Date: Thu, 11 Jul 2002 23:35:51 -0700 (PDT) From: "Andrew P. Lentvorski" <bsder@mail.allcaps.org> To: Gerhard Sittig <Gerhard.Sittig@gmx.net> Cc: freebsd-stable@freebsd.org Subject: Re: Software raid 1 on root partition? Message-ID: <20020711230521.E73169-100000@mail.allcaps.org> In-Reply-To: <20020711232331.U1494@shell.gsinet.sittig.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 11 Jul 2002, Gerhard Sittig wrote: > And in all the thread's length I still question the benefit of > running your root fs in software RAID. Since /tmp and /var and > /usr (and /home) usually all are separate partitions of their > own I don't see how the root fs could be often modified or > heavily stressed. Ummmm, I might want to do that so that the failure of the *single* disk which holds the root filesystem doesn't take out my entire system? The poster asked about RAID 1 which is mirroring only. He didn't care so much about performance, but he did want reliability. In a truly hot-swappable RAID 1 configuration, the system should *never* have to reboot after its initial startup due to a drive failure. Simply shut down the offending disk, swap it out, restart the new disk and rebuild the RAID 1 mirror. No system downtime required. If the drive fails during a reboot for system maintenance, manual intervention (pointing at the other drive, swapping the drives around, etc) is not an unreasonable expectation to get the system restarted. Then you replace the defective drive and rebuild the mirror. -a To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020711230521.E73169-100000>