Messages in this thread |  | | Date | Mon, 29 Nov 2004 11:07:08 +0100 | | From | Jakob Oestergaard <> | | Subject | Re: raid1 oops in 2.6.9 (debian package 2.6.9-1-686-smp) |
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On Sun, Nov 28, 2004 at 02:28:41PM +0000, Robert Murray wrote: > Hi > > The complete console log can be found at http://haylott.plus.com/~robbie/md-oops.txt > > hde is a failed drive. In this log, hdg (the other drive in the raid1 > array) is not present. This oops also occurs when hdg is present. I > don't know why it tries to use hde when it has been failed for some > time now. This doesn't occur with 2.6.8 (also a debian kernel). I > don't have a log of the oops when hdg was present, but I can provide > one if necessary. > > Please let me know if there is any other information I can provide to > help to debug this. For now I have removed hde and everything is > working fine.
On a second note: Could someone please provide an explanation of why the raid10 driver exists? People have created RAID-10 sets for years using the RAID-0 driver on top of several RAID-1 arrays - this works beautifully, it's simple, and it's easy to explain to people.
Why oh why, do we need raid10 ?
(I don't mean to bitch and moan over it - I just assume that there is a good reason for it which was somehow never conveyed, or that I overlooked in my search for this explanation)
And; if raid10 does not provide new functionality that was not possible with raid1 + raid0, why oh why does this get accepted in a stable kernel series? (ok, 2.6 is not stable, but I assume the intention is to make it stable eventually, and accepting new functionality does not help this process - all in all I do not understand the raid10 submission at all, but I hope to be enlightened by someone (Neil?))
Also, I'd love to add a mention of raid10 in the HOWTO, but I need to know why raid10 even exists before I can reasonably do that.
--
/ jakob "baffled Software-RAID HOWTO co-author"
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