when possible.
And I would *NEVER* trust software based RAID. That is simply a data loss nightmare waiting to happen. Jonathan L. Raper, A+, MCSA, MCSE Technology Coordinator Eagle Physicians & Associates, PA [email protected]<BLOCKED::mailto:%[email protected]> www.eaglemds.com<BLOCKED::http://www.eaglemds.com/> ________________________________ From: David Lum [mailto:[email protected]] Sent: Wednesday, June 24, 2009 10:46 AM To: NT System Admin Issues Subject: HDD spindle speed RAID Does matching HDD spindle speed matter when you are RAID-ing arrays? Can you have RAID 1 with a 10,000rpm drive and a 7200RPM one? The controller just adjusts when it's waiting to know both drives are ready for more data, right? Somehow I seem to think they need to match - is it only specific conditions? Hardware raid vs software perhaps? Only stuff other than RAID 0 or 1? Or was the crack I smoked still having an effect? Bueller? David Lum // SYSTEMS ENGINEER NORTHWEST EVALUATION ASSOCIATION (Desk) 971.222.1025 // (Cell) 503.267.9764 ________________________________ Any medical information contained in this electronic message is CONFIDENTIAL and privileged. It is unlawful for unauthorized persons to view, copy, disclose, or disseminate CONFIDENTIAL information. This electronic message may contain information that is confidential and/or legally privileged. It is intended only for the use of the individual(s) and/or entity named as recipients in the message. If you are not an intended recipient of this message, please notify the sender immediately and delete this material from your computer. Do not deliver, distribute or copy this message, and do not disclose its contents or take any action in reliance on the information that it contains. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
