Date: Wed, 12 Apr 2006 10:48:00 -0300 From: Paulo Fragoso <paulo@nlink.com.br> To: doc@FreeBSD.org Cc: Gerencia Nlink <gerencia@nlink.com.br> Subject: About Chapter 18 GEOM Message-ID: <443D0510.4090305@nlink.com.br>
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Hi, We have a very simple solution to install FreeBSD using RAID1. Can you put this solution in Handbook? (My english is poor) The simplicity is base on another a little FreeBSD instaled on other HD, in our case we are using a boot from network for diskless. After installed all system on frist HD (ex.: /dev/ad4), partitioned how you like, we can boot from a little (temporary) FreeBSD system installed on /dev/ad0 (in our case we are booting from network). Using this little system we can create a mirror device, using information from main HD, /dev/ad4: gmirror label -vnb round-robin gm0 /dev/ad4 gmirror load Now, we can add a second HD for this mirror (same size), in this case /dev/ad6, all partitions will be mirroed and you don't have to use dump and restore, which is hard work for several partiotions and labels: gmirror configure -a gm0 gmirror insert gm0 /dev/ad6 Now, this mirror is running and we can edit the main fstab and to configure this system to work correctly: mount /dev/mirror/gm0s1a /mnt echo 'geom_mirror_load="YES"' >> /mnt/boot/loader.conf vi /mnt/etc/fstab (change /dev/ad4 to /dev/mirror/gm0 in all lines) Now we can boot normaly in main system /dev/ad4 and using mirror system, in our case: $ df -h Filesystem Size Used Avail Capacity Mounted on /dev/mirror/gm0s1a 243M 60M 163M 27% / devfs 1.0K 1.0K 0B 100% /dev /dev/mirror/gm0s3h 134G 682K 124G 0% /home /dev/mirror/gm0s2d 248M 12K 228M 0% /tmp /dev/mirror/gm0s2f 2.9G 1.8G 929M 66% /usr /dev/mirror/gm0s2g 2.2G 108M 1.9G 5% /usr/local /dev/mirror/gm0s2e 496M 194K 456M 0% /var /dev/mirror/gm0s3f 496M 4.0K 456M 0% /var/amavis /dev/mirror/gm0s3g 496M 1.6M 454M 0% /var/db /dev/mirror/gm0s3d 496M 1.8M 454M 0% /var/qmail /dev/mirror/gm0s3e 496M 4.0K 456M 0% /var/virusmails and $ gmirror list Geom name: gm0 State: DEGRADED Components: 2 Balance: round-robin Slice: 4096 Flags: NONE GenID: 0 SyncID: 1 ID: 4081910748 Providers: 1. Name: mirror/gm0 Mediasize: 160041885184 (149G) Sectorsize: 512 Mode: r12w11e14 Consumers: 1. Name: ad4 Mediasize: 160041885696 (149G) Sectorsize: 512 Mode: r1w1e1 State: ACTIVE Priority: 0 Flags: DIRTY GenID: 0 SyncID: 1 ID: 1418281406 2. Name: ad6 Mediasize: 160041885696 (149G) Sectorsize: 512 Mode: r1w1e1 State: SYNCHRONIZING Priority: 0 Flags: DIRTY, SYNCHRONIZING GenID: 0 SyncID: 1 Synchronized: 59% ID: 307131166 This system is synchronizing yet. Paulo Fragoso.
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