Date: Mon, 26 Jul 2010 16:30:31 -0400 From: John Almberg <jalmberg@identry.com> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-questions@freebsd.org Subject: Re: 1 file system, 2 drives? Message-ID: <4C4DF067.7000801@identry.com> In-Reply-To: <980022A0-7623-40A5-BCDE-4909A721933D@mac.com> References: <4C4DDA28.4070205@identry.com> <980022A0-7623-40A5-BCDE-4909A721933D@mac.com>
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> If you have hardware controller with RAID capabilities, using native RAID is better, otherwise look towards gvinum or maybe ccd; see also: > I've just been reading up on RAID in my Absolute FreeBSD book, and it occurs to me that my client has a SCSI RAID drive chassis that he is using stupidly... It's a 14 bay drive, and he's currently got seven 32G drives stuck in it, configured with RAID-0. This is the original 200G drive I was talking about. It's a few years old. Over the next few years, this guy is going to need lots of storage for his videos. After a bit of reading, I'm wondering if the best idea might be to toss out those 32G drives and replace them with 3 big (say, 300G) drives configured with RAID-5. It sounds to me like a RAID-5 array can be expanded by adding new drives. QUESTION: is expansion normally a matter of just plugging in a new drive? Is the new drive automatically grafted onto the old drives? Or do you have to go through a process like, backing up the data, plugging in the new drive, reformatting the expanded array of drives, and restoring the data. I don't know the brand/model of the RAID drive chassis, but the client thinks it can be switched to use RAID 5. I'm waiting for the technical details, but assuming it can handle RAID-5 for now. Thanks: John
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