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RAID1 powerloss - can parity rewrite be safely backgrounded?

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From: Matt <openbsd@...>
To: <misc@...>
Subject: RAID1 powerloss - can parity rewrite be safely backgrounded?
Date: Tuesday, September 25, 2007 - 3:07 am

I'm running a RAID1 mirror on OpenBSD 4.1 (webserver)

On a power failure the parity becomes dirty and needs rewriting, which

results in > 1.5 hours 'downtime'.

Is it safe to background this in /etc/rc or is that a no-no?


I found a reference this was possible/safe on-list but it was a) 2003

and b) dealt with RAID5.

I'd like to make sure I am not doing something dangerous.


Thanks,


Matt
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Messages in current thread:
RAID1 powerloss - can parity rewrite be safely backgrounded?, Matt, (Tue Sep 25, 3:07 am)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Rob, (Thu Sep 27, 6:01 pm)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Brian A. Seklecki, (Thu Sep 27, 6:13 pm)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Greg Oster, (Fri Sep 28, 10:58 am)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., RedShift, (Fri Sep 28, 3:29 pm)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Steve Shockley, (Fri Sep 28, 10:39 pm)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Nick Holland, (Mon Oct 1, 7:09 am)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Marco Peereboom, (Tue Oct 2, 6:18 am)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Nick Bender, (Fri Sep 28, 6:36 pm)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Matt, (Fri Sep 28, 3:11 am)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., L. V. Lammert, (Fri Sep 28, 12:58 pm)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Brian A. Seklecki, (Fri Sep 28, 12:30 pm)
Re: RAID1 powerloss - can parity rewrite be safely backgroun..., Greg Oster, (Fri Sep 28, 11:20 am)