Here's my notes from RH7.2, it worked for me under VIF. ***************************************************************** To create a RAID Create/Update /etc/raidtab to add /dev/md0 devices mkraid /dev/md0 mke2fs -b 4096 -R stride=32 /dev/md0 *** stride is the result of chunk-size divided by blocksize 4k x 32 = 128k chunk-size specified in raidtab To check RAID device status "cat /proc/mdstat"
To stop Raid device - "raidstop /dev/md0" To start Raid device - "raidstart /dev/md0" ***************************************************************** --- Moloko Monyepao <[EMAIL PROTECTED]> wrote: > When I post a message to this list is because I gone through the > archieves to check if the similar problem has been reported and > followed the HOWTO from linuxvm.org without getting any help. And so > my last hope is this listserv. So because I really need help I will > give all the details from what I did until where I get the problem. > > Step 1 > I created a /etc/raidtab here it follows > > raiddev /dev/md0 > raid-level 0 > nr-raid-disks 4 > chunk-size 4 > device /dev/dasdd > raid-disk 0 > device /dev/dasde > raid-disk 1 > device /dev/dasdf > raid-disk 2 > device /dev/dasdh > raid-disk 3 > > Step 2 > > Run mkraid /dev/md0 > > Results in /proc/mdstat > > Personalities : [raid0] > read_ahead 1024 sectors > md0 : active raid0 dasdh[3] dasdf[2] dasde[1] dasdd[0] > 9613440 blocks 4k chunks > > unused devices: <none> > > > Step 3 > > Run mke2fs -b 4096 /dev/md0 > [root@vmlinux1 root]# mke2fs -b 4096 /dev/md0 > mke2fs 1.23, 15-Aug-2001 for EXT2 FS 0.5b, 95/08/09 > Filesystem label= > OS type: Linux > Block size=4096 (log=2) > Fragment size=4096 (log=2) > 1202944 inodes, 2403360 blocks > 120168 blocks (5.00%) reserved for the super user > First data block=0 > 74 block groups > 32768 blocks per group, 32768 fragments per group > 16256 inodes per group > Superblock backups stored on blocks: > 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632 > > Writing inode tables: done > Writing superblocks and filesystem accounting information: done > > This filesystem will be automatically checked every 29 mounts or > 180 days, whichever comes first. Use tune2fs -c or -i to override. > > Step 4 > > Run mount /dev/md0 /var/spool/mqueue > > [root@vmlinux1 root]# mount /dev/md0 /var/spool/mqueue > mount: you must specify the filesystem type > > > Step 4 > > Run mount -t ext2 /dev/md0 /var/spool/mqueue > > [root@vmlinux1 root]# mount -t ext2 /dev/md0 /var/spool/mqueue > mount: wrong fs type, bad option, bad superblock on /dev/md0, > or too many mounted file systems > > Step 5 > > Run dmesg (This error comes after I have done the mount) > > FAT: bogus logical sector size 0 > VFS: Can't find a valid FAT filesystem on dev 09:00. > VFS: Can't find ext2 filesystem on dev md(9,0). > > Any help will be appriciated. > Thanx > Moloko Monyepao > arivia.kom > Tel : +27 11 800 3372 ===== Chet Norris Marriott International,Inc. __________________________________________________ Do You Yahoo!? Yahoo! Autos - Get free new car price quotes http://autos.yahoo.com