Re: Proposed Enhancements to MD
From: Matt Domsch <hidden>
Date: 2004-01-13 20:36:34
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On Tue, Jan 13, 2004 at 03:29:45PM -0500, Chris Friesen wrote:
How is this different than the 20GB RAID0 and 6 15BB RAID1s that I've got on two 100GB spindles right now?
Indeed, md does this with partitions on the disks today, so it is analogous; DDF does this with disk extents, which has the same functionality as partitions, but without an MSDOS partition table to define the partitions, but an on-disk metadata format (yes, partition tables are metadata too...). The solution needs partitions/extents in two places. 1) below the logical drive, from which logical drives are created. 2) above the logical drive, on which multiple file systems are created. md provides 1) today, and as discussed today patches exist to do 2) that have not yet been merged. -- Matt Domsch Sr. Software Engineer, Lead Engineer Dell Linux Solutions www.dell.com/linux Linux on Dell mailing lists @ http://lists.us.dell.com