Re: RAID-1 and Reiser4 issue: umount hangs

[Arend Freije]

Alexander Zarochentsev wrote: Hello, On Tuesday 30 May 2006 00:17, Arend Freije wrote: Hi, I'm using Reiser4 for my filesystems on disk (/dev/sda) , and it works just fine. Recently I bought a second disk (/dev/sdb) for RAID-1 mirroring. With mdadm I created a degraded raid-1 array on /dev/md/0, devices missing,/dev/sdb1. After that I created a Reiser4 filesystem on /dev/md/0 and mounted it at /mnt. Then I copied the data from /dev/sda1 to /mnt. would it work better with "no_write_barrier" mount option? It would indeed. What's the purpose of this option? Kind Regards, Arend