On Wednesday September 11, ejohnson@milleraa.com wrote: > I installed Suse Linux Professional 8 on a HP Netserver LC3 PII/450. An > AHA-2940 UW Scsi host adapter with a AIC-78XX Scsi Protocol Chip/50 pin > high density scsi-2 control. I have a raid (3 drives) off the host > adapter and a 80 gig scsi drive off the mother board. After launching > yast2 the first raid has the following device: LD0 raid 5 34730R: > device_name /dev/sda, vendor megaraid. Disk two (80 gig drive) has LD1 > raid 0 70006R: device name /dev/sdb vendor the same as above. There was > no raidtab file so I created one with the following: It sounds like you have hardware raid (megaraid) that presents the two raid devices as /dev/sda and /dev/sdb so they look like scsi devices, but are really raid arrays. In this case, you don't need raidtab or mkraid at all. These are for 'software' raid which is quite separate from hardware raid. software raid: Linux kernel does all raid management. hardware raid: special card knows about raid and does lots of the work rest of work done in the driver for the card. NeilBrown > > raiddev /dev/md0 > raid-level 5 > nr-raid-disks 1(little sketchy on this because it is three drives that > make up the raid) > nr-spare-disks 0 > persistent superblock 1 > parity-algorithm left-symmetric > chunk-size 2048 > device /dev/sda > raid-disk 0 (sketchy here as well) > > #Second drive > raiddev /dev/md1 > raid-level 5 > nr-raid-disks 1 > nr-spare-disks 0 > persistent-superblock 1 > chunk-size 2048 > device /dev/sdb > raid-disks 1 (sketchy as well) > > Trying to follow the procedures and I type: > mkraid /dev/md0 and I get: > > Handling md device /dev/md0 > analyzing super-block > disk 0: /dev/sda, 35563520kb, raid superblock at 35563456kb > > Second drive I get: > > Handling md deviice /dev/md1 > analyzing super-block > disk 0: /dev/sdb, 71686144kb, raid superblock at 71686080kb > > I then type cat /proc/mdstat and get the following: > > Personalities [RAID5] > read_ahead not set > md1: inactive sdb [0] > 71684096 blocks > md0: inactive sda [0] > 35561472 blocks > unused devices: <none> > > If I read this correctly both are inactive when it should be stating > that they are active. At this point I am baffled any suggestions or > possible directions would greatly be appreciated. > > > Thanks in advance, > Ed > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
