Re: Migrating to gmirrored RAID1
On 20.8.2008, at 10.48, DA Forsyth wrote: Good for you. I see I'm a bit late coming in with my advice, which is to follow the instructions at http://www.onlamp.com/pub/a/bsd/2005/11/10/FreeBSD_Basics.html?page=1 with a few mods because you (and I) were not building a new machine. This is the one I basically followed - I read both that one and the freebsddiary one. I decided to reinstall the server though, because I was any way going to reinstall world and lots of packages were outdated as well. Dumping and restoring would've worked as well, I think. One thing with gmirror is that it won't like to suffer repeated power failures. If the time between failures is less than the time it takes to rebuild the mirror the mirror will break and require manual fsck and then a rebuild. This happened to my test server a few weeks back but today I get to install a UPS for it so this should not happen again. OK, good to know. Luckily I have a small UPS which should provide five to ten minutes of full power. In Finland the power cuts are quite rare and usually measured in mere seconds than minutes, so it's sufficient most of the time and if not, apcupsd shuts the server down after few minutes if something bigger happens. -- Henry Karpatskij http://ripe.net/fcgi-bin/whois?searchtext=HK1203-RIPE ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Migrating to gmirrored RAID1
Thanks a lot folks, I managed to get the server working, only one file could not be read from the bad disk, but it wasn't required. It took hours to do it and it certainly will remind me next time I choose to be lazy and install a server to non-mirrored disk. :-) -- Henry Karpatskij http://ripe.net/fcgi-bin/whois?searchtext=HK1203-RIPE ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Migrating to gmirrored RAID1
Hi, I have a failing IDE disk which is running my 7.0-p1 server. I've been investigating the possible solutions and I've decided to go with two new IDE disks and gmirror. However, I'm not too familiar with disk internals, I know how to install the system and somehow understand the concept of slices and partitions, but that's about it. I found some examples on how to install the gmirror on a running system, but they all have in common that they just add new spare disk to the system and turn on the mirroring to it, but I need to replace the current disk which is not the same size as the new ones. Any suggestions how one would do such an operation? Should I just re- install the server to a new disk, turn on the mirroring and then restore the configuration and files from the failing disk? Or is it easier to add the disks to the running system, turn on mirroring and then somehow dump the current disk to the mirror and then re-configure it to boot from the gmirror and remove the failing disk? Current df output: Filesystem 1K-blocksUsedAvail Capacity Mounted on /dev/ad0s1a507630 159262 30775834%/ devfs 1 10 100%/dev /dev/ad0s1e507630 56 466964 0%/tmp /dev/ad0s1f 33573476 6044408 2484319020%/usr /dev/ad0s1d 1762414 381632 123979024%/var devfs 1 10 100%/var/named/dev Thanks in advance, -- Henry Karpatskij http://ripe.net/fcgi-bin/whois?searchtext=HK1203-RIPE ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
