I have a four-disk
5 configuration that is running out of room. I currently have four 9.1 GB Ultra
-2 drives. Can I replace each drive, one at a time, with larger drives and have the array rebuilt to accommodate the larger drives? I have two volumes on the array. Can I expand the data volume to assume the increased space?
Thank you for the question. This question has come up a number of times in my work and the answer all depends on what the RAID vendor supports. Unfortunately, there is no standard answer to what can be done and what can't in a generic RAID 5 configuration, as each RAID controller allows for different operating capabilities. Some will allow you to rebuild a RAID implementation on the fly and add disks as needed, while others will not, requiring you to back up the data, tear down the RAID configuration and rebuild it, and then restore the data back from tape or mirroring back using a host based volume manager. I would check with your RAID vendor and ask them what they support doing in this environment.
We are currently using an HDS9960 array and are planning to upgrade early next year to another enterprise array. We're in the process of evaluating ...continue reading
We are looking at purchasing a new storage system for our financial application, what should we be looking for? The system needs to provide very high...continue reading
Storage management expert Brett Cooper answers the question: Are there any basic guides on how a manufacturing company could manage their data better?continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.