HP3000-L Archives

December 2000, Week 1

HP3000-L@RAVEN.UTC.EDU
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Subject:
Re: Mirrored Disk vs. Raid
From:
Mark Landin <[log in to unmask]>
Reply To:
Mark Landin <[log in to unmask]>
Date:
Mon, 4 Dec 2000 10:46:27 -0600
Content-Type:
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On Sat, 2 Dec 2000 20:30:27 -0600 (Central Standard Time), Stan Sieler
<[log in to unmask]> wrote:

>You can buy some SCSI and IDE controllers whose only purpose in life
>is to look like a single drive to Windows, but actually have two identical
>disks connected, mirroring to the second drive.
>
>That's why I mentioned that I didn't know if anyone had such non-RAID
>mirroring hardware for the 3000.  BTW, that's not RAID, just like
>sticking 4 disks on an IDE controller also isn't RAID.
>

If I have two disks, one of which is a real-time mirror of the other,
how does that not fit the definition of RAID level 1?

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